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&HQdWifc&tGAS MOTORS Offlet ttu4 im a g in g tfuananfee] AND WHAT AN AMAZING GUARANTEE IT IS! We give you 10 days time to inspect ell parts and actually run the FREE motor. If at the end of that period you find any part defective we shall be glad to replace it free of charge. Can anything be more Dne finished fair? Never before was such an open offer ever made. Here is the reason we are able to offer this unusual guarantee. The G.H.Q. I y w h e θ I motor is the re-sult of years of exhaustive, scientific, aerody nountod on namic research. Every motor is given a gruelling test and run before shipped to you. We have spared no expense in modern notor with factory production so that we may be certain of one thing —that each motor is uniform in every respect. Our tre ivery finished mendous output (thousands of motors have already been notor. bought) together with the fact that wo are one of the largest concerns of its kind in the model airplane field, is your assurance that each G.H.Q. motor conforms to its high standard of performance. That is why we are able to offer this broad unconditional guarantee. G. H. Q. Motor Gives You Long Wear It Is the modern miniature motor designed exactly »s present day real motors that 1ms broken records for amazing performance And look at the reason I d many cases we could have saved considerable rnonev using inferior parts. Examine each part clowlv. Look at the Hie time high-speed bronze connecting rod—and the crank shaft 5/16^ thick as compared to other motors jelling at twice the price having R thickness or only 3/16 . Then, too. (t.JI.Q. has one or the largest crank-shafts of any motor—as well as the fool-proof long life timer. The Price Is So Low—We Can't Soli To Dealers The G.H.Q. Motor Is priced especially low so that you may deal direct with our factory, Even though dealers have askod to handle this product. have not been abb· to give them a special dealer's price..c. This11119 Hiiiiuiufamous uivwi. motor, ινυμιπΓ,complete, entirely assembled on stand, testa! snd run before shipment,idpmcnt, performance guaranteed. No oil. gas or batteries included. Postpaid for only $12.oi). rtws—one Si 050 finished fly-wheel mounted on motor with every finishedd motor...... ψ JL Mm— STANDARD WARRANTY "W c warrant each new G.H.Q. gaso line engine manufactured by ns. to I* free from defect)* i„ material an
5 CONTKNTS: Each of these hew C.H.Q. Giant .'i ft. M odel Planes contains full-slz*.· Plans. >U rihs, formers and curved parts clearly Dear Editor: Hopkins, Minn. tnted on beat grade Italsa. Large lollies These are the giant models that .‘cm cnt and Dope. different colors Japanese Enclosed is a photo of n gas powered model airplane built hy Rob have amazed the model build Tissue. Special Riuluranec Rubber, finished ert Apgar, of Minneapolis, and myself. It is of original design and n*««ly-Cut 8" W heels, W ire. Ha Isa strips cut ers of America- Imagine strong size. Washers, and . . . Movable Controls, powered with a G. II. Q. motor. outdoor flyers that are actually ShOck.jjroof Landing Gear. Scale Details. Lettering, The model weighs five and onc-half pounds, has a wing span of one-third the size of passenger nine feet, and an aspect ratio of 8-1. On a test flight the model went carrying planes—a $10 value for only out of sight after ten minutes, but was later recovered from a tree $1.00. Everything is in the kit including overhanging the Mississippi River. all liquids—nothing else to buy l Your articles on teas engines, cas models, and model airplanes are excellent. Francis Kosanda. Judging from the report, the ga* model mint bo an excellent cloud chaser and we are glad It was recovered without serious damage.
E l A C I i | you are interested in special ■ · contest and speed work, write us for folder giving details on “souping” up and lightening your G. H. Q. engine. 5 ft. Monocoupe, also 5 ft. Heath I’arasol and 5 ft. Stin Send 3c for illustrated catalog: of gasoline motors, gasoline planes, son Reliant. gasoline accessories and parts. We have a d A . m £ 4 Λ Λ complete line of kits from ...... IUC TO ψ ι.νν 854 East 149th Street G. H. Q. MODEL AIRPLANE CO. N E W YORK, N. Y. MODEL AIRPLANE NEWS v _ ^ ( 1
with BABY CYCLONE
$30 u\l N PRIZES SPECIAL KIT OFFER ONLY PROVEN ENGINE
Make plans now^o attend the 1937 N a A t only slight additional cost you can get "Baby Cyclone" Engines are the O N LY tional Model ConteHiand win one of two the "California Chief" Kit and special miniature power plants using the proven $150.00 cash prizes wHh the Baby C y hardwood prop which have been specially rotary valve principle (which gives 25% clone" Engine. Again thiryear Moj. C. C. designed for your Baby Cyclone" Engine more-power then the usual 2-stroke en Moseley. Pres, of Aircraft Inoystries which A simple design for inexporienced build gines)— and the same principle as used builds this spectacular engine rtas depos ers. Hundreds now flying with champion in the new outboard motorboat engines ited $300 with the Los Angeles Λ ship performance. 5-foot wing span, as They have demonstrated their unbeatable of Commerce— $1.50 goes to the sembled landing gear and all parts sup stamina, endurance and positive long life betwoon 16 and 21 years of age and $ I plied and easy to assemble with full size operation by ru n n in g more than 100 goes to the winner over 21 years of ago plan instructions. Fill out the coupon whose model, powered with a "Baby C y mediately. gruelling hours wide open under super clone" Engine, takes vised test. Two strictly stock Model D first place in the out Iso available the record-holding "Baby Cyclone” Engines completed this door Gasoline Pow Champion" Kit— an advanced spectacular run with a perfect score— a ered Contest for design fo r ^ ^ p e r ie n c e d builders— that record no other engine has dared to cabin r.o.g. models gives you ♦ho'fimjst model airplane spe attempt. This is proof positive to you that at the 1937 National cially designed fo^your "Baby Cyclone" the “ Baby Cyclone" is the ONE engine Model Contest. The which money can buyNHigh wing, open tim e an d you. too. can depend on when you get in cockpit design. 5-foot win^sspread. 'with place of the hot competition. "Baby Cyclones" are all parts supplied, together meet will be backed by the reputation of an old relia plan drawing and instructions. Usfesjho ble firm in which you can have complete coupon N O W Send the coupon N O W .
MAJOR C. C. MOSELEY, Pres. Aircraft Industries, Grand Central Air Terminal, Clendale, Cal. o me postpaid your special offer of new Model D Engine ,25 plus prop and California Chief Kit at $5-00 for which enclose P.O. money order for $22.25. □ Send me postpaid your special offer of new Model D ▼ '7.25 plus prop and California Champion kit at which I enclose P.O. money order for $24 25 5end me engine only at SI7.25 □ Send me California Cham- Send me California Chief kit pion kit only at $10.00. only at $7.90. □ Send me prop only at 51.50.
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CURTISS- WRIGI TECHNICAL INSTITU GRAND CENTRAL AIR TCRMI GLENDALE (LOS ANGELES*. CALIFOf In Our Next Issue
The Koolhoven Pursuit, by Robert V. Smith, gives you complete details of how to build a flying scale model of the fastest No. 3 and most beautiful pur suit ship in the world. The model is accurate to scale and a beautiful flier. Edited by Charles Hampson Grant
On the 10th anniversary of Lindbergh's flight, The Plane That Flew to Paris, by Jesse Davidson, tells you of many secret de tails of Lindbergh's his toric ship, the Spirit of CONTENTS St. Louis, and shows you how to incorporate them in one of the finest scale models of it that has k MAY, 1937 ever been built. ,r » y What’s New in Planes...... 4 How to Adjust Your Out- Including: door Models, by Vernon Boehle, gives information How to Build a Scale Model of the Lockheed 14 (3 view) that is invaluable to ser By Robert C. M orrison...... 6 ious model fliers who de sire t.o build an d fly Indoor Plane Facts record breakers. By Carl Goldberg...... 7
Building the Nimbus Gas Build This Winner of the Bendix Model Trophy Μ o d e I, by B enjam in By Donald Mertens...... 8 Shereshaw, shows the gas power fan how to create a gas model of advanced “Gas Lines” (I.G.M.A.A. New: 10 design and performance.
Build This Stinson from Scrapwood By Jesse Davidson...... 13 A Tube Tractor for the Experimenter, by Walter Farynk. tells you how to Building a Streamline Gas Model (Conclusion) build a test flier that is By Leo Weiss...... 14 a beauty when on the ground or in the air. ί >-'* Designing Your Model for Distance (Part No. 2) By Charles Hampson G rant...... 17 You will also have ar ticles such as Designing ν ' Your Model for Duration, Frontiers of Aviation, Gas Lines, Air Ways, and Build and Fly the Westland Cooperation Plane 3 view drawings which By Robert Harrison. provide a wealth of in G3t formation invaluable to those who are seeking a career in aviation by means of model aviation.
Published Monthly by JAY PUBLISHING CORP., Mount Morris, Illinois. Editorial and General Offices, 551 Fifth Avenue, New York City. George C. Johnson, President. jay P. Cleveland, Secretary. Jay P. Cleveland. Advertising Manager, 551 Fifth Avenue. New York, N. Y. Entered an second-class matter Dec. 6, 1934, at the post office at Mount Morris, 111., under the act of M arch 3, 1879. A dditional e n try a t New York, N . Y. Copyright 1937 by JAY PUBLISHING CORP. Price 20c a copy. Subscription price 51.65 a year in the United States and its possessions: also Cuba. Mexico and Panama. $1.65 in Canada. All other countries $2.50 per year. Contributors are especially advised to be sure to retain copies of their contributions, otherwise they are taking unnecessary risk. Every possible effort will be made in our organization to return unavailable manuscripts, photographs and drawings (if accompanied by postage), but we will not be responsible for any loss of such matter contributed. MODEL AIRPLANE NEWS may 3 Don't Miss "The Holy Terror" See the "Denny Jr." in Action! It's a Star Performer In This New 20th Century-Fox Production Featuring Jane Withers .... Jleymald dewity
Wherever You Live I Offer You Conclu sive Proof Its T World s Finest (__ Job! All You Have To Do Is See "The Holy Terror" . . . and You'll Be Convinced I'm Right. JANE WITHERS Featured Player in Here’s a chance for you gas model fans to sec the job that "THE HOLY TERROR" has stolen the show in the gas model field. It is your op- A 20th Century-Fox Production portunity to check up on all the things we have told you. You'll admire the graceful lines, the smart appearance, the flyability, the speed and the power of the Denny Jr." You will know why our friends are so enthusiastic in The NEW Denny "CONDOR" their praise. You will realize, why leading Hollywood studios demand Dennyplanes when model planes are re quired for filming. And I know you will want the fun of building and flying a "Denny Jr." A Sensational Low Price! Tliis championship kit contains finished spun cowl, finished propeller, cut out riba, finest ivory silk cov ering. selected balsa and bass wood, ample supplies of cement and dope. Swedish steel landing: gear wire. 8%-lnch pneumatic wheels complete full-size A Super-Endurance Model plans, haskallte and metal for firewall, motor mount— ett etc., with all screws, nuts and bolts necessary.... Beautiful appearing, sturdily- Kit Complete (less motor) ...... only designed model with an amazing climb and phenome nal glide. Out performs all 32-Inch Γ * r \ J u t I kl REGINALD DENNY'S others in its class. Overall W ing Span length 23V2 *n- Single strut W eight 11/2 oz. C O M IN G Nationwide landing gear. Full cantilever wing and tail. Full size plans and instructions, exceptional Gas Model Contest ly complete in every detail. Liberal supply finest materials. Record Low Price, Complete Kit only—...... Watch This Magazine For Full Details
OUT SOON! The Denny "BULLET"— Low Wing, Rubber Powered Speedplane— Amazing Stability! Your local dealer deserves your support. If be does not already slock our line show hint this ad and ask him to place your order for you. It costs you no more. If no dealer is near you, send TRY YOUR DEALER FIRST order direct. California customers, please include 3% Sales Tax. REGINALD DENNY INDUSTRIES. Inc. · 3751-M Hollywood Blvd. · HOLLYWOOD, CALIF.
Indoor Plane Facts Vital Suggestions on Adjusting Indoor Planes That Will Help You to Improve Your Flying Technique and Win Contests
By CARL GOLDBERG
1 \ T TH E past ten years, thousands upon the wing. 2. Stabilizer set at zero angle thousands of indoor models have been built of incidence if of the lifting type, or set and flown. In 1927, the world's record was at a slight positive angle if it is non- two minutes fifty-seven seconds. Today it cambered. The idea of a large positive stands at twenty-five and a half. Designs stabilizer was pioneered by Mr. Grant, edi have improved enormously, but that isn’t tor of Model Airplane News for many the whole story. The greatest improvement years. It was explained by him to this has taken place in the builders themselves; writer as long ago as 1929. they have gone a long distance on the road The thrust line should not be offset in to getting the most out of a ship. For many any direction. Take a look at the diagram years, leaders have acknowledged the fact representing this set-up. Ilcre are the rea that knowing how to fly a ship is more sons for it. The propeller pulls straight The author in the act of “refueling” at the important than knowing how to build it, as ahead. The wing is set at the most efficient Indianapolis 1935 contest far as getting the most duration is con lifting angle. However, since the drag of cerned. As an example, consider this: you the wing is high above the thrust line (rep may copy a ship capable of ten minutes, and resented by the motor), it will tend to stall just enough to take out the slack of the follow the plans well except for making the ship. Consequently, we put a little lift motor, and glide the ship. If it stalls or the parts rather heavy. Now, it you know on the tail, either by camber or a positive dives, DON’T MOVE TH E W IN G ! Warp how to fly it well, you can get about eight angle of incidence, in order to overcome the stabilizer, instead. In case it dives, warp minutes, and the ship will be consistent tliis stalling tendency. the stabilizer trailing edge upward; in case because it is strong. However, supposing Note, also, that the center of the root of a stall, warp the stabilizer trailing edge you built it just as light as the original, chord of the wing is directly above the downward. And another thing for you to but didn’t know how to adjust it or wind balance point, known as the center of remember—only warp a little at a lime, and it. Then you would have an awful time gravity (C. G.). This is one of the impor test it out after each change, watching getting more than three or four minutes. tant keys to proper adjustment. In testing carefully to note the effects. The reasons for this are simple. First, out a new ship of fairly conventional de Keep this up until the ship glides per so many details are vital to successful flight, sign, first set the wing in the i>osition just fectly, like the effortless flight of a gull. if any one of them is poorly taken care of, described—center of root chord above cen Don't rush things simply because you are the flight will be poor. Second, since air ter of gravity. Now wind up the propeller in a hurry to wind it up. Work slowly planes are what they are (tem and carefully until you get the peramental creations of human glide just right, and you’ll have beings who make mistakes), each u f t i less trouble afterwards. The ship one has to be coaxed, coddled, f " ^ Drag L ift should of course be making a nursed, slapped, broken, patched, ) i for large circle about forty feet in and otherwise “brought up,” be Thrust Adjustment diameter, to the left, which is the fore it will act respectably. r accepted manner for indoor mod Why is it, then, that so little \ C G. 0 els. If the circle is too large, knowledge of flying and adjusting check the offset of the rudder lias found its way into print ? (which should be about 3/16" Dozens of articles on how to build for tractors and fuselage mod this or that particular ship have Φ els) ; check for too much washin been published, but the most im on the left wing; and check dur portant end, the “inside dope” on ing the glide to see that the stabi how to FLY the ship, was usually I f stabilizer lines up then this happens tn lizer is lined up with the wing. confined to a mere sentence, or at with Wing beforehand flight} causing stall. If the circle is too small, check most a paragraph. It is to help the same things as above, except correct this general lack of that the excess washin, if any, printed information that this ar will be on the right w'ing instead ticle is written. Study it—and if of the left. some things are left out that you Φ With the circle adjusted to your would like to know about, or if satisfaction, the ship should be an idea needs further explanation, tF ready to fly. Wind the motor write in to the author or Model I f wing is tn le ft it straightens out tn about 500 turns and launch gen Airplane N ews, and another h ank' beforehand flight, preventing stall. tly into the air, letting the pro article will be presented dealing LINING UP STABILIZER Cfront views) peller revolve an instant before with what you want. you let go of the ship. The model In explaining how to handle an will climb very gently, or perhaps indoor model to get the most out 20 Motor -3 3 ------H just maintain its altitude. Keep of it. it is necessary first to im Simple Winding Method an eagle eye out for two things: agine a “perfect” adjustment. This (1) the wing tips should be level; consists, in general, of the fol (2) the stabilizer should remain lowing: 1. Wing set at a positive level in flight. Neither the wing angle of incidence, offset on the nor the stabilizer must bank in clips to the left (looking from flight. Most builders have a lot the rear), and having a shade of of stalling trouble because they washiti also on the left half of Correct Lounchmg Position (Continued on page 32)
Build This Winner OF THE Bendix Model Trophy How You Can Create a Fuselage Model That Will Win Contests for You. The Construction Is Simple The model and ihe 1936 Vincent Bendix Trophy which it won O n AUGUST 31st. 1936. at the By DONALD MERTENS into the loops on the ends of part annual Scripps-Howard Junior Air B. which are on the fuselage, and Races, held at Buffalo, New York, slide the rubber bands over the this trim model flew for 20 min fuselage and yoke as shown. To utes and 15 seconds, topping all remove the landing gear slide the flights of the day before going out rubbers forward off the yoke and of sight. unhook hooks A from part B. Several days later the model was This landing gear was designed found about 20 miles from the air by the Indianapolis fellows, and port at which the contest was held. is the most efficient landing gear Λ few minor repairs were made on I have found. It makes the model the ship and since then it has been practically crash proof. Give four flying as well as ever. coals of clear dope. First draw a set of full size drawings. Now .for the actual W ing construction of the model. The in Cut out the correct number of structions are very brief due to The "generous” propeller gives long flights ribs from stock. Pin the lead the fact that the plans are almost ing edge, trailing edge and the self-explanatory. the axles and parts A, C and D onto the spar in place on the plans, and cement struts. While drying, make the wheels the ribs on them in their proper places. Fuselage from two sheets of 1/16" laminated and Be sure to notch the trailing edge where Start by making the two sides of Μί"χ put the bearings on them. Fasten the the ribs join it: this adds much to the %” balsa, with the hcavy braces wheels to the axles. Now hook hook A strength of the wing. Crack the spar and where shown on the plans. put the dihedral in the wing. The tail plug is made w ith ______Brace the spar where cracked the rest oi the fuselage and with music wire or 1/32" cut off, to a separate piece sheet on each side of the later. Be sure to put two up spar. Sand the wing and rights here. Now join the cover it. Give it two coats two sides starting at the tail. of clear dope. Put the bulkheads and string ers in place on the nose. Propeller Bend the wire landing gear We now come to the most part B and bind and cement important part of the plane, to the correct cross brace. Cut at least to mv mind, the prop. the tail plug loose now and put Carve the prop very careful the rear hook onto it. Also ly from a block of the size carve the nose plug. Sand the shown on the plans. Carve it fuselage lightly and cover, down to about i \ " and then then give it two coats of sand it down to about clear dope. Now put on the using finer grades of sandpa hooks that hold the plugs in per till you reach No. ten place. zero. Now give it ten coats of dope, sanding lightly be Tail Surfaces tween each coat and polish Cut the ribs from 1/20" with the back of the sandpa stock, and assemble as shown per after the last coat. As on the plans. The outlines are semble onto the prop shaft cut from %" stock and Λ" and nose plug and assemble stock. Sand and cover the the free-wheeling unit. You tail surfaces, have the grain may use any type of free running parallel to the ribs. wheeling. just so that it is re Now assemble the rudder on liable. Make up a motor of to the elevator and when dry sixteen strands of 7/i" by cement onto the tail plug. Be 1/30" brown rubber 21" long sure that the elevator is set and put in the plane. with no degrees incidence. Mount the wing onto the fuselage and the landing gear Landing Gear onto the fuselage. We are Cut the two struts to the now ready to test fly it. Bal size shown on the plans, from ance the model by holding the 3/32" stock. Next bend the wing tips and slide the fuse- wire parts. Cement and bind {Continued on page 26) Piet. No. 14. The Yakima, Wash., Y.M.C.A. gas model dub. Piet. No. 15. Mr. Yuhasz, sec'y., and the Linden Gas Model (A new unit) Club’s first ship mg speed is eighteen miles per hour. It of 132 St. Marks Place. New York City, fuselage longerons and to the undersurface is notable that the landing speed usually is New York. The large bulge at the front end of the wing where it contacts the top of about 20% less than the take-off speed. of the fuselage is incorporated in order the fuselage, so that the strips of cloth on The ship weighs 5Vz pounds and climbs to secure the proper fuselage cross section the fuselage and on the wings line up with 350 to 400 feet per minute. It has made area required by Ν.Α.Λ. and I.G.M.A.A. each other. Ilaug says the idea work over a hundred flights to dale. McKenzie contest rules. The weight of the rear part beautifully and that it has cured the diffi uses it as a novelty plane and has it of the fuselage has been cut down to a culties. The wing may be moved yet equipped to carry and drop eight torpedo minimum by building it with a small cross enough friction is present to hold it rigidly bombs, a three foot parachute and a small section in the form of a boom. when in flight. six ounce plane. It lays a yellow We hear from Salem Barrack smoke screen as well, all in the at Zahle, Syria. Most of the old same flight. McKenzie says he is model builders will remember now experimenting with a fifteen Salem, who is an expert with foot silk parachute which releases ornithopters. It seems that he is from the top of the wing when still keeping up with his model the ignition is cut oft’. At this building, though far from Amer point the chute opens with a puff ica. He writes and says that he and the plane with the chute float believes gas model building and gently to earth. It is a real spec flying is the most fascinating and tacle. This is a good illustra exciting hobby, as well as being a tion of what can be done with very instructive one. As he is a gas models and the sport and ex Piet. No. 11. Stadelmeier’s gas model built to N.A.A. con very ardent model fan he would perience that the builder may en test rules hut with a boom type fuselage to reduce weight like to make a suggestion. It ap joy. pears that he thinks it is foolish John Griffin writes us from Bitely. to put a lot of gas in a model and Michigan, in the north country where watch it disappear after ten or fifteen snow and ice seem to predominate, and minutes of flying. He suggests limit sends us picture No. 9, which shows his ing the supply to ounce of fuel. parasol job on the ice on a small lake “This is only a suggestion however.” near his home. Incidentally this type Salem has probably not heard of the of landing field is excellent for take timers now being used on ships which offs, provided that no dives occur. cut off the motor after any desired The ship has a sixty-six inch wing length of run. It is now a practice and weighs only two |>ounds, twelve in the east to set the timer for forty- ounces complete. five seconds. In picture No. 10, shown on page Salem says that his glider record in No. 12, we see another gas model » ' t Syria is 37 minutes, 53 seconds. This builder, Robert C. Gould of Unity Piet. No. 10. Robert Gould and his gas job which is the same glider for which plans Road, Newport, N.H., with his job, he flies on the ice of Lake Sunapee, N. H. were published in the November issue taken during winter maneuvers. We of M odel A ir p l a n e N e w s . He says wonder if the young men keep their ships A very helpful suggestion comes from he has a pretty tough time in starting his “on ice” so that they will last longer with R. Ilaug of 20 South Barrett Avenue, motor in the slightly rarified atmosphere of out spoiling. The picture was taken just Audubon, New Jersey. lie has had 2000 feet. Up to the present time his record before the take-off on one of its several trouble with his wing slipping out of ad is 12 minutes, 47 seconds on only % ounce successful flights. Mr. Gould says that justment so he hit upon the happy idea of of fuel. Salem also expresses the hope of though the weather has been down to cementing emory cloth to the top of the being back in America soon.and contem twenty degrees he has been able plates entering many contests to get his motor running by heat when he arrives. ing it was a lighted match before he starts it. lie says : Unit News “By doing this it only requires One of the first I.G.M.A.A. gas a few turns and the propeller model exhibitions was held at will start functioning. After the Gimbel's Pittsburgh store re motor starts it runs as well as in cently. Some information con warm weather. In fact, it ac cerning this was given in the last tually runs better hecause it does issue of “Gas Lines.” However, not overheat.” we have picture No. 12, which A ship of unusual design is shows some of the models in the shown in picture No. 11. This Piet. No. 13. Rav Santee (right) and his helper restrain his exhibit and which may be of in- was built by Henry Stadelmeier Miss America from taking off (Continued on page 45) — 12— Build This Stinson Glider From Scrapwood
How You Can Make a Realistic Scale The model, made from scrapwood, ready lo fly Silhouette Model of a Famous Transport That Will Fly By JESSE DAVIDSON
B BFORE discussing the Stinson Airliner, passengers, mail and express. And so the mauds of a short-haul frequent stop line. it is necessary to know the conditions clamor set up by these inland cities stimu Speed was the prime essential and economy which produced it. Briefly, the develop lated the organization of short-haul lines to of operation an equally important factor ment of the main transcontinental routes tap these cities of their traffic thereby in too. The mechanical development to facili overshadowed the realization that feeder creasing the traffic volume of the main tate the quicker landings and take-offs, lines were necessary to keep the main arteries, like tributaries of a great river loading of passengers, mail and express, arteries flowing with passenger, mail and system. volume of the baggage compartment, motors express traffic. Cities of commercial and But it was found (Continued on industrial importance representing potential that existing ships page 3d) revenues of millions of dollars were not were not adaptable served by these cross-country lines. The primary purpose of this intensive develop ment of the transcontinental routes obvious ly was to condense space into the least amount of time in which to transport
—13— Building A Streamline Gas Model How to Build the Motor Mount, Landing The finished streamline gas model ready to go Gear, Propeller and Make Final Adjustments PART 3. By LEO WEISS T Η E motor mount is of the removable formed. No other arrangement is necessary axle combination is then soldered to the type, the first of which was designed and since the coil is hound to fit quite snugly. main strut as shown, again using a sweat applied to gas models by Mr. Charles H. Attach all the electrical leads going to joint. Here, it may he a good idea to use Grant almost four years ago. You will find the motor according to your usual custom, a light blow-torch instead of a soldering that the added convenience and strength using a good grade oil-proof wire. The two iron, providing one is available. Next file derived from this mount will more than leads that would ordinarily go to the battery the hook to shape from 3/16" steel rod. offset the extra added work in its construc should l)e soldered to the inside of fitting bend as shown, and solder to the curved tion. Care should be taken, however, to “D.” shock arm, which has already been soldered include all the mentioned parts, because This completes the mount for the present, to the main tube. This arm can be easily few are superfluous. but it would be advisable to rig up a test shaped with a hammer on a light anvil. The mount is constructed from J4" stand similar to that in the fuselage and Solder on the flange. poplar plywood, the same stock used for iron out any ‘‘bugs.’' The undercarriage struts (both are made bulkheads “A” and “B” in the fuselage. at the same time) are then filleted, each The sides may be cut out on a band or Undercarriage with two balsa blocks, 6^6" x 1J4" x 3/16". jig-saw. Cut the rectangular bulkheads and The undercarriage is of the single strut These blocks are cemented to the flange, the strengthened over the holt holes from type, cantilever in construction, with in against the main strut. Shape the front of this stock also. Clean up all these parts ternal shock absorbers. This little unit will the block so as to conform with this strut. with light sandpaper just before assembling. give beautiful landing effects, and will Cut out the rear of the blocks to the shape Casein glue and nails are used principally possess tremendous strength and shock ab of the flange and shape them so that they in this construction. Use regular nails sorbing qualities when properly constructed give strut a streamline shape. Sand the throughout. Now cut the shear gussets and adjusted. wood with fine sandpaper, cover with silk from 1/16" plywood. These are in the form Cut all the metal tubing and rods to the and tape the trailing edge. of triangles shown on the motor mount desired si/.e and drill all the shown holes tor drawing. Use l/i" nails and glue for at fitting. Extreme accuracy is required here. Fuselage Detail taching these. Carefully apply two coats While an electric drill or press would he Before cementing the battery contact to of shellac to the thoroughly dried structure. desired, it is not necessary. On the original the fuselage, solder to the contact plate one Attach Fitting “D” in its proper place model a 20c hand drill was used throughout. end of a piece of insulated wire, and the on each side of the mount and drill the Assemble the tubes exactly according to other end to the front of the left fitting holes for the motor bolts as marked. the drawing and solder. Bend the steel “A.” The wire should come through the You may now put the motor in place on axle and solder this to the brass sleeve, left hole in the engine bulkhead “A.” the motor mount, bolting it in with \ l/i ' using a sweat joint. The sleeve and the Cement the contact in place against the skin 4-36 machine screws. If you behind the rear engine bulk use any but the Hurleman head ‘*B,M touching it. motor, it is possible that it Shape the end of an old will not fit and you will have flashlight case as shown in the to do a little job of redesign drawing for this detail. From ing. The four stays to hold the a point about 2" front the gas tank in place below the cover end of the case, solder motor mount are first attached a wire 3". Solder the other end to the holes in the tank flange of this wire to one of the with l/i" 4-36 machine screws toggle switch leads. To the and nuts: Then shove the feed other toggle lead solder a wire line of the tank into the hole long. Run all this, switch in the venturi, and attach the first, through the hole for the four stays to the sides of the battery case on the bottom of mount with wood screws. the fuselage. Attach the battery When the tank is to be re case in place with two %" moved. it is now necessary wood screws into bulkhead only to remove the screws “B.” Since this is inside the holding it to the stays. fuselage, you will have to stick If the Hurleman motor is a long screw-driver through used, as on the original plane, the undercarriage holes to get the problem of mounting the at these screw's. Working from ignition unit inside the struc the inside, shove the toggle ture is simplified many times, switch through its hole in the since it will fit snugly between bottom of the fuselage and hold the sides. In any other case, it in place with the regular nut cement a piece of 1/16" hard provided with the switch. The balsa to the mount between the free end coming from the two rear bulkheads for a floor switch is to be attached to the ing. Then place the coil and right fitting “A.” condenser into the box thus (Continued on page 27)
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15 —16— Designing Your Model for Distance How the Twin Tractor Rates As a Distance Model and What the Proportions of Your Twin Pusher Model Should Be Article No. 62 By CHARLES HAMPSON GRANT Chapter No. 5
I n T H E preceding article of this other words a high lift to drag ratio; series, published in the April issue of 4. A slow propeller tip speed relative M o d el A ir p l a n e N e w s , the qualities to the plane’s flight speed, hut straight required of a distance model were enu 30° flying factors should not be sacrificed merated. Careful consideration also to get it; δ. A straight flat glide after was given to the suitability of the the power has been spent; 6. Stability single propeller tractor and the twin to a high degree in order to conserve pusher as distance fliers. However, power and fly straight. another important type of model plane exists which should be examined in Frame the light of its adaptability to distance When designing tractor models the flights. It is the twin tractor. wing span is taken as the basic feature of design. However, such is not the The Twin Tractor case in laying out the proportions of This type of ship has a combination a "distance pusher." Here the fun of the virtues and faults of the two damental element, to which everything other types, the “single" tractor and is proportional, is the length of the the “twin" pusher. Let us see what frame, because the area and span of they are and what effect they have. the wing is based on the length of the First of all, will the twin tractor frame or body of the model. There fly straight? It is obvious that the are no wing loading (dunce per square torque of the twin propellers, turning foot of wing area) specifications for in opposite directions, will be balanced distance models. Therefore, this is and will create no turning effect. How the first structural characteristic that ever, if the plane should be turned must be designed. aside from its normal straight flight The frame length of the average path will it be forced to seek its nor distance plane is from thirty-six inches mal course again as the twin pusher to forty inches. Suppose we select a does? It will have less tendency to length of thirty-six· inches for our do sr unless it possesses certain fea ship. The best type of body or frame tures of design, but on the other hand for twin pushers has proved to be the the gyroscopic effect of the twin “vec“ frame. This is formed by two “props" tend to keep the plane on a main longerons, joined at the front straight course. This cannot he de end and spread apart at the rear. The pended upo:. entirely, however, to ac FIGJ26, distance between the ends of the frame complish the desired effect because C.HGRANT longerons at the rear should be great the corrective effect generally is quite enough to allow a slight clearance moderate. between the propellers when their A very “straight flying” twin tractor of the model from the tail. The landing bearings are mounted on the rear end of may lie produced if large tip dihedral is gear also causes some drag which in turn the frame longerons. This distance de incorporated in the front wing as well as a absorbs power that cannot be applied tor pends upon the diameter of the propellers. normal dihedral of seven degrees on each flight. If the propellers are ten inches in diam half wing. The dihedral angle of each tip The twin tractor excels on the glide, as eter, a spread of ten inches is advisable. should be about thirty-five degrees to the all tractor types possess, as a rule, superior It is a requisite of our distance plane horizontal, and the length of each dihe- gliding qualities than “pushers." that its drag is low. Therefore, the longe dralled tip should equal about 12% of the Comparing the twin tractor with the rons of the frame should have a stream total wing span. twin pusher in brief terms we can say th at: line or oval cross section. A good size for This is only one means of insuring a 1. The flight efficiency of the two is about the longeron cross section is half inch wide straight flight. In conjunction with this equal. Possibly the twin pusher has a by a quarter inch deep. As we are con the fin area should be as small as possible; slight advantage. 2. The twin pusher will cerned with the aerodynamic design of the in most cases about 12% of the wing area. be able to fly straighter than the twin trac model here and not with structural details, As in the case of the speed model, the fin tor. 3. The twin tractor will glide straight- it is sufficient to say that the two frame area should be just large enough to pre cr and at a “flatter” angle than the twin sticks should he rigidly braced together. vent spinning. If these two characteristics pusher. of design arc incorporated in the twin trac After weighing the foregoing facts, the Wings—Span tor it should have unusual straight flying twin pusher type appears to have a slight The next factor to consider is the wing. qualities, though these qualities probably advantage over other types, so it has been In order to satisfy the first requirement will not be quite as evident as in the case selected as most suitable for the distance of the distance plane; i.e., a straight flight, of twin pushers with large dihedral on the model. the span of the wings must not be exces front wing. The twin tractor will run a sive. If the span of the main or rear wing close second in this respect however. Designing the Distance Plane is large each air gust striking the wing tips The efficiency or lift to drag ratio of the Now it is the problem of the designer will have a large leverage to turn the plane twin tractor, as a rule, will not be as great to lay out the proportions of the model and from its true course. Therefore, the small or at least any better than the twin pusher, its parts so that it will fulfill the require er the span can be made ami still have the because the twin tractor must possess a ments of a distance plane to the highest wing act efficiently, the straighter the plane landing gear. This should be heavy enough degree. Summarizing the general require will fly. An average value for the span to weight the nose of the model so the ments, they are: on this type of model is 75% of the length wings may be placed (over the C.G.) at a 1. A straight flight: 2. Long power (proof the frame. As the frame is thirty-six point about two-thirds of the total length peller) duration; 3. Low total drag or in (Continued on page 40) A IR W AYS HERE AND THERE What Readers Are Doing to Increase Their Knowledge of Aviation in All Parts of the World. Tell Others What You Are Doing The Air Ways Trophy Drawn by F. Gutmann will hold the trophy until another Air Ways Club member makes an official flight of greater duration, which flight must be WAYS Club members are due for special benefit of Air Ways Club members. made at any competition sponsored by the a very pleasant surprise. Sometime ago We take the greatest pleasure in announc Air Ways Club and the National Aero it was mentioned in “Air Ways” that a ing that this trophy has been officially nautic Association. The trophy will then duration trophy would be given tor the established. It is to be called the M odel be passed on to the new winner or record A ir p l a n e N e w s A ir W a y s holder. T r o p h y and will be given to the This will be in effect an international Air Ways Club member who trophy for there are Air Ways Club mem makes the greatest duration with bers in all parts of the world. Possibly any type of rubber powered mod it will lead to considerable rivalry among el. under National Aeronautic such countries as F.ngland. Australia, New Association weight rule specifica Zealand and the United States. At any tions. rate, it is about time that club members There will be no restrictions as put on their thinking caps and get busy to size or model type. At pres incorporating their latest ideas into dura ent the N.A.A. specifications for tion fliers. In order to compete for the wing loading is that the model trophy, members should prepare now to shall weigh one ounce for every make their trip to the Nationals. We fifty square inches of wing area, wonder just what type of machine will if, at any time, this specification win the contest. Members will probably is changed by the National Aero have their own ideas concerning this and nautic Association the rule in perhaps we may learn .ome interesting respect to the Air Ways Trophy facts concerning the qualifications of dif will also change. ferent types of models for duration. The The first chance that Air Ways winning model will be published in Model Club members will have to com- A ir p l a n e N e w s . l>ete for this trophy will be at the Now for a little news concerning the ac 1937 Nationals. The boy making tivities of members during the past month. We are indebted to Felix Gutmann of Piet. No. 2. Bob Jeffery's 62 m.p.h. speed model the longest duration flight at this One of the country's fastest models contest will win the trophy. He 710 West 79th Street, New York City, for our heading, which shows a Fairchild ”45” sweeping down over a hillside. Having first hand information concern ing Mr. Gutman’s work, we wish to say that he is one of the coming young aviation artists. James Mackay of Headquarter Squadron. Aircraft One, Brown Field, Quantico, Virginia, is the honor con tributor this month. Picture No. 1, which he has sent to us, shows his detail scale Curtiss P6-E. This is one of the most remarkable pieces of work that we have seen. No details have been left to the imagination. The model Piet. No. 3. A real action "shot”. Piet. No. 8. Aldo Favilla’s model in full flight, is made to a scale. Possibly some Knorowski launching a contest ship winner of the 1936 Italian '’Nationals” readers may notice that there is no belly
Piet. No. 4. Three 8 inch scale models of fine detail, by Henry Clark — 18— rnii— i I · ; ii —n-r-n i v m
Piet. No. 12. Two model fans of South Africa try out part of their "fleet” A clever piece of construction. John Pearce’s biplane "Fantom” tank. Mr. Mackay tells us that it was in the background with the model flying City, has a very fine collection of photo removed when the picture was taken. To toward the camera. There is plenty of graphs, as this is his hobby. Among these show the completeness of detail there is action here. Readers interested in design is one which he sends us, picture No. 4, even a model tool box on this plane with will notice a very peculiar thing about the which shows three models built by Paul tools, as well as a shock absorbing landing model in flight. It leans to the leit (left (Continued on page 26) gear and real steel flying and landing wires. wing low) and the nose points It appears that the “Marines have done it to the right. A keen aviation de again.” tective might say something like Many fellows have never seen a real this concerning these facts: speed job that has turned in good time "The attitude is due to the consistently. Picture No. 2 shows Bob torque reaction and gyroscopic kzktfM Jeffery’s ship, which has made a speed of effect of the propeller.” This sixty-two miles per hour. Jeffery is a mem phenomena affects the plane’s ber of the Findlay Model Aviation Club flight position because it has not — ·:·.·. of 448 Center Avenue, Findlay, Ohio, and yet, as shown in the p we are indebted to Mr. A. B. F'ruchey for gained full flight speed, this information. Mr. Fruchey remarks in the torque reaction causes Piet. No. 5. A flying scale Polish Fighter, by Joseph his letter: bank to the left and the Wherry. It’s a fine flier “All of our ships arc of original design. gyroscopic reaction noses In contests we use a launching platform it to the right. Readers seven inches high. Ships must be off the who have flown models to ground at the starting line and must fly any extent will lx; ac over the finish line. We always fly either quainted with this peculiar a 176 or 200 foot course. We let the tail ity of single propeller mod boom come loose when the power is ex els before they have gained hausted so the ship will get down in one full headway. piece. This is a sloppy way to land but It appears that Henry effective.” Clark of 46 Fort Washing Piet. No. 7. Bob Chatelain's and Bob Jeffery’s models. Several hints are given in respect to ton Avenue, New York They both flew out of sight to parts unknown speed model design. Mr. Fruchey says that they have found that heavy wing load ings have not proved to he as successful as very light wing loadings. In other words, the ship must be light but the air foil very flat or streamlined. The area of the wing should not be cut down to a very low value. If the model is heavy and the wing area small the ship has difficulty in getting off the ground, and when it lands —well, those of you with an imagination can picture what happens when the model is travelling at sixty miles per hour. Frank Knorowski of 24 Engle Street, Glen Lyon, Pa., has been kind enough to send us a very good picture of his model Piet. No. 6. Stephen Kowalik and his Piet. No. 13. One of W. B. Macklay’s dur taking off, picture No. 3. He is shown 6 ft. Dupont Albatross II model ation fuselage models, a beautiful job
' JR plans'Tiave-i Ϊ * pa per and then place. T)k- of ha La 1 16" sq. T he V drawn ^■■e οι 1 16" -heel balsa. Make* ■ rib .'ize. Cement the ribs int^arjjSSjP H ^K fand allow the wing to dry thor the ribs are drying the can carve(l from a piece balsa and are thick or νά&. „ ■ -et into position w i t h e — .-C.r. , Piet. No. 9. An overgrown glider of 10 ft. span built by Alfred Model fliers sM'hen the wincr-Maryborough con Van Wymersch est, held in Queenr *iu, Australia — 19—
The finished model is just like its big brother Realistic yet stable because of the high wing Build , and Fly the Westland by >. 4ERT H A R R I S ^ Cooperation Plane T h is Westland A39/34 is non-wa te r p roof cel 1 opha n e. probably the fastest and the IIow You Can Create a Real Miniature of a When the rest of the model most useful Army Coopera New British Fighter With Unusual Flying has been finished and papered tion machine that the British and the water is applied to R.A.F. has ever possessed. It Qualities shrink the paper, the cello is equipped with Handley phane will also tighten up Page slots-and daps to enable it to get into and give a much neater appearance than and out small Oh as th< OE ARLN NEWS AIRPLANE MODEL b i t MAY 24 1937 MODEL AIRPLANE NEWS If you want ...in Model Airplanes, or The photo at the right shows the Valley City Station on the Tippecanoe, Tuckahoe and Tehachapt line (T. T. ο T. to yon) the line on which all trains run, subsidiary of the great 3/16” scale C-D lines with the to build the Rep Hiawatha Streamliner thundering through, as Valley City is not a stop station for it, the tail end of a Pennsylvania freight pulling through, a Chesa peake and Ohio Pacific type, the Locomotive that draws the famous "George Washington' train, lazily cruising after a run, down to the roundhouse, the "Real Thing" Pennsylvania Switcher with several cars having just left the scene, being somewhat isolated, it was elim inated from the above layout. Its Here At Last! AERONCA C-3 SPORT Easy (or beginners, span 27" Sue. 20 R EP STIN SO N RELIANT itcautiful taper wins desisn model. Extremely graceful in flight ami very stable Suggested coloring: cream and green. Dry Kit K lili, complete (except liquid»i. c r — postfree. only...... The New SEVERSKY FIGHTER, P-35 MODEL 77 of these unuguail.v bulky, hut unbelievably beautiful planes have ,u»t been ordeted by the V. S. Army because of six high ‘peed and super performam«·. Span 21v. bcautitu'.ly colored. L>l;.ii· fuselage, ydluw wing* and tall. Very ι-...eh trimmed with red stripe an.I white outline. Landing gr.u may be ex tended or retracted for display in uny position. Sup*r com OR EVERYONE! plete !n every way. but DRV. CO CC K it SE-81. post free, only...... ■d Gage” is Radical Departure Dwarf Dry Kit D-«l ...... SI.10 For Realism in a Toy Train Layout ruly American Scale and Gage! Tiiis C-D size is the best size car rolling stock ycl de signed for converting toy 0-Gauge material to a far more realistic layout. .Simply remove trucks and couplers from d Adore Practical! Easier Built! your toy rat·, and presto! You hare cars that really "lit in’· with all your other toy rolling stock. I t ’* the nearest thing possible to authenticity on a tin track toy train layout! Extremely easy to build, and the cO*t per car ri model railroader may now have even only one locomotive and Just Ever Popular CURTIS-HAWK P6E a few cars operating while he may enjoy a 'very' complete line" Λ model a* beautiful ss any ever built for the most exacting atmosphere at a minimum of expense. with rolling stock authentic exhibition requirement», ye:, it u capable of vt-iy good In appearance, yet easily and quickly made. flights ot a fast elip. Suggested coloring, yellow and olive Thereto»t, oolote deciding that Model Railroading hold? no dial» wills the beautiful Hawk color striping of black and Interest for you or oven iefore deciding that C-D is "all wet” white, characteristic of the Self ridge Field Squadron. Fuse- with its new scale. i«r Hu· few cents It costs—order a tew kits lige owl and C.S. Insignia comes ready to apply, span and build them. We assure you many enjoyable hour*, uni an fvpriieni-π you will not fotget for a long time. Try it! Thou Kh...... _...... $2.50 sands ot dealers are already ordering these kit* if your dealer Dwarf dry kit D-21...... 950 hasn't them.—send direct to us. Don’t delay—order today. WHAT C-D REP RAILROAD (DRY) Send 15c At Once for C-D’s 64 ! KITS CONTAIN 1 1. All locomotive CO»·», tender suit! car side·· tups sind ends completely printed out where possible in original colors, only I Page Catalog and its 32 Page j timcliing up neCessai-y. g. Wheels supplied tumed. requiring only hand work U> com plete. They all roll, and locomotive mechanism work*. Supplement now ready! :i. Necessary bulkheads. truck side tniisies. etc., printed out. 4. AU nocOSSiwy strips, blocks and pieces to Complete the entire • Thousands have already been mailed out—and every day I locomotive tenders or cars. 5. All (ill in materials to simulate the meial or solid wood I bring* another tremendous rush of request.·, Don’t'delay | cunsiructien or the prototype. ■ it's the greatest model and homecraft catalog ever i>f- · rt. Alt wire. Ixir.d paper, seivws, escutcheon pins, axles in I :cred---heller, fuller and much mole complete than our 1 cluded. etc., etc., etc. I 1st Edition. which was completely gone within 611 day* J 7. And last, hut moat important or all. included in each kit J ot the time It came off tin· press. Get this great new I is a completely detailed full sized, copyrighted authentic Hep drawing, enabling you to make each model most easily by the I > atalog at one.—packed with flying models, «.lid models. , o u s v iik h Ic I design method» -worked otit— far more easily made . gas models, parts and supplier. Il.lt.'» and supplies: ship | than airplanes—even the ••Complicated looking" locomotives. | models; thousands of liny Hem* never before assembled i ■ between two covers. Well illustrated. No inodelbttlkter I I ran afford lo be without it. Rush 15c with your name and | Note the Low Prices on this New (D ry ) C -D 3-16'v ■ address light away in help cover packing and mailing. 1 Scale Model Railroad Equipment—Send Your • and we'll send your copies. Order Todayl I C-Drs Complete RR Info Included | Average overall si·/*·* I-ooor.iOtive*. 12"—17"; ra?scngcr Car» 15": Box Cars. »·': heights J ' i ‘ ««r o v e r . V 1 a s I’cun. Switching Locomotive Od.-li. and tender ...... KL-l ·£? C A O Pacific nt-ft-U. l..«nmotivc and tender ...... K k -2 · § » lliautiiiia Locomotive 14-4-2; & tender...... Kb-1 .»■> DEALERS:—Higgrjt. broadcast sales opportunities yet of H ia w a th a Kxpross.Tap Car ...... KS·- . Build This Winner of The Bendix as last year. It is easier to ask the ‘boss’ SCALE MODEL PLANS Model Trophy for a few days off then. I like the last (Continued from page 9) week in July.” A s5 —Value for *122 »» lage so that the model is slightly nose PORTFOLIO of 15 authentically detailed, plana— heavy. Now test the model the same as MODEL NEWS FROM OTHER full size and instructions for flying models. any other model. When the model is COUNTRIES 21" Boeing P-26-A 12" Bellanca Air Bus finely adjusted, you can wind it to full ( % " scale) 18" Condor Bomber Italy 24" British S.E.S. 18" Boeing F4B4 power and get ready for a good long 24” Fokker Triplane 18" Boeing P-12 chase. By careful winding you can get We have a very interesting contribution 12" Albatross 18” Curtiss A-8 from Italy. Mr. Enrico Barzetti of Viale iV /i” Bristol Fighter 12" Hawker Fury 750 winds in this motor, I have had 850 ( % " scale) 12" Hawk P-&-E winds in mine; but do not advise a be Reg. Margherita 83, Ardcnza, Livorno, 24" Curtiss Army Hawk 12·' Sopwith Camel Italy, has sent us picture No. 8, which •VC25'' * Λ.- Cee DBee (Γ* scale) ginner to try to get this many. With the 850 winds the prop run was 97 seconds, shows Aldo Favilla’s stick model in full An ideal selection for individual or group during which the model had an excep flight at the 1936 national contest It was tionally steep climb. the winner in the tube category. He also NATIONAL QUALITY sends us an interesting resume of model SUPPLIES flying activities in Italy. It is as follows : At Wholesale net prices to Air Ways “Flying models is a sport that Fascist! Dealers, Clubs, and Schools. (Continued from page 19) boys follow seriously and with great en thusiasm. In the aeromocleller schools the MINIMUM ORDER $5.00 Zakim. They are a Hawk F11C-2, Lock R.N.A.U. (Royal National Aeronautical Balsa Strip· Colored Dope heed Orion and the Sikorsky S-43. All 3 6 ” P e r W h e e ls A xemi-Blo»» dope. Union), instituted in all cities, the boys I.e n jjU is ) (M) P e r D oz. Colon,: Black. are eight inches in wing spread. Even 1 / 10x 1 · 10..8 .1 3 learn theory of flight and gain experience 1 / 10x 1/8 ...... 2 3 though they are small, details have not been 1/10x3/16.. .30 Olive, Gray. Yel 1 / 1 0 X 1 /4 ...... 4 ; C e llu lo id W h e e l· low, Khaki. through building simple models. 1 /1 0 X 1 / 2 ...... 8 5 P e r D o z. P e r DOZ. neglected. 3/32x3/32.. .35 Mi o z . b o l t l e s S . 4 8 “Only after they have grown older, be 1 / 0x 1 ;* ...... 3 5 iK:r:z: 1 oz. bottle» ...... 7 0 Picture No. 5 shows a very fine flying 1 / 8 x 3 / 1 0 ...... 50 l W .... 2 oz. bottle».. 1 .2 0 come expert and have been active in many 1 / 8x 1 / 4 ...... 0 ” 1 Pint Tins scale model built by Joseph H. Wherry of 1 / 8x 1 .'2...... 00 competitions, do they build different models 3/10x3/10. -00 8 North 9th Avenue, Yakima, Washington. Aluminum Wheel» Gold & Silver I / 4x1 4 ...... 8 5 D o p e according to their own ideas. 3. 8x3/8 ...2.00 P e r D oz. Perhaps the reason we like it so is that 8alM Sheet· Por Do*. 1 oz. 3 0 ” P er B o ttle ...... $ . 7 0 it was built from plans in Model Airplane “Every year the Aeronautic Union pub ...... 5 0 A c e to n e N e w s . lishes a national resume of model activi ra sa ..... Rubber Motors P e r D oz. At any rate, Wherry has done full 1 oz. Bottle 8.45 1 / 0S 2..:::::::: > 2 Por Sitoln (225·) 2 oz. Bottles .75 justice to the plans. ties, with a list of the Italian model build 3 / 1 0 x 2 ...... -OO 1 / 3 2 " » q ...... * . 2 5 1 Pint Tin» 1 4 x 2 ...... 1 -2 0 . 0 4 5 " ...... 3 5 E a ...... 40 Stephen Kowalik lives at 412 South ers who have participated in contests and Balsa Planks 1 / 1 0 " s q ...... 4 5 1 Quart Tin» 3 0 ” H er 1/32x1/10.. .35 E a ...... 7 5 L en g th s 10 1/32X3/32.. .45 Heald Street, Wilmington, Delaware. details of the models of every type which 1 /2 x 1 / 2 ------8 .27 1 .3 2 X 1 / K ...... 5 5 Aluminum Cowl* were used. Many prizes are given, some 1 /2 X 1 ...... 0 0 1/32x3/10.. .1») (Anti-Drag) Readers will recall that Wilmington is one 1 /2 X 2 ...... OO 1/10X3/16.. .75 P e r 4 3 / 4 x 3 / 4 ...... 0O 1 " ...... $ . 2 5 of the glider centers of the United States, times money and sometimes medals. There ...... 75 Japan Ti*»ue 1141" ...... 3 5 1 * 2 ...... E ach .1 5 W hite. 20MjX24" 2" ...... 30 so it is natural that Kowalik has become is great competition between cities to see P e r ifc ...... * . 1 5 2 1 /V ' ...... 0 5 ."23 P e r l O O ...... 1 -0 0 3 " ...... 7 0 interested in this sixirt. Picture No. 6 who will win the beautiful trophy offered. 2 X 4 ...... Koch .4.» P e r 5 0 0 ...... 4 . 0 0 3 b V · ...... 8 0 2 x 0 ...... E ach .0 3 Colors: Red. Blue. 4 " .9 0 shows him with his six foot model of the “As a rule beginners build gliders so For 3" width Green. Yellow. Sheet Aluminum d o u b le P ric e o* Orange, Black. 2" w id th P e r S h e e t Dupont Albatross II, with which Mr. that they will learn how to adjust the Brown. (New-Ju*t G a u g e 2 6 Balsa Machine arrived—True Ol Cut Propetlors i v e D ra b ) W"X 12 " 1 5 Richard Dupont set the distance record in model correctly tor different types of P itc h _ l “5Vr G a u g e 2 8 1 .3 *>*i 2 0 1 /a " x 2 4 " (P'xl 2" 12 1935. This little model is a duplicate of flights. This entails understanding of the 5 ” ...... 5 · 1 ■* P e r 1 2 ...... 8 . 1 » G a u g e 3 0 ft"...... 2 0 Per 100 .1.35 0 ” X l 2 " 11 its big brother and has flown out of sight ...... 3 8 P e r 5 0 0 ...... 4 . 5 0 G a u g e 3 4 relation of the center of gravity, center of 1 0 " ...... 3 0 0 " x l 2 " ...... 0 9 on several occasions. He was fortunate in pressure and the attitude of the tail planes. 1 ...... 8 0 N e w S ilv e r Seamless Alum Hardwood . Hand- S h e e t 2 0 x 2 4 " . P e r inum Tubing Carved Finished Doz. 2 5. Per 100 having it returned. Later when they are more experienced, PropcIIOrS 1 /Π 4" W all $ 1 . 8 5 . P e r 10 F t . Picture No. 7 shows what vour editor builders make machines with rubber motors H a rd 1 / 1 0 " Ο . Γ». ilia . W ood Superfine TiMue I - lg t* ...... 8 .4 5 chooses to call “the heavenly twins.” The 5 " Extra light and 3/32" O. D. dla. using a tube for the fuselage. The tube is ...... 0 » tough. C ream I ' ...... 8 - 5 5 ...... only. Shoot 20x 14" 0. D. dla. models are practically identical, one built made of sheet maple 1/32" thick. By H - ...... 1 .0 0 n o " , 0 '· ...... 1 .2 5 1 ' lg t» ...... 8 . 0 0 5/32" Ο. I), dla. by Bob Jeffery and the other by Bob Chate- means of such a machine something is 1 2 " ...... J - 3 0 1 ' E ft* ...... 8 - 8 0 B a s s W ood Bamboo Paper 1/32" Wall lain of 618 McConnell Street, Findlay, learned of the reaction of the propeller P e r 1 0 25x10 Mi". Per 1/8x1/4x40 .10 3/10" O. D. dla. 1 . 0 x 1 x 4 0 ...... 4 0 D o z . 2 5 c . 1 ' lg t* ...... S .9 0 Ohio. Chatelain tells us that they were on the model. 1/4 " O . O. d la . Birch Dowel» Balsa Veneer P e r 1 ' l e t s ...... * - 9 0 both at the Detroit Nationals but failed in Size: 10x15" 5/10" O. D. dla. “The next step is to build scale models R o u n d P e r D o z ...... S . 5 0 1 ' lg t* ...... 8 1 . 2 0 >/h x 1 8 ...... S . 1 0 the contest. Later they lost both of them P e r 2 5 ...... 1 . 0 0 *fc*' O . D . d ia . with fuselages and with rubber or gas 3 / 1 0 x 1 8 ...... 12 1 ' l g t » ...... * 1 . 5 0 1 / 4 x 1 8 ...... 13 J a p a n S ilk on the same day; Chatelain at two minutes B a m b o o M o d el P in s power. As a rule Italian model builders P e r 1 0 · directly overhead and Jeffery at thirteen 1 / 1 6 x 1 / 1 0 _ do not build reproductions or scale models x l l ...... S - 1 G Transparent Sheet Model Nails minutes. 1 / 1 0 x 1 / 4 12 pKK. .0 3 lx of original large airplanes because they x l 3 ...... 4 0 C e llu lo id We have a very interesting comment Round Reed P e r 6 W' tong ..8.40 think an airplane and a model have very Per size: 3x8'·....*. 18 Prop Hangers 5 0 F e e t s i z e : 12MzX P e r 2 5 from Leonard W. Meacham of 179 West- different characteristics.” 1 /3 2 · · ...... 8 .1 5 1 0 " ...... 8 3 Small ...... 8-15 1 / 1 6 " ...... 1 8 M e d iu m ...... i s ford Avenue, Springfield, Mass. From 3 / 3 2 " 2 4 Corrugated Paper C a rg o ...... 2 5 From the last paragraph it is evident I A " ...... 2 4 W hite and yellow. what he says we judge that he is one of N o s e P lu g s Size: 4x5". Prop Shaft» that Italian model builders have fully T e r P o x . P e r n o z ...... 8 .1 4 P e r 2 5 Model Airplane N ews oldest readers. He 3 1 0 ...... 8 ·!<> Per Grow;....1.25 Small No. 6 *-12 realized a fact of which Americans are not 1 / 2 ...... 1 2 Large NO. 10 .15 w rites: 3 / 4 ...... 1 5 National Cement Rear Hooks always aware. Celluloid Motors T e r D o z . S m a ll p e r 2 5 $ .1 2 “If you look in your files I believe you P e r 3 1 act...... 8 .5 5 Larxe per 23 .15 1 1 A "...... 3 .2 3 2 o z ...... 1.0 0 2 " ...... 4 0 1 Pint Tine. Brass Washers will find I subscribed to Model Airplane 3 " ...... 7 3 E a ...... 4 5 P e r 1 0 0 Belgium Celluloid Motor 1 Quart Tin& XV* d la . News from the very first issue. I now a n d C o w l E* ...... 7 5 pin hole. ...S. 10 P e r 3 1 Gallon Tine V4 " d la . have all of the issues up to date.” The building of large size gas models 1 M i" ...... 8 - 3 5 Β»...... 2.00 1/ 10" hole .15 3 " ...... 7 0 E y e le ts In one of our past issues we asked read has prompted Alfred Van Wymersch of Balsa Wood Paper Cement Small 3/32x W h e e ls Prices Same As 1/10 .8.12 ers to let us know if they like the idea 14 rue Berkendael, Forest, Brux, Belgium, P e r D o * . A b o v e l.,n gc 9/10X a v & 1 1 0 Clear Dope 3 /3 2 " ...... 15 to build a correspondingly large glider. 1 1 /4 x 1 % . 1 7 of the Nationals being held later in the 1S/4X2.T...... 2 0 Banana Oil Cup .W ashers 2 L « " .. „ ...... 0O Same Prices Λ» P e r 1 0 0 summer. We have an answer from a con Picture No. 9 shows one of three meters 3 " ? ...... 7 3 C e m e n t 3 / 1 0 " ...... S . 2 0 testant who ought to know considerable spread, which he has made recently entire ly out of balsa. He says that it has an Dealers—Agents:—Cash Send 5c for National’s about national events as he has attended in on National Models New Spring Bulletin II- most of them. He is Jim Cahill of 1419 extremely flat glide and that he intends to and Supplies. Write ter lustrating fleet of more dealer discounts full than 50 models . . . and North Gale, Indianapolis, Indiana. Jim is fly it soon for a record, as soon as a good complete supply list details. very much in favor of the idea and also location for the flight can be obtained. says: This glider is double the size of another NATIONAL MODEL AIRCRAFT “I believe it would be a good idea to glider which he designed and which flew & SUPPLY CO. arrange the contest close to the end of the out of sight after a duration of ten minutes. 25 Avenue E Dept. A-7D New Rochelle. N. Y. week instead of in the middle of the week (Continued on page 43) MAY MODEL AIRPLANE NEWS -----^ 1937 27 Building A Streamline Gas Model straight pins through the last bulkhead. (Continued from page 14) The pins are clinched on the inside rim of Cut out two beam supports for fitting the bulkhead, and the ends of the strip are "C.” They appear on the same drawing with joined on the bottom center line. SCIENTIFIC the engine bulkheads. Shellac them thor The wing fillet, which in this case acts CAS MODEL KITS oughly and after dried, put on fitting “C”. as a wing mounting, is next constructed. Bend over the lower flange of this fitting, Cut the two pieces of hard balsa, 9" x 1" x thus holding it securely in place. Then drill £4" (No. 3), and shape the bottom of these the lA" hole in the plywood, using the holes pieces to fit on the fuselage exactly as shown in the fitting as guides. Place the beam in the drawings. With this as a basis, cut out supports between bulkheads “A” and “B” block No. 4, first in plan form, then shaping as shown in their end view on the bulkhead the bottom to fit the fuselage curve. Ce drawing. The concave side should be down. ment this in place immediately behind Nail them in place. blocks No. 3. The next to go on is block Cut the clamp bar from brass tube, No. 1, which is also shaped in plan before flatten as shown and drill the ends for a cementing. Fit to the fuselage curve as B FT. WINGSPAN—56' LONG 6-32 tap. Use the tap when you are sure block No. 4 and leave as is. Now cement GUARANTEED TO FLY! Complete Kit contains every Hern that the holes are the right distance apart. blocks No. 2 in their places as shown. necessary to build the model, with liberal quantities of nil materials. Cut two diam. holes in the silked Following the plan and using the gen FINISHED HARDWOOD I'ROPEL- I.KR -334 in. 1' N K V Μ Λ T 1 C skin of the fuselage directly over the holes eral idea given from the pictures, shape the WHEELS—I lie wily complete low- priecd model with all quality fea in the beam supports. Through these holes, fillets with a knife. Be careful not to make tures! Cuiuplete Kit only you may reach the tightening screws for the edges too thin. Complete shaping with the motor mount. The screws are 6-32, rough sandpaper without a block. Finish long. Two are required. Push these off with fine sandpaper and cover neatly into their holes in the beams and attach the with silk. clamp bar to them by a few turns of each Cut out and shape a tailskid from pine. screw with a screwdriver through the Yz" Insert a piece of 1/16" steel rod as a run holes. To attach the motor mount, merely ner as shown. Cement the tailskid to the shove it into the fuselage until fittings “A” skin in the position shown, directly below and “D” coincide, and tighten the screws bulkhead “V”. all the way down. It is not necessary to Cowling use all your strength in tightening these, screws, as there should be some resiliency. As can be seen from the drawings, the MISS AMERICA DeLUXE l)o not allow too much, however. A few cowling is constructed from a number of 7 ft. WINGSPAN—ST LONG longitudinal “lifts,” which, when cut out Winner of tirand Kim 1'rlze at the Metropolitan Gas turns of each screw is sufficient to remove .Model Meet at Hadley Airport A consistent winner in a l l accurately will eliminate all but a very c o n te s ts entered. Kit Is 100%· Complete. In- CQ CQ the mount. eluding FINISHED HARDWOOD PRO- , Z.'ZT. Cut two pieces of 3/16" steel rod 2V\H small amount of carving. PBLLKE a n d PNEI MATIC RI DKER „c o X tZ Z ' W H E E L S ...... mid Direct. long and shove these into the holes drilled Cut all the lifts from 1" balsa of any for them in the bulkheads. Cement is suf convenient grade (soft balsa will be easier ficient to hold these in place, since there is to handle). When they arc cut with a jig no tendency for them to be pulled out when saw, mark on each of them the position of the shock cord is wound around them. the next bulkhead down. These are deter Cut four pieces of hard balsa %” x mined by the outline of the blackened por long enough to fit snugly between bulk tions on each lift. Starting with lift No. heads “A” and “B”. These should be ce 8 cement the lifts together, holding them mented to the inside*of the skin, lining the together while drying. When both sides of hatch holes on the top and bottom, quite the cowling are completed (don’t forget that flush to the edges. Cut the guides to size the lifts are opposite for each side) lay and shape from .006 sheet brass. The %” them aside to dry quite thoroughly. Do not touch the cowling until everything else on holes should be punched with a scribe or [Y (L01tt‘l7: some similar tool. Λ slit is then cut in the the plane is completed. 0HLS50N>!8~ [BROWN JR.'21n skin so that the guide may be inserted. Push When you get back to its construction, the guides into these slits and cement the you can carve the outside with a knife and guides to them on the inside. The punched rough sandpaper. It should not be neces ALL ENGINES SOLD WITH A DOUBLE GUARANTEE holes will prevent the guides from pulling sary to use a template here because you A Tru-P itth Propeller. Included Without Charge . 1 9 i 7 C ATALOGS- out. Cut two hatch covers from the same need only to cut a smooth flowing curve Listing Kits, β » Mod els. Parts aixl Supplies. brass, making a tight fit so that they will between each lift, until all traces of cor Most complete catalog America—Kit* anda pull out only when the fingers are pressed ners are removed. Mark the opening holes j u s t o u t Supplies includ ing GAS MODELS. from the templates on the front of the Send for your Limited against them and pulled. copy today. Quantity From .006 brass, cut a strip W wide to cowling and cut them out with a knife and cover the break in the fuselage. This is a gouge. Before silking, pin pieces of balsa G A S MODEL SUPPLIES STRIP BALSA attached to the front part of the fuselage by to each side from lift No. 1 to lift No. 8. 5 ft. Lengths v**y* ....$.03 TRU-PITCM GAS PROPS: EFFICIENT. V * x y i ...... 0 4 ACCURATE. BALANCED V a x i- i ...... 0 6 The lowest <>rire FOR the past six months we have been working on Plans and Speci fications of the world-famous “Miss PHILADELPHIA” Gas Model, under the personal super vision of Mr. Maxwell B. Bassett. W e have spared no expense to bring the model builder the finest in gas powered planes. Every de tail has been duplicated exactly as employed on the original model. The “ Miss PHILADELPHIA” won FIRST PLACE in every CONTEST entered in 1936— a record in it self!! Now you, too, can have this championship model. Here is the HERE AT LAST -Ml EXACT DUPLICATEof MAXWELL BASSETT S CONTEST WINNING GAS POWERED 8 FT. MODEL MISS YES SIR!! Here PHILADELPHU is the Exact Model that has won every major gas model contest in recent years!!! Read the following partial list of records made by Maxwell Bassett with this sensational Model: OCTOBER 1936— 1st Place J. G. M. A. A. Meet (For Consist The “Miss PHILADELPHIA" Gas Model has won 1st Place ency and Endurance) 1/16 oz. Fuel/lb. Time: 18 Minutes in every contest entered, with the exception of the 1935 Na OCTOBER 1936—1st Prize Winner in First Payload Contest tionals at St. Louis, when engine trouble developed. Despite (At Hadley Airport, New Brunswick, N.J.) this handicap, the model showed a wonderful performance with JUNE 1936— 1st Place I. G. M. A. A. Semi-Annual Contest a flight of 37 minutes with only 1 Vi minutes engine run, tak (Present Holder of I. G. M. A. A. Gold Trophy) 1/16 oz. ing 3rd Place as listed here. Fuel/lb. 5/16 oz. Fuel in Tank. Time: 24 Minutes. AUGUST 1935— 1st Place National Junior Birdmen Gas Model The original “Miss PHILADEPHIA” has flown more than Contest «/e oz. Fucl/lb. % oz. Fuel in Tank. Time: 18 1,000 times, with almost 100 hours to its credit. This model Minutes, Establishing New World's Record. is still in good flying condition. It is powered with a Brown Jr. JUNE 1935— 3rd Place “Nationals" St. Louis. Time: 37 Min- engine, but you can install either the Brown Jr., Baby Cyclone utes with 1 Vi Minutes Engine Run. “D” or the Ohlsson, or any reliable engine on the market, and (All the above records were made without assistance of thermal currents get perfect performances with the model you build. which usually contribute to winning flights.) CAS MODEL MAXWELL BASSETT'S MODEL AIRPLANE NEWS MAY ------1937 29 YES, FELLOWS/ SCIENTIFIC SURE HAS MADE A SWELL KIT OF MY "MISSPHILADELPHI/i'GAS MODEL. THE PLANS WERE DRAWN DIRECTLY FROM MY ORIGINAL MODEL SO THAT THE KIT WILL BUILD AN EXACT REPRODUCTION. THIS KIT CERTAIN/‘ IS A HONEY/ 8 ft. WINGSPAN :: 57 in. LONG WEIGHT (less motor) 3# lbs. FLYS FOR ONE HOUR ON AN OUNCE OF FUEL Gliding Angle: App. 25 to 1 Climb: App. 300 ft. per Minute — SPECIAL FEA TURES — STABILITY: High wing improves stability 60% FLEXIBLE WING SUPPORTS: Should end of wing hit any obstacle on landing, the flexible wing supports eliminate any possible damage. CRASH PROOF LANDING GEAR: Landing gear is attached to fuselage with bolts which allow it to pivot. Rubber bands hold the “ V " Struts together at axle and provide the “ give” required when landing. Should the landing gear become twisted in an SPECIAL COMBINATION OFFERS! exceptionally hard landing, it is easily straightened again as all Special Combination Offer No. 1 parts are movable. “Mias Philadelphia” Kit...... $9. BEAUTY: High-set wing adds grace and beauty to the model, Brown Jr. Motor...... 21 which is colored blue with yellow scallops on the wing, yellow Tru-Pitch Propeller...... 1.! and blue fuselage. REGULAR VALUE ...... !$33 OTHER FEATURES: Detachable wing. Adjustable Rudder Con trol. Alum inum cowl hatch swings open for easy access to motor. Special Combination Offer No. 2 "Miss Philadelphia" Kit...... $9.95 A L L FO R Ohlsson Motor ...... 18.50 Tru-Pitch Propeller...... 1.95 $26.00 REGULAR VALUE.______$30.40 COMPLETE KIT— _____ POSTPAID Special Combination Offer No. 3 ] with all items as listed below wr POSTPAID "Miss Philadelphia" Kit... Baby Cyclone "D” Motor, Ask Your Dealer—If He Has Not Yet LESS Tru-Pitch Propeller...... — | A L L FO P Ordered His Stock—Send Your Order MOTOR R EG U LA R V A L U E ...... $29« Ί $2 F A Direct 29.15 « J POc AID “ MISS PHILADELPHIA” is 100% Complete Including Ready Shaped Leading and Trailing Edges with Notches Cut for Ribs; Special Design, Finished 14" Hardwood Propeller. 1 Pr. of Pneumatic Rubber Wheels. Ready Made Balsa Wood Ribs with Notches for Spars. Complete printed balsa including all bulkheads, rudder sections, etc.; all strip wood of finest quality accurately cut to size, and ample quantity to complete model; bamboo covering paper; large amounts of gas model cement and special yellow and blue gas model dope; streamline tail wheel; aluminum plates to make adjustable motor mount to fit any motor; alu minum batch printed on the correct gauge sheet aluminum, complete set of hardware such as knife, switch, 2 sets of jacks and plugs for attaching booster batteries, nuts, bolts, machine and wood screws, tough landing gear wire, threaded, and complete with 4 nuts, sheet metal, battery wire, washers, etc.; finest strip spruce for parts needing added strength; com plete assortment of numerals, lettering, and “Miss Philadelphia'’ insignia printed in color on gummed paper; and 3 Jumbo full-size detailed plans giving every bit of information needed for building, along with photo graphs, diagrams, instructions for building and flying, etc. Unquestionably the finest Gas Model Kit ever offered by anyone!! Send 10c for New Jum bo Catalogue of Model Kits, Gas Model K its, Motors, and Supplies Note the convenience of Motor SCIENTIFIC MODEL AIRPLANE COMPANY housing, as shown above, with 218-220 MA-5 Market Street “CAS MODEL HEADQUARTERS“ aluminum cowling which swings In France: E. Kruger & Co.. 9 Rue St. Sohasticn. Paris Newark, N. i . In England: H. & 5. Norman. 4β Derby Rd., Kfrkhimi, Prestwich, up to permit easy access to In Australia: Swift Model Aircraft. ISO Adelaide St.. Brisbane. Queensland. m o to r. In South Africa: Stratosphere Model Aircraft Supplies, P.O. Box 324Θ, Johann*«burfl. MAY 30 1937 MODEL AIRPLANE NEWS This will prevent distortion. Now silk both prop shaft. Usually this is W diam. In halves. shaping the blade (notice that a left-handed Hollow out the insides of the cowling, prop is used) a wood rasp will be found to again using the joints between the lifts as be a great convenience. Note that there is guides. This method will give a wall uni no undercamber on the typical section, but formly 3/32" thick. Taper to a sharp edge tends more toward a streamline section. at the rear of the cowling. Coat die insides Nicely finished propellers add much to with a coat of dope, a coat of shellac and the appearance of the finished ship. Finish a coat of ordinary gray or black paint. off with a good grade wood filler, follow On the original job, tape hinges were ing with many coats of white lacquer, used, running a piece of tape inside and out sanded lightly between coats. the length of the cowl over the joint be tween tiie two halves. Small brass hinges Assembling WHITFIELD’S may be substituted if you wish. In this The first job, of course, is to attach the case, imbed them in the balsa wall on each two sections of the fuselage. Use the JAPANESE TISSUE side and drive pins through the wall and amount of rubber noted before and tie in the hinges to prevent them from being a very secure knot. These covers are at pulled out. Tape the following portions tached with small dress snaps. In position, of the cowl in the following sequence: they lend a natty appearance to the fuselage. Next comes the undercarriage. Slide the 1. The air inlet, folding the tape over shock arm through the undercarriage hole; the edge; this may have to be done in T lf IN AMD STRONG the bearing should slide in quite nicely to two pieces on each half. fit snugly between the bulkheads. Shove a 2. The rear of the cowling to protect the 3/16" wood dowel through bulkhead, the shape edge. Do not fold over the edge. bearing, and bulkhead “B”. By no means Reference from Pennsylvania: 3. Tape over each of the joints between should anything but wood be used. To wind “Wc were pleased with the last the lifts. Do not lap these pieces of order of tissue we received from the shock absorbers, slide open the hatch you and think it is the very best tape with any other taped portions. obtainable.” covers. The shock cord consists of about 4. Border the top and bottom of the a foot and a half of 3/16" flat rubber. It cowling on each side. Do not fold or should be wound fairly tightly, but do not lap over. stretch it to more than twice its length in BAM-BOO Attach now fitting “F” to the front engine winding. This is important because if the bulkhead “A’\ The lower one will have to cord is wound too tightly, a strut might be TISSUE be bent over as shown in the bulkhead strained in a ‘‘hot” landing. If properly JAP-FIBRE paper superior drawing. The third of fitting “F” is at adjusted, the undercarriage will absorb the to silk for G A S O L IN E tached to the engine mount by one of the shock from the hardest landing the ship POWERED MODELS motor bolts as shown in the motor mount will undergo. Weight and strength prop drawing. This is the front anchorage for erly proportioned. Natural The next and last assembling job is to shade. Handmade. the cowling. Open up the cowling, slide mount the wing. It is held in place with it over the fuselage with the motor mount 3/16" flat rubber wound around as can be Recommended by all lead- w attached and find experimentally the points seen from the photos. Before putting on the ing firms and also by build- 4 ers of record- breaking gas where the cowling must be punched through rubber, a it out x 2" rubber pads from m odels. to permit the three %" 6-32 machine screws an inner tube. Place these on the mount to engage in the threaded portion of fitting and put the wing on top of this. This will “F ”. These three screws will hold the right eliminate wing slippage. Put on enough portion of the cowling secure, permitting rubber to hold the wing secure without the left side to be raised and lowered at putting undue strain on it. JAP PROPS will. A single large dress snap, placed on the lower portion of the cowling and backed Painting up by small odd blocks will hold the left Of course painting should be done when side down. If you have any other sort of the plane is completely apart. The original snap arrangement, you may use it, provid had a color scheme consisting of red and ing you are sure that the balsa is properly white. White will take nicely to the smooth backed up so that it will not be crushed skin of monocoque construction. Be very and rip out. sparing with the lacquer, because the silk Propeller has a habit of absorbing a great deal of it, The drawings for the propeller template adding weight. One light and one regular S T E E L T Y P E were given last month. Cut these, from coat will suffice. Rub down between coats Bristol board or aluminum, making one with automobile rubbing compound. The =q==(Si0 each for plan and profile. Punch a small finished surface may be waxed with beau BRASS PROPELLER SHAFTS hole in the plan template to mark the tiful results. center of the propeller shaft hole. The Flying M IN IA T U R E propeller block is x x 15". Poplar One would expect a lot of trouble start CELLULOID will be found an excellent material. It is ing an enclosed motor such as this. How MOTORS also possible to use pine or bass. If you ever. the three flashlight cells will give 4 sizes: lfe '| 2*| 2%'f use pine, get a good grade. Note the dash very quick starting and the arrangement in Another Japanese side the cowling is very convenient to I m p o r t marking on the end of the plan template. This is for lining up, so be sure to include starting. Once your motor has been run in These lightweight motors have heen designed to our specifications. Every detail of the original it. properly, follow this procedure in starting radial engine has l>w> accurately reproduced even to the cowl plate at the front. They are a dis Draw a straight line down the center of the motor: tinct Improvement over any other dummy motor. At Whitfield's low price, they can be easily in the block. Drive a pin through the hole 1. Set the needle valve at a slightly rich cluded in every flying inode! kit. in the template into the wood, right on the mixture. We Pay Shipping Charges center line. Line up the marking on the 2. With the switch on, choke the motor end of the template with the center line, until it pops once. WHITFIELD PAPER WORKS and draw around the template. Swing 3. Close the cowl and flip the prop until N o te .Veie A d d r e s s : around the template, line it up again and the motor starts. 76 VARICK ST. NEW YORK CITY j trace once more. Trace the profile template. The motor should start after the third or I Markings complete, drill the hole for the fourth flip, and sometimes sooner. It is not MODEL AIRPLANE NEWS ___ ^ may 31 BUNCH sets the Pace t& ect. ot/iesiA - at£e*nf>£ ter ^O & atir Bunch again takes the spotlight with a new and perfect-performing, inverted-model motor; de signed for high-profile area planes. Here’s the motor you’ve been waiting for — the type that improves the performance of practically every airplane. It’s here at last; a Bunch product — and another champion that starts instantly with out flooding. It’s different from all others; not just an upside-down motor made from stock up right parts, but designed specifically for inverted operation. Order with confidence. The name Bunch is sym bolic of leadership and your guarantee of perfection. Mighty-Midget Inverted: The worthy com 1 panion to its famous brother. A guaranteed product with every new refinement created and controlled by the Bunch Aeronautical Laboratories. Ready for immediate service; absolutely no con version changes necessary. Assembled and block- tested, $17.25 postpaid. Mighty-Midget Upright: The motor sensation 2 of 1937; accurately assembled and block- tested. Acclaimed by motor experts the finest high speed miniature power unit obtainable at the price. Assembled and block-tested, $16.50 postpaid. Gwin-Acro Inverted: A special inverted 3 model, possessing all the reliable features of the upright, with added features that insure the perfect performance of this type motor; mounting insures proper acro-dynamic balance. Assembled and block-tested, $18.25 postpaid. A Cwin-Aero Upright: Advanced model, with ■ these new features: Full-length exhaust stack; symmetrical air-cooled, finned cylinder and head; new positive-action timer assembly. Assembled and block-tested, $17.50 postpaid. BUILD YOUR OWN MOTOR: Both the 5 Gwin-Aero and Mighty-Midget models are available in kit form at a great saving in price. Complete instructions with every kit make assem bling easy. Every part precision machine finished and made of the finest material. Why gamble with ordinary motors when Bunch gives you cham pionship performance? M O T O R K I T S Gwin-Aero Upright Kit . . . $11.35 Cwin-Aero inverted Kit . . „ 11.60 Mighty-Midget Upright Kit . . 9.85 Mighty-Midget Inverted Kit . 10.10 Every Bunch motor is certified for material and workmanship and equipped with long-life, high- compression piston rings. Sensationally new devel opments will be found in every model. Specifica tions— Flying weight complete, 18 ounces; bore 7/e inch; stroke ·{;} inch; power 1/5 H.P.; R.P.M. 500 to 7,500 with design propeller. A ll models equipped with special starting device for block testing. Order today. Know the thrill of flying a cham pion. Demand Bunch quality and guarantees in everything you build and fly. To insure prompt delivery, enclose Post Office Money Order. BRITISH AGENTS: M O D E L SU P PLY STORES, 46 DERBY ROAD, PR EST W IC H , L A N C S ., ENGLAND MAY 32 1937 y*— * MODEL AIRPLANE NEWS Indoor Plane Facts SUPPLY HEADQUARTERS (Continued from pa fie 7) ______GAS POWERED ______RUBBER POWERED permit the stabilizer to bank. r n F P with every order of S4.00 or over we w with every order of * 1 .0 0 or more, (kits §■ Iff ► ► give 1 pint of cement and *'«*· p o s ta g o excluded), we will tend IOO 1 . 16 sq. x This can be corrected by bending the wing 18" balsa strips. ΙΟ- of rubber. 1 sheet 1 11 ™ “ the U.S.A. FREE .2 for .30 of balsa and one V2 or. bottle of cement. clips so that the wing assumes a bank when Aircraft Spruce .2 for .35 B a ls a W ood I n s ig n ia Aluminum Cowls 5 Ft. length*» . 1 f o r .3 0 14" M ri|i· bilCXXOOoUiitliilg l>*■ '-Λ tu p e a fa re or aroe you are holding the ship prior to launching. . 1 f o r .0 4 p r i c e f o r 1/16*1/16 -2U lo r M i o f A 1 u* 1 loan. Frcneh. rtnsl . 1 for .05 1/I6*I/ λ 16 lo r .05 En»li»l> end G erm an- 2 " ...... 18 For example, if you notice the stabilizer in 3 7 1 6 1 f o r .0 7 1/16*8/16 15 fur 218 S h e e t...... »» 3"...... 27 3 / 16 K 1-a ...... I f o r .1 0 1/16x1/4. 14 lo r .03 Dowel* Dummy Radial a left bank while the model is flying, bend 3 / 1H x 1...... I f o r - 1 5 2 4 x 3/32 aq. . 12 lo r .05 1/ 16*12-- 1 do*. .05 E n g in e s 3 / 1 6 k 3 J f o r .4 0 Covering Silk 3/32*1/4. 10 for .05 1/8x36...... 2 for U5 I 1 /2 " ...... 10 V« x V*...· 1 f o r .0 9 P e r S q . Y d ...... 4 3 ) - A «1 10 lor .05 Clear cement, 2 " ...... te the clips to put the wing in a left bank. colored dope and 3 " ...... 25 Va x ·* ...... 1 f o r .1 4 steel Music Wire 1/6*3/16. » lo r .03 1 I f o r . 7 1/6*1/4.. 7 lo r .05 c l e a r d o p e ( in c lu d Ball Bearing Then when the ship is flown again, the t'4 X 1 3 ft. length» ing all colors .1 Propeller Shaft V t X J ...... 1 f o r .4 5 1/6*8/». 6 for .05 1 / 1 6 D ia ...... 1 0 1 /8 * 1 /2 . 4 lo r .05 1 o<. b o t ...... in 1/lb ,!>» .33 wing and stabilizer will both line up paral S a l t a 3 / 3 2 D in ...... 15 8/16*3/16 4 lo r .03 3 <1*. n/i...... 2U P a u lo w n ia 5 Ft. length» V» Die...... 25 3/16*1/2. 2 lo r .65 Japanese Tissue Wood Piopeller lel to the floor. If the wing banks slightly, V»...... ·* f o r .1 0 Hard Aluminum Angle 1 /4 * 1/4.. 3 for .05 20x24 5··...... i>7 i ; ...... a f o r .1 4 1/16" thick for motor 1/4*3/»· 2 fur .05 White .... ,2 fur .05 6" ...... 02 v* x 1 ...... 2 f o r .1 7 mount». 1/4*1/2.. 2 for .03 Colored.....3 fur .12 wash the low side in; that is, warp a little 3 / 1 6 x 3 / 1 6 ...... « f o r .2 5 V a X LSi...... Per ft. .16 1/2*1/2 . 2 lo r 05 (All etilersi 6 " . .15 3 / 1 6 X M i...... 2 f o r . 1 0 Φ ί X i E |...... Per ft. .20 l x l . . . . I for 215 Brown Rubber 1 0 " .20 more incidence into the half which is low. 3 / 1 6 X 1 ...... 2 f o r . 10 Aluminum Rivets 1·' Sheet Sal·» l / i l i m . 20 Vt .OS Thrust Bearings •Λ x 1/4...... 6 f o r .2 5 V* D ia . h e a d ...... d o r . .0 5 1/3 3 * 2 .. . .6 fur .10 l/S FUt. . .17 Fu .06 *:*> it When the ship flies fine on 500 winds, V t X i/a ...... 4 fo r .2 5 lo r .13 8/16 FUl . 12 Ft .07 2 r ...... do*. 15o 1 ...... 3 f o r .2 5 Μ & M Air Wheels 1/16*2 . .6 Lsrsc. each V« X 3 t V ' D la ...... Per pr. 81.50 3/32*2. A for .10 Aluminum Wheel# try it with more. Keep increasing it 200 4 * ...... 3 f o r .2 5 1 /3 * 2 ... .4 fo r -12 1" .08 2 r ...... do*. lGe 1...... 1 f o r .1 8 4 V i " D la ...... Per pr. 83.7 5 .12 Celluloid Sheet Hard Aluminum Sheet 8/16*2.. .3 for .13 :i ■ *' x 1 ...... 1 f o r .2 3 1 /4 * 2 ... .3 lo r .14 Balsa or Hard 2*fi...... At turns every flight, until the ship shows Gas Model Salta 1 /32 x 3 x 12 ...... ΙΓ» 1/2 *2 . .2 for .11 Wood Wheels Mod.il Fir., .PY. .05 36" or 1H" lonjrth of 1/16 x 3 x 12 ...... 2H Wood b · hail I" ref pr· 05 Dope Uruetic*...... 03 signs of trouble. If possible, cure the ill pa* model balsa can be Gat Model Cement. Clear in 36" length* or 3 I 3 / 8 " . . . per p r . .04 Sn»> T'lur.» .. .02 had. See our regular list Dope. Thinner and Colored w* SELLEY-TEXPATENTED 15c postage THE NEW SENS A TIONAL S C L U r-τεχ ALL FINISHED MOULDED ASSEMBLY KIT ONE HOUR BUILDING TIME TO ASSEMBLE THIS SNAPPY LOOKING MO GUARANTEED TO FLY 200 FEET This trim, graceful new SELLEY-TEX sensation Is a modified design of the famous English "DcHAVI- LAND-MOTH" and is the most beautiful flying model ever produced. FOR THE FIRST TIME since the inception of MODEL Building. SELLEY has accomplished that which has been the goal of all model manufacturers. HERE AT LAST—is a super quality model that is scientifically designed and aerodynamically perfect that will give amazingly long flights, either from the hand or off the ground. The method of construction and new uses of materials are entirely novel and new in model airplane <5/ 22” WINGSPAN building. All parts of the Moth arc beautifully moulded In the form of light hollow shells, perfectly shaped and fully detailed. The fuselage shells are firmly fused together forming a perfect, crashproof Attractively and completely finished in a combination fuselage. All wing surfaces are moulded to the correct wing curves and are completely finished. The of three beautiful colors. Be the first to FLY the moulded hollow streamline struts are remarkably strong when cemented together. The •‘MOTH," when MOTH in your neighborhood. ASK YOUR DEAL ER—if he can’t supply you send direct $1.50 plus assembled, is practically crash proof and will stand up under the most severe flying punishment. 15c postage. EVERY SELLEY-TEX KIT is sold with an unconditional FULL MONEY BACK GUARANTEE N EW AERO NCA * * THESE ARE THE M0ST REMARKABLE AUTHENTIC FLYING MODELS EVER CREATED if;'· Wino Snan Tl1'/ n,:w S15LT.EY-TEX moulded method of mode] biitMins? is the greatest S IM P L E A S A . B . C . kkKL ” n" »pan 811,1 mo8t outstanding development ever made in model airplane building. ^ Λ —Fit together W M ftpg y ΗΚΙΛ.ΚΥ-Τεχ kits are fully eini-red by U. S. patents they offer the ‘, ■? n d cement model builder the only exclusive practieal-tn-liuild kit in the world. v A n e t ^ moulded λ 'Ά·,- . 'tJT SKLI.KY-TKX kits are the finest quality models that you can purchase ami A W / y y cannot be compared with the cheap complicated 1 1 1 >>- of Iwlsa stick kit that D —C u t a w a y th e ^ I* a* lew prices. I ** b o r d e r ol e x - These sensational new models are very realistic in deaim. durable, and I Ji*!_Ther'r#'»iiit .» ^ a perfectly shaped fuselage in t h e fo r m o f λ hollow shell, SELLEY-TEX very strong and SELLEY-TEX CAPT. MOLLISON’S indestructible. REARWIN BELLANCA RACER SPEEDSTER A Guaranteed Kit it Guaranteed Kit W IN G S P A N 20" LENGTH — 1 1'/j* EVERY SELLEY-TEX KIT CONTAINS: The necessary moulded fuselage sides, cowl, pants, bombs, motor, All li-st class Department Stores. Re etc., saw-cut propeller, scale propel JOc postage tailers and Model Dealers carry SELLEY- ler parts, formed wire hooks, scaled TEX KITS—If their supply i« exhausted wheels, brass bushings, printed out ^ U 3 9 f r Winq Span 16- —Order direct, refuse stick ribs on balsa, turned wood parts, 9 ^ Length ....10' model substitutes—Demar tail wheel fork fittings, wire, para MB&B2W. Sclloy-Τοχ Guaranteed K,t rubber motor, colored paper, authen A Guaranteed Kit the standby of craftsmen. tic markings, colored insignia, ce ment. colored dopes and easy to SELLEY-TEX j SELLEY-TEX understand plane, and are packed 10c postage in a beautiful, sturdy box. LO CKH EED A CURTISS OSPREY SELLEY-TEX ORION V0UGHT CORSAIR, JR. Wing Span 20’ Length —12 V WING SPAN 18‘. 41 LENGTH ____ 13'/»· 15c postage A Guaranteed Kit WING SPAN. It 15c 15c Postage LENGTH ....13»; p o sta g e i £ v n*J,.°-rne *«·«■* Stores tarry SELLEY 15c postage A Guaranteed Kit TEX KITS. There’s a reason.” A Guaranteed Kit A Guaranteed Kit you should have a long enough moment arm. quickly. The safest thing always is to leave expect it to climb, and bank it slightly The overall length of the ship should lie the wing in the position where the best towards the inside of the circle. Allow the at least three-fourths of the wing span. This glide is obtained, and adjust the ship by prop to revolve an instant, and then set length should be split into about 55% motor the other means described. the ship gently into the air along the path stick, and about 45% tail boom. For ex Now that you have the ship adjusted at you expect it to take. It should take a spiral ample, if your span is 36", the overall this stage of winding, proceed once more path, climbing steeply and with a forty foot length should be 27". Then 55% of 27" is to add 200 turns on every flight until you or less circle. about 15", the proper length of motor stick, again run into trouble. Correct as before, There is much more to flying a model and the boom is 12". This applies on all and in this way you will eventually reach than the adjustments described above. For indoor ships with between 90 and 150 square full winds. Remember that nearly all air one thing, winding is a most important inches wing area. planes, from Baby R.O.G.s to giant trans feature. First of all, obtain or make a 10 See if you can’t find the cure for the ports, become a bit tricky when full power to 1 ratio winder. A good one can be pur stalling in the various indicated remedies is applied. As a result you must be espe chased for 50 cents, or you can make one given above. But if the trouble persists, cially careful then, to see that you handle from clockworks. Winders of 25 to 1 ratio and you haven’t much time, bend the bear the ship right. Launching should be made are not recommended, as they are geared so ing so that the prop leans forward just a as follows: Hold the propeller in your left highly that the feel of the rubber through shade (downthrust). If you have time, the hand and the ship in your right. The thumb the winder, so valuable to expert winding, better way is to add 1/16" positive incidence and forefinger should hold the stick where is lost; also, they are not practical to wind to the wing, and 3/64" positive incidence the wire clip encircles it. The clip will for full power, or sustained power, because to the stabilizer. You will also find it helpful prevent your perhaps nervous fingers from one must allow an exceptional margin of to move the wing back a bit, although this squeezing the stick too hard, causing a pre safety throughout the winding period for may be injurious to the latter part of the mature end to your flight. Point the nose fear of breakage. Further, with a 10 to 1 flight, forcing the ship to come down of the ship up at exactly the angle you winder, one can tell instantly, at any time, MAY 34 1937 —- MODEL AIRPLANE NEWS exactly how many turns are in the motor. plane, about the newest dope on motor Proper winding is, above all else, a matter sticks, and many other things vital to suc FLIGHT of practice. Several boys, starting with the cess in indoor flying. Until then, start mak simple formula given below, have practiced ing plans for your 30-niimtte ship! TIMER winding at home, with the motor hooked to the door or a bed; and after five or six Build This Stinson from Scrap Wood hours, they developed little knacks of their own, and became very good at it. Winding (Continued from page 13) is also a matter of nerve. You must believe developing high speeds at frequent intervals that the motor w on’t break. with pauses of a few minutes at each land Be sure to use special brown rubber, the ing and other factors, all had to be carefully kind made especially for endurance models. studied. As a result, among the planes de $300 Next, use a good lubricant, the type made veloped expressly for this type of service is from pure green soap. A square knot should P o stp a id the Stinson Model A Tri-motor, considered ANNOUNCING n new product for the timing he carefully tied with the ends of the rubber. to be one of the best in the field. model flights. Time O to AO seconds Inclusive. 2Vi ounces, silver contact on-ofT switch, snap Now take the knotted end and the opposite Invaluable for tost flights «nil a necessity for The Stinson Tri-motor seats eight pas second National finals. end of the loop, and bring them together. i g n i t i o n C O ll__ Our regular model that is standard sengers and two pilots. The wing span equipment on most motors ...... S 2 .S 0 Dip the rest of the rubber into your can BIG SHOT ICNITION COIL—a superior type of heavy measures 60' and the length 36' 10". It duty, efficient coil for Ik w i» and other high compres s io n e n g i n e s ...... S 3 , s o of lubricant, and put your thumb over the stands 11' 6" high. It is powered with three AVIATION SPECIAL CONOENSER-for the contact point*», tubular aluminum case. *1 trended pigtail wires. hole, leaving the front and rear ends of the Lycoming 260 hp. engines whirling Smith s i d e m o u n tin g b r a c k e t. e o i> v o n r a t i n g ...... 3 S c We pay postage on orders over S t.00 motor outside. Then shake the can thor controllable pitch props. It takes off with a oughly, take the rubber out, and massage full load in a run under 800 feet, climbs 1000 NATHAN R. SMITH the lubricant into the strands. But be careful 1814 W. 8th St., Los Angelos, Calif. feet per minute and cruises at 5,000 feet at not to get any lube on the front end or 162 m.p.h. Its service ceiling with three the knot. engines is 15,000 feet. u.s.BRmy Here is a simple, easy and practical Among the airlines which use the Stinson OFFICIAL method of winding. Attach the rubber to the are American Airlines and Pennsylvania PILOT Uiinos, propeller, and get someone to hold that Airlines. Beautiful and Durable _ _ Pine with Official Des _ end of the motor in such a way that if it All the parts in the plan for making a _ ip'ititc r.f Rnaulntior. Bre&c. Wictf^l >4' 8pf«ail: SilvCC Kiamh on Hoavy M fjl—BOc eocli Pnvtpaiil· „ broke it could not harm the prop or any silhouette glider of this ship are listed be D o plifote of RoKuUUim L ap-! Wi.-,κΜ upp. \* Spread; OcJd Firutb witn Sllvw Propeller. H«uvy Mi'Ul; 2S c ftaeh Fp. other part of the model. Next, stretch the low with their respective dimensions: Sterliiix Silver Aviation Itinio !tena »Ite) S1.O 0 eac» PP· ' * ‘ ' Of A v in t ...... " motor to three times its length ; that is, a 20" ΒΜΜ·Μ·ί····Β^Η·Ι loop should be stretched to 60". The test Bill of Materials way to do this at a contest is to know the A. Wing, 1/32 x 2Ji x 11J4 length of your shoes, and thus measure off, B. Fuselage, 3/32 x x 6% The 1937 Precision 820 heel-to-toe over and over, the required dis C. Rudder, 1/32 x 1 13/16 x 1 11/16 tance. Now start pre-winding. If your D. Elevator, 1/32 x 1 13/16 x 5 motor is capable of 2.400 turns, put in about E. Engine nacelle (make two) 1/16 x 3$ 1,500 in the pre-wind, which is merely in x 2 H tended to ‘‘break it in." Wind carefully F. Fillet piece 1/16 x 3 /3 2 x 1 7/16 and come in slowly so that by the time you G. Wing rib (make two) 1/16 x 5/32 have put in 1,000 turns, the motor is x 2/16 stretched only 40". Put in the last 500 turns H. Propellers (make three) 3/32 x % while coming in the remaining 20". The x i y2 formula, then, is this: Put in two-thirds I- Wheel (make two) 7/32 x l/z diameter of the desired turns while coming in one- J. Landing gear fork (make two) see Built To Fill The Demand For third of the distance. directions For official flights, wind to the limit on K. Landing gear strut (make four of bam a High Quality Model Engine either the second or third winding, lubri boo) 3/64 x % x 1 7/16 Many years oi commercial anti military aircraft en cating thoroughly just before you start to L. External brace strut (make four) 3/64 gine' experience are embodied In the Precision 820. Strong finned head, cylinder and crankcase construc wind. Then stretch the motor to five times x 3/32 x 1 y8 tion follow proved aircraft engine practice. TV.c 820 is custom built for you Every engine re its length, and put in about 1.600 turns M. Compression strut (make four) 1/32 ceives the Individual attention which assures satis faction and long life. while coming in one-third the distance. x 1/32 x 11/16 Effective May 1. due to Increasing labor and ma terial costs the 820 will advunre in price to SI9.50. Next month, we’ll talk about the latest N. Tail wheel (full size) Send money order or write tor free Illustrated booklet. method of holding the rubber motor so that O. Radio mast 1/32 x 1/16 x 15/16 AERO PRECISION MACHINE WORKS bamboo 2250 E. Colorado St. Pasadena. California in case of breakage it cannot harm the P. Pin axles for wheels Q. Position for the nose weight — > M & M s PNEUMATIC, LE Leading edge of wing. The first step is to make an outline SUPER HEAVY DUTY WHEELS tracing of the main parts of the model COST A LITTLE MORE CAS WHEELS WORTH MUCH MORE which are, namely, the wing (half of which New rubber that is realty tough—will not crack or stretch is shown), the fuselage, rudder, elevator out of shape (shown half), engine nacelle, wing rib BUILT TO STAND ABUSE (letter G) and the fillet piece (letter F) Go to your dealer today and sec M & M's Latest—Snappy, onto the balsa selected for use. The rest Super-Wheels Why bother with complicated landing gear when M & M’s w ill of the parts may be made by taking that insure and protect your models at small-cost part’s measurement directly from the plan Μ & M S u p e r Heavy M. & M's are the only wheels for Mo’dol Planes that have valves and and cutting the piece of material to fit. D uty W heel can be inflated and deflated. SIZES I>Λ—I % — I '/a—I —PRICE $0.50 Per Pair, Postpaid. To make the model easier to assemble, GAS WHEELS SIZES |ft—2—2'/$—2'Λ—2y„—2'/2—2ft"—and Special Designed Do-Nut it is best to have all the struts and other The constant rise In raw m aterials, Wheels. Size |fc"— PRICE 50.M PER PAIR, POSTPAID. For Air Mail and general costs compels us to small details shaped to fit and ready for use. increase our Add lie. All M & M's Fully Covered. Pat'd and Pat. The wing is cambered the usual way, Size 3Vi" to $1.50 Ponding. TRADEMARK Μ & M Reg. U. S. Pat. Off. i.e., over a steaming kettle—never a flame. Per Pair Post Paid Effedive Feb. 1,1937 For Air Mall If located in Washington ado State Tax with improved M & M axlo housing Obtain M&M'e from your dealer or send to us Remember, although half of the wing plan •or 9,.’64th or No. 28 drill ro d axle Add 21c Dealers: Our New Discounts Are Very Attractive w7$PANS: Send For FREE literature sho«imr full-si» wheel. is shown, the wing is made in one piece. SS ?:£ Μ & M MODEL WHEEL CO. Note liow the wing as shown in the front Size Z W rXl*i%". Price $3.50 per pair P.P. 325 North 79th Street, Dept. M-5, Seattle, Wash. view tapers in thickness toward the fuse- I lage. To get the effect on the model’s wings, MAY MODEL AIRPLANE NEWS '— 1937 35 C’m on Boys Get into this Easy PRIZE CONTEST CHAMPIONS! SIMPLE RULES SAMPLE ENTRIES JU D G E S W lL L BE only a limited number of contest winning kit* loft. The FREE TO WINNER WE WOULD LIKE 1. Editor of CHIEFTAIN took lei place in the 1030 KRESGF, MEET, 1. You m ust lim it HE ATI IE TO: — •2a min. on 1,10 oa. ga*· The BUHL PUB TOOK 3rd place. M o- the complete sen M O D E L A IR tence to 2 !i 1 . . . s e l l a li n e o f REMEMBER: All our kit* are guaranteed. Semi • l ' roller skates the following must he observed: When the wise known as a fork type landing gear. wing is in its curved form, mark off its The folks are cut to shape with the aid IN YOUR MAIL BOX center, then crack the wing slightly raising of the corner of a razor blade from 1/32" every month for 12 consecutive months—several days before your own newsstand gets copies. Con each of the outer tips to a dihedral angle sheet balsa. Make six forks. Each fork venient isn't it? Your copy of measuring . Now apply cement along consists of three pieces (each piece being the crack generously and fit the wing to a fork) which are laminated cross-grained. the bottom of the fuselage shown by the Apply cement to all parts and allow time MODEL AIRPLANE NEWS curved white line which represents the to harden. In the meantime, shape the land reserved and delivered to you—and at a saving. Why not subscribe now? Send $1.65 today! wing curve which is above the fillet piece, ing wheels from soft balsa. You've probably been wanting to build that famous K-G GAS MODEL for a long time— letter F. When the forks are ready, apply cement well, you can start soon for we’re giving away The fillet piece is then cemented in place around the top ‘‘handle” and some in the complete plans with each yearly subscription. immediately afterward. The next step is nacelle slot. Attach each fork in its re to place the wing ribs, letter G, in their spective position. Keep the tail end of the respective positions. A couple of small fuselage in level flight while the cement Free- model making pins pushed part way from hardens. c o m p l e t e PLANS the upper surface of the wing into the rib The next step is to attach the landing to build the popular will do lots to hold the curved surface struts, letter K. Both front and side views in shape until the cemented ribs dry show how it is done. The K struts are K-G GAS MODEL Full size 7-view detailed plans and thoroughly. Remove the pins later. strips of bamboo cracked as shown on the instructions. Arranged so that you The next step is to attach the engine plan and cement applied liberally at the don’t have to cut anything. All in ono unit, size 22‘A"x29 Very nacelles in position. It is absolutely neces crack so that it will harden in that posi easy to follow. Includes a full list sary that the curved slot of the nacelle tion permanently. The landing wheels are of necessary materials to build this record-breaking model. G as model as shown in the plan be identically cut out placed in position by the usual method using builders will welcome this useful and on the wood parts. Apply cement along a small pin for the axle. instructive gift. the slots and slip each nacelle over the The tail wheel is attached after comple wing. Check for alignment from both tion of the landing gear assembly. The FILL INJHJSC0UJPON AND_MAIL front and top views. Note the small slot radio mast is shaped from bamboo and at cut out of the under part of the nacelles. tached as indicated by letter O. Carve the MODEL AIRPLANE NEWS, 5 The landing gear struts, letter J. are at three props and place pins through their 551 Fifth Ave.. New York Enclosed find $1.65. Send MODKL AIR PLANK tached at those points. centers. Work each prop so that it spins NEWS for 1 year. Also send me by return mail Of the landing gear struts, letter J is freely in the slightest breeze. Attach the complete plans to bn lid the K-G Gus Model. the most important as it is subjected to all rudder and elevator in place and check Name of the landing shocks. Therefore it must for alignment. A piece of white thread is be made strong to withstand the strain im used for the antenna wire and runs from A ddress ...... posed upon it. it is built in the following the mast to the front of the fin as shown manner: From the front view it appears to in the photograph. City ...... State. be like the letter U in an upside down Letter Q shows the position of the nose Tftts offer good in the United States and its pos sessions; also Cuba, Canada, Mexico and Panama. position with a handle on it. This is other weight. Cut out that portion with a razor All other countries 92.SO. MAY 36 1937 ^ ----' MODEL AIRPLANE NEWS blade. You may proceed with the painting almost completed when it is found that of the model at this time. As you will note some of its parts can be manufactured much the struts, letters L and M have not been lighter. They are replaced to make the ship attached. This is done so that you will be more efficient which of course delays its allowed greater freedom with your paint completion. This is true of the DC-4. brush in painting the windows and fuse It has been found that castings can be lage stripes. They are cemented in after made with as small as webbing. These the paint has dried. It is best to leave the will be substituted for the original heavier spot where connection of wood parts are castings in the DC-4 which when all to to be made unpainted until the parts arc taled will be a weight saving of a couple cemented in place. Then touch up these of hundred pounds. places. The second of Douglas’ DF flying boats The color scheme is as follows: The en has been test flown. The first was crated tire fuselage is painted royal blue. The at Alameda, California, and we hear it went on “IMP” leading part of the wing, that is, the por to Japan. The second is for Russia! It is tion forward of the diagonal white line a very beautiful ship with red wings and TORNADO shown on the wing plan, is painted in blue blue fuselage. Carl Cover test hopped the illOTOH.% and the trailing part crimson. The same job in the Pacific. Unfortunately during method is used in painting the elevator— the tests a log punctured a hole in the hull. forward part, blue; rear part, crimson. The ship was hauled up on the Santa The stripe along the sides of the fuselage Monica Reach, and the slight damage was PAT. is crimson bordered above and below with repaired there. The hull of the DF has PEND. thin stripes of aluminum. A thin aluminum no keel. All stresses are taken up by a line separates the two colors of both the series of stringers. wings and the tail surfaces. The fin and Waldo Waterman has test flown his rudder are outlined in crimson and below' latest creation at Santa Monica. It is a it all around is a thin aluminum line. Note flying wing with detachable wing panels. howr the fuselage stripe connects with the The panels may be taken off and hung up outline stripes of the rudder. The nacelles in a hangar, and the fuselage may then be Complete with Generator, Feed Line, and Safety Clip. * Z| O O arc blue and the front parts as shown in driven as an automobile. On the same R e g u la r 53.00 V alu e fo r .... the photograph are crimson piped with a field at the same time Douglas test hopped 12" Heavy Duty Propeller and Plans for 60" thin aluminum stripe. Radio mast is blue. the first of their YB-18 bombers for the Monocoupe Model Included FREE if You Order External brace struts are crimson; pro Army. Direct from this Advertisement Tills wonderful reduced price offer comes to you Just In pellers aluminum; windows aluminum. The tabs on the new C-37 Cessna, an time for spring Outfitting end Flying. Now is your chance Insignia is also aluminum with letters A A to Install power in your model at the lower cost. This effi improved version of the preceding C-34, cient Motor will Rive you the thrill that comes will» pow in crimson. will be electrically operated. ered nights. You ran install It In any type model. The simplest, most efficient and lowest cost power plant for 3 The lettering and license numbers on the Charles Tracy, aviation editor for the to tt it. Models. Runs on AC:CO Gas. generated in the “ IM P” Generator. Send your order at once—this is a wing are as follows: On the upper right Toledo News-Bee, writes in his column that limited time special offer and lower left the license number NC— on the Western outskirts of Fremont, Ohio, Also made tn Model V-4—4 Cylinder—Weight 314 or,. [ Flies Models 4 to 8 tt. Complete with Gen- F T d k 14141 in aluminum. On upper left and lower a concern known as the Standardized Air crator, Feed Line, and Safety Clip...... *P · ·ΙΡ” i (Plus 25c Pontage) right the letters A A (American Airlines) craft Co. is building a high-wing monoplane in aluminum. The wing stubs or center sec February. 1937 with a span of 33 feet. It will be powered My s-2 Motor has been running for over a year now. and tion part of the wing which is inboard of by a four cylinder 125 hp. Menasco engine the motor and generator Is still good. Your* truly. the dotted line, letter G, is painted blue. and will carry two passengers and 40 pounds Bshan Minasian. Lawrence, Mass. When the paint has fully dried, place the of baggage. Top speed will be 135 m.p.h., lead weight or lead foil in position tem cruising 115 m.p.h. and landing speed will porarily and begin gliding experiments both be 42 m.p.h. The price for the plane will indoors and out. Add or remove as much be about $2,700. Mr. Hise, formerly of the weight as you find necessary. Glenn L. Martin Aircraft Co., is the de signer. W hat’s New In Planes As we go to press, Roscoe Turner’s all- (Continued from page 5) metal mid-wing racer is set for its first test information because it is a new military flight. The ship should do about 425 m.p.h.! ship—and because we have not been able to Frank Hawks’ new racer has had fairings obtain the details anyway. put on the landing gear to cover the gap The vertical tail of the DC-4 is so large in the wing when retracted. 64 in. “Four In One" Kit that the engineers at Douglas decided to Roy Hunt, famous stunt and race pilot, divide the large single unit into smaller has designed and will soon build a stunt REARWIN separate units as Lockheed has done with biplane for forthcoming National Air Races. SPEEDSTER their transports in order that the ship may It will be the only airplane in the United Can be powered with be able to fit inside a hangar. With the States built expressly for stunting. Roy Gas. "IM P”, Air or Rubber Motor will have charge of the construction of the 64 In. Wing Span. Weight 18^4 oz. Gliding Ratio 6 to 1. original tail they would have had trouble Adjustable Angie of Incidence. Removable Wing*. Quality getting the plane out of the Douglas ship himself. kit with 12*’ finished Prop and Nose Piece. 3* Balloon Cork-Aluminum Wheels. Full Size Plans and many other hangar, now the world’s largest airplane “Jane’s All the World Aircraft for 1936” exclusive features. £* A 4 k contains much in the way of news of pro Complete kit only...... hangar. (Postage 25c Extra) Ψ W One great difficulty in building such a posed airplanes as well as those that have FREE with each K it—an EXTRA H * “ IM P" Gas Model giant all-metal ship as the four-engined already been completed. It states that in Propeller with all Direct Orders Only. Belgium the Tipsy Company is to produce for our New Propeller and Motor DC-4 is that various phases oi metal con Efficiency Charts indicating rela struction are not thoroughly known as yet. a twin-engined mid-wing with two 30 hp. Send tive efficiency of leading G«s Motors and Best Propeller Types More research is needed. The Douglas Ava four-cylinder engines. It will be a and Sixes fur all Models; also 5 cents Complete Catalog of all “ IM P" Company lately has been conducting re two-place pusher airplane. Products. search of its own on simple types of chan There is also mention of Caudron’s new International Models Company nels to find out more accurately just what twin-engined bomber that will look much Motor Division strength there is in them. The design of like the Junkers 86 bombers. A new 2S1 West 55th Street, New York, N. Y. many of the parts of the DC-4 will depend Latecoere 521 flying boat is to be built British Agents for “IMP" Products: Model Airplane Stores, 42 Derby Road. Prestwick, Lancs. on these tests. Methods in metal aircraft which will be twice the size of the-Lieut, Sole Agents Tor France and Colonies: E. Kruger A- Cie. 9 R. San Sebastlen. Paris, Exl. construction are developing so rapidly that de Vaisseau Paris, or in other words it will Sole Agents Tor Scandinavian Countries: aeronautical engineers are being kept very have about a 324 foot wingspread. There Aktieboiaget Toys. 7 Nybrokajen. Stockholm, Sweden busy these days. No sooner is an airplane will be eight engines in the wing of 1,000 hp. MAY MODEL AIRPLANE NEWS '— H 15>37 37 each. There will Ik four rows of pro pellers, two in each row turning in oppo site directions to eliminate torque. GUARANTEED PERFORMANCE Liore-et-Olivier of France has designed IF YOU USE a C-34 autogyro for the army according to the annual year book. MODELCRAFT'S PROVEN DESIGNS In Germany, Gotha, who built those fa Every model undergoes hundreds of flights before a kit ia offered for sale. Only MODELCRAFT m arks the point of balance on the plans. Why? Because the model has been flown before the plan* mous giant bombers during the war, is now were made. MODELCRAFT never has offered a box of materials, a set of drawings and a prayer in the aviation business once more. Their for sale as a proven gas model kit—and never will. From the first model, the CORBEN, to the latest, the PACIFIC ACE, MODELCRAFT models have always flown “that little hit” better that first production is a 240 hp. Argus powered brings pride in ownership. training airplane. Holland's latest is a Fokker four-engined THE PACIFIC ACE F-56 mid-wing 56-passenger landplane 1937 model that has 1938 performance. KIT CONTAINS: transport. There will be four dressing Full sized plans rooms with two lavatory basins each on Cut-out ribs Switch and wire the giant transport. It will Ijc a double- Beveled trailing edge decker. Plywood, tubing and cloth are the Ready made propeller Silk, Real Music Wire materials used in construction. Specifica Heavy Duty Air Wheels (not made from penny tions of the F-56 follow: balloon stock) 1 Qt. Dope. 1 Pt. Cement Span—126' 3". Select hard Balsa, etc. Length—84' 7". Wing SPAN—60' Wing loading—23 lb. per sq. ft. Top speed—221 m.p.h. THE PACIFIC ACE THE SCOUT Cruising speed—191 m.p.h. Kit $8.50 Prepaid in U. S. A. High Wing or Low Wing Plans show 48”, 54" and 60" High Wing and Range—945 miles. 60" Low Wing. Span of the new Armstrong-Whit worths Designed to give the smaller engines a chance to really fly. for Imperial Airways will be 123 feet and The fast climb and superior performance gives length 110 feet; 42 passengers will be ac that personal feeling of satisfaction that only commodated. Comes from a ship described best as a “sweet flyer.” The secret is out! The Rolls-Royce Kit contains select hard Balsa, straight Music Merlin engine develops 950 hp. A smaller Wire. Cement, Dope, Switch. Hook-up Wire. Cut-out Ribs, full-sized Plans, Silk and Air and much finer version of the Fairey Battle Wheels, etc. has been designed with this engine. C 7 Ο ζ prepaid in Four new Burnelli designs are being built . £ 3 U.S.A. in England. They will be known as the Same kit with Whitfield’s bamboo paper and Clyde Clipper, 16-passenger 245 m.p.h. 54 SCOUT HIGH WING rubber “do nut” wheels $4.85 prepaid in U.S.A. Special cowl not in kit, $1.50 extra. transport; Clyde Carrier, freighter with a booklet on gas model construction, giving sizes of wings, tail surfaces, five-ton load capacity; Clyde Corsair, all- “KNOWING HOW fuselage, wood to be uaed, construction of fuselage and landing metal bomber; and the Clyde Comet, twin- gear, motor mounts, trouble shooting, test flying and adjusting and many other points. Price. engined fighter equipped with a 37 mm. ENCINES · SUPPLIES quick firing cannon. 3 Heavy Duty Air Wheels. $1.25 Ilcinkcrs latest creation is a two-seater 6" Aluminum Cowl...... 1.35 mid-wing fighter with a V engine and 8" Aluminum Cowl...... 1.35 L ite Switch..·...... 20 extremely long fuselage. Heinkel is a Hook-up Wire, 5’...... 15 German company. Another fine German Bamboo paper. 2 sheets ...... 15 Best Silk, per yd ...... - . .50 airplane is the Hamburger (don’t laugh) Rubber tail wheels, 1" 8c; lVi 9c: M-i 10c- Ha. 139 four-engined seaplane for catapult Spark plugs, special batteries, alum, tube and sheet, Dural wire, work. etc. Write for free circular Ranger will soon come forth with an CYCLONE ENGINES $17.25 OHLSSON ENGINES $18.50 * a C D C . Liberal Discount on Engines, Kits and Subblits. other new commercial engine. ftSEALCKa: Use Letterhead for New Wholesale List. Did you know that the wing on Howard Send ter our new 40* AERONCA LOW WING KIT (rubber-powered) 50· Hughes’ record-breaking racer has plywood plie 10c postage. First of a series of 40' kits. covering about an inch thick? It was put The LEADING MODEL SUPPLY 2125-27 W. 54th Street, on the plane about an inch and a quarter HOUSE OF THE WEST. MODELCRAFT LOS ANGELES. CALIF. thick and was then shaved down to give the wing a perfect airfoil section. In this CONTEST MODELS DESIGNED BY A CHAMPION way a very smooth surface was obtained. ESPECIALLY design·!.! Tor our NEW AUTOMATIC FOLDING PROPEI-LEK. By adjusting ihe wing the model will climb to an altitude oi several hundred feet. When the model is at the height of its climb and the rubber motor is un Starting an epochal 3,000 mile test flight wound. the propeller blades AUTOMATICALLY fold tight to the nose of the fuselage which ELIMINATES WIND RE of the single-bladed airplane propeller, SISTANCE. giving the “AERO-GLIDE” a peifm glide. DOUGLAS-DESIGNED AERO-GLIDE Douglas Kruse, who holds both the indoor and outdoor which has been hailed in many quarters as championship of the Pacific Northwest, designed the "Space the most revolutionary aeronautic develop Conqueror" and “ Aero-Glide” tor model contests, and wo are proud to be able to offer you these models with such ment in years, Lieutenant Arthur Seger remarkably advanced features. Peirce, of the Taylor Aircraft Company, DOUGLAS-DESIGNED “ SPACE CONQUEROR” will take off next week with a Cub “flivver plane” powdered with the new invention for the Pacific coast. The flight will Ik a service test of the abbreviated propeller to determine its adapt ability under all weather and temperature conditions. After a leisurely flight, con PATS. PENDING ON AUTOMATIC PROPELLER Wingspan 41”. length 30". wt. 3 oz. Kit contains all part· ducted in the same manner that a private to assemble folding propeller— MAMCO BALL BEARING pro peller shaft—Μ & M model wheel»—special brown contest “flivver plane” owner would take a jaunt rubber motor—glue, dope, tissue, wing ribs and other parts printed “On AAA” sheet bets*—all strips cut to sizo—full to the west coast, the propeller will Ik • ixe detail 3-view drawing. exhibited at the Pacific Aircraft Show in This model eriuippcd with Free-Wheeling Prop. Wing span “ Aero-Glide" Kit complete $2.25 Postpaid. U.8. and Can. 3β*. length 27*. wt. 2.8 oz. The new ''Space Conqueror” Sind for Catalog of gas model supplies and Ix>s Angeles. California, from March 13 to Hydroplane. Landplane and Sklplanc—all in one model— everything to build rubber powered model*. rliungc from one to the other jn two minutes. This model Complete line of Μ & M Model wheel*. March 21. Lieut. Peirce plans to visit has an unofficial record of 19 min. 25 sec.. 2500 ft. alti Dealers w rite for discount* Send Money Orders or CASH only, When sending eaah fasten Pittsburgh, Cleveland, Chicago, St. Louis, tude with Μ & M Model Wheels. And two to three minutes coin to letter with adhesive tape. If located In W ashington with pontoons and ski*. It takes off Just Itke a real plane, a d d S t a t e T a x . Tulsa, Dallas, San Antonio and many other is very easy to build, and the flights it makes are really amazing. DOUGLAS MODEL AIRCRAFT CO. cities enroutc. Complete Kit with Μ & M Modern Wheels. $1.75 P.P. 1400 North 45th St, Dopt X. Seattle, Wash., U.S.A. MAY 38 1937 v -— - MODEL AIRPLANE NEWS Invented by Baltimore Engineer “In all, approximately $4,300.000 is being Observers stared in astonishment recently spent by the company. The new Boeing The TORNADO" when a Cub monoplane propelled with the fleet, together with spares and equipment, single-bladed propeller landed at Floyd will cost approximately $2,043,000. Other 34" Low Wing Rennet Field, in Brooklyn, New flork. It funds are living expended for other new was flown to Brooklyn from Lancaster, twin-engined equipment, for research and FLYING RACER Pa., by its inventor, Mr. W. W. Everts, of development and for improvement of ground A re you tired of trying to build a Baltimore. Maryland. facilities.” model airplane that only a magician Mr. Everts has l>een working on propeller Concerning the new Boeings, Mr. Frye could construct and make fly? I design for eight years. Six years ago he had this to say: “Recently we completed a series of ex All right then, here is a new, aero- j patented a variable-pitch propeller with dynamically correct, low wing de I spring action. Four years ago he dropped periments in high altitude flying which con sign that will a6tound you with its that, brought out a variable-pitch prop with vinces us of the practicability of seeking speed, stability, endurance and manual control and two years ago patented higher levels. These experiments were simplicity of construction. Here is one which was automatic with constant carried on in the Northrop Gamma ‘Over- a reproduction of an actual photo speed. His odd one-sided airscrew was weather’ airplane, which was on exhibit graph of this sensational new patented last May, put through exhaustive at the National Aircraft Show. "TORNADO." tests, proved practical in actual flight and “Whereas our experiments were con was flown to the National Aviation Show ducted between 30,000 and 36,000 feet, we in New York City to confound aviation do not plan to operate the new planes at “wiseacres.” this level but expect ultimately to carry When the first flights with this radical passengers at 20.000 feet in these airplanes propeller were announced by the Sensenich through the addition of cabin pressure Brothers of Lititz, Pa., it was looked on as equipment. The passenger cabins of these a freak. After Mr. Everts flew the Cub planes will be structurally designed and propelled with his invention to New York, built for supercharging. veteran pilots looked astounded and re “At the present time our Douglas Sky- marked that “It can’t work but it docs.” liners are operating at levels between 6,000 Aeronautical engineers scratched their and 10,000 feet, and we expect to start heads, figured a little and then started operating the new Boeings at about this chuckling about the simplicity and sound level, ϊ-ater, when we have been able to ness of the mechanical principles embodied adapt the experience gained in high alti in the new development. tudes to the four-engined transports, and After the first tests it was found that the when the installation of the necessary equip WILL IT FLY? Everts propeller stepped up the speed of a ment is perfected, we will gradually start And how. flight» of over 1000 feet are com Cub “flivver plane” by 25%. The rate of flying at higher altitudes. mon with this remarkable new design— “With 3600 horsepower, the speed of the flights of 2000 feet are not uncommon. climb was increased one-third and the take off run decreased fifty per cent. In addi airplane will be in the neighborhood of IS IT EASY TO BUILD? tion the half-propeller eliminated vibration 250 miles per hour at higher cruising levels. You bet. The new SEMI-MONOCOQUE and gyroscopic action. “The new four-engined transports will be fuselage makes this airplane remarkably A contract for the purchase of six new equipped with berths for eighteen and seats Bimple to construct. No more tedious hours 32-passenger transport airplanes by Trans for eight when flown on night schedules, trying to construct a good fuselage out of tiny little sticks. continental Si Western Air, Inc., has been and with thirty-two seats when operated signed with the Boeing Airplane Company as day planes. They will be equipped to THE SPECIFICATIONS? of Seattle, Washington, according to Jack carry 3750 pounds of cargo in addition to 34 inch wing spread, 28 inches in length and Frye, president of TWA. the passengers. It is interesting to note weighing between four and five ounces. The new TW A transports will be pow that this cargo load is greater than the HERE IS A PICTURE OF THE KIT ered with four engines and will be the entire payload carried in the present day largest airplanes in service in the United twin-engined transport airplane.” States. The gross weight will be 42,(XK) ! pounds. Work on the first of the new TW A How to Build a Scale Model of the Super Skyliners has already started. It is Lockheed 14 planned to place them in service in the Make the entire plane of balsa wood spring of 1938. which may be purchased in any model shop Simultaneous with the announcement of or department store. If you wish to square the purchase of the new planes, Mr. Frye off the plans, making it easier for measur stated that TW A had ordered 36 additional ing, join the corresponding dots on the Wright G-100 heavy duty Cyclone engines border with straight lines. Each square to power the ships. Capable of producing will equal four square feet. Get dimensions This kit contains REAL BALLOON RUB- BER WHEELS. FINISHED MACHINE 1205 horsepower, the new Cyclones are the from plans. CUT WING RIBS. FINISHED FROPEL- most powerful air-cooled radial engines in Draw the side view of the fuselage first LOR. full size 36 x 86 plan, tail insignia the country in production. These engines and cut to shape with a jig-saw. Be sure sheets, plenty of live rubber, formed motor are the same as those being installed in the grain of the wood is running length hook. 5 vials of liquid, first grade clearly printed balsa wood and other items that TWA’s Douglas airplanes now nearing wise. Then draw top view and cut once make it the most complete kit on tho market. completion in California. Installation of more. Shave down the corners as shown four of the Wright G-100 Cyclones in the by the cross-sections with a razor blade or T H E P R IC E ? new TW A Boeing plane will give the ship small sharp chisel. Go over the surfaces ?2..r>0 Postpaid anywhere in the U. S. Ca a total of 4820 horsepower. with coarse and then fine sandpaper, and nadian and British Isle customers add 25 In all, the 77 W right Cyclones now on the fuselage will be finished. cents— other foreign customers add 50 cents —California customers add 3% sales tax. order for Transcontinental & Western Air Use the same procedure in making the AND LISTEN, if, after close inspection of will lie capable of producing a total of wing panels, tail, and engine cowls and this kit it does not meet your approval, send 92,785 horsepower. nacelles. it back and we will refund your money. In making the announcement, Mr. Frye Sandpaper all parts thoroughly once DEALERS: Write for our attractive prop osition. stated: more, then licgin the assembly. Lay the “The purchase of these planes which will fuselage in flying position on a flat surface C AND H MODEL AIRCRAFT be the first of the modem four-engined and join the wing sections to it with model Box 81 transports to go into service in this coun cement. Put blocks under the wing tips PACIFIC PALISADES, CALIF. try, is a step in a general expansion pro to give them the required dihedral. Join gram being undertaken by TWA. the tail in place next and when that has MAY MODEL AIRPLANE NEWS 1937 39 V 3 Η. P., 14 oz., the Most Powerful Model Motor per unit of weight. DEALERS! SCHOOLS! CLUBS! WHOLESALE PRICES Order Directly from this Complete List of KITS and SUPPLIES Save Time and Money— 24 Hour Service WE PAY ALL POSTAGE CHARGES* B A L SA W OOD WOOD VENEER 1" ...... Dozen .14 For 36" lengths, 20"x30" 3 For .20 13i»" ....D->zen . 19 2 2 5 F L ...... 4 0 L a r g e —f o r 1 a y · & double cost of 1 8 " BAMBOO l-V.»" ....D o z e n .2 5 3 / 1 6 F la t IV»" wheel·, VS size. Double 36" 2" Dozen .43 3 2 5 F t ...... 6 0 D o z e n ...... 6 0 price* for 3 ft. HARDWOOD NOSE Per Pound, Any CELLULOID RAO· GAS lengths. PLUGS S iz e ...... l .O u IAL MOTOR & ...... 0 0 D o z e n ...... 0 3 WIRE DRAG RING COM 1 8 " S tr ip » SANDPAPER 1 /3 2x1/16. .ΪΟΟ For J l Special Bound Bam .014 1O0 Ft. .25 BINATIONS boo (Splendid for 6 assort'd sheets to .016 IOO Ft. .25 1 3 F o r .4 5 1/10 So . . 300 For .11 p k g . 1/1 6 * 1 /3 . .2 ·» Foe .21 landing gears, wing .020 IOO Ft. .30 3 " D ta m . 3 F o r . 8 3 1 /1 6 1/4 strut», etc.) 1 2 P a c k a g e s ...... 3 4 .028 IOO Ft. .30 CELLULOID RAD- .200 Fur .41 1/10 Dl«m.xl2" COLORLESS CE .034 IOO Ft. .35 3 /3 2 S g .. .2 ·» F or .21 MENT (Suitable for IAL ENQINES 1/S 8*j. . . .200 F u r .31 D ozen ...... 07 1/10" Dtam. 1 Va" D lam .«» For .36 G ro ss ...... 7 2 Gas Jobs, too.) 23 ft. for „...17 l / S x l / 4 . . .21» For .« V i o z . B o ttle s ...... 2 " D la m . 0 F o r . 5 4 3 /1 6 S u .. .200 For .00 3/32 Di«l».xl2" 3 / 3 · D la ra . 3 " D la m . 3 F o r . 4 5 1 /4 S<1 . 105 F o r .12 D ozen ...» ...... 10 D o z e n ...... 3 5 t . f o r .5 0 V z 0 1 . T u b e s ...... SHEET CELLULOID 1 /2 8q . 40 For .10 G ro ss ...... 1 -0 0 121 V 'x 10" E ach. 19 1 S u ...... S F u r .21 D o z e n ...... 3 8 R E E D 1 o x . B o ttle s ...... · BUSHINGS 18" Sheets 1/10 Dlasn. D o zen ...... 3 5 BENT WIRE PROP. S m a ll ...... 1 0 0 .1 3 1 /Α 4 Τ Ϊ.. .2 0 F o r .14 6 0 f t ...... 1 3 1 oz. Tubes ...... SHAFTS Medium ....100 .20 1 /3 2 * 2 ...... 20 F or .11 D o z e n .7 2 D o z e n ...... 0 5 L a r g e ...... 10 0 .2 5 ...... 18 3 oz. Cans ...... ···· G r o s s ...... 5 0 THRUSTBEARINGS Λ W INNER, at Canadian National Air Meet, 1 /1 6 x 3 ... For .20 V i D o z ...... 8 0 ALUMINUM Small—Dozen .07 1 /1 6 x 3 .. .20 F o r M % 2 4 ( F t. c a n ...... 4 8 TUBING G ro s a .6 0 Indianapolis American Legion Meet, Chicago 3 /3 2 * 2 .. .20 For .21 DOWEL 1 Q u a r t ...... 7 8 1/10" O.D. O Ft. .30 Large— Dozen .07 3 /8 2 * 3 .. 1/10 Diftm.xl2" 1 G a llo n ...... 2 . 0 0 3/32" O.D. 6 Ft. .32 G r o s s . 7 0 Aeronauts Go» Model Meet. ...20 For .28 - 2 D ozen...... 15 CLEAR DOPE or V%" O .D . 0 F t . .3 5 M O D EL P IN S I/Sk3...... 8 0 F i r .46 Vs Diam.xi8" THINNBR 3/16" O.D. 6 Ft. .43 By using a more powerful motor, your 1 / 4 * 2 ...... 80 For Λ2 12 Packages ...... 4 0 2 D o z e n ...... 2 3 Same Price» as ce V4" O.D. 0 Ft-.30 IN S IG N IA S chance» for success are many times greater. 1 / 4 * 3 ... .-.2 0 For M 3/10 Diam-x86" 12" WIDE SHEET 1 / 2 * 2 ...... 20 For .76 1 D o z e n ...... 3 6 m e n t. S h e e t s —2 4 I n s i g The few extra ouncea mean but negligible COLORED DOPE ALUMINUM nias. rudder stripe· 1 / 2 x 3 ...... 10 Fox .75 1A Diam.x36" (All Color») . 0 0 3 ...... 2 F t . .2 0 additional wingloading, but the extra power ' I D o z e n ...... 4 0 —4 c o u n t r i e s . 18" Flank Balsa 1A oz. Bottles . 0 0 3 ...... 2 F t . .2 4 D o z e n ...... 3 6 and reliability often mean the difference be BALSA CARVID D o z e n ...... 4 5 . 0 1 0 ...... 2 F t . .3 1 lxl 4 oxfh ...... 05 PROPS. Cutout: 2" Dlam. 2 tween crack-ups and happy landings. LITTLE 1x3 e*ch...... 08 1 oz Bottles A L U M IN U M D o z ...... 1 8 1x3 w u l i ...... 10 5 " ...... D o z e n .3 0 D o z e n ...... 6 5 HERCULES is designed for planes from 7 0 " ...... D o z e n .3 8 L E A F Cutout: 3" Dlam. 2 7 " ...... Dozen .48 3 o z C a n s . 0 0 0 3 8 « A " D z ...... 2 3 to 12 ft. wingspan, and is the most MODERN nrh. Μ» D z ...... 6 0 Wide 50 Ft. .20 o»«h 8 " ...... D ozen .5 0 (Pt. Can...... 7 0 TRU-CUT BALSA MOTOR of today, with BALL BEARING rorh. 10» DtK .40 1 Quart ...... 7 3 KNIVES 1 2 " __ Ms D oz. .3 3 D o z e n ...... 8 3 crankshaft. LO-EX aluminum ALLOY PIS ittrti. 1 Gallon .... .2 .2 0 N.A.C.A. ALUMI each. PAULOWNIA WOOD MODEL DOPE Extra Blades TON and TWO PISTON RINGS. HAND ■ CARVED BRUSHES NUM COWLINQS 3 D Z...... 8 5 Balsa Propeller 1 M |" .... 3 F o r .2 3 PLANS B lo c k s STANDARD PROPS. Small, Dozen ...... 1 0 2 " ...... 3 F o r .3 5 Write for complete details. 15" ...... O F o r .2 5 G r o s s ...... 7 5 P l a n i t o 3 6 " F l y Mix 5 Dz. .05 6 " ...... 6 F o r .3 0 Regular Size. 2Vi”.... 3 For .43 ing Sea Curtis· ι/o x A j x 0 D z . .0 7 t » ...... 6 F o r .37 2 D z ...... 5 0 3 " . ------3 F o r .5 3 Army Hawk, Spad. lAx A-ix 6 Dz. .OH 8 " ...... 6 F o r .5 0 BAMBOO PAPER ALUMINUM DRAG He Monocoupe per FDR5TER BROTHERS IfcX lx 7 Dz. .14 RINGS D o z e n ...... 7 3 319 LAKE STREET. MAYWOOD. ILLINOIS 1 0 " ...... 3 F o r .3 3 24"x36" Sheet aix lx 8 Dz. .18 1 2 " ...... 3 F o r .3 7 1 D z ...... 4 0 lti".... 3 For .25 MACHINE GUNS %*Hix „ 1 5 " ...... 3 F o r .4 5 JAPANESE TISSUE 2 " ...... 3 F o r .3 5 (D ie e a s t) lO ...... D z . .2 0 G A S P R O P S . 2 < )"x 2 4 " 3 " ...... 3 F o r .5 3 a/ι" ....Dozen .23· A*xlVi* 12" ....3 For 1.80 White ....Dozen .12 CELLULOID lU*" ... Dozen .55* 1 2 ...... 1 /jD o z . .2 2 13” ....3 For 1.80 Colored ..Dozen .15 WHEELS la,·' ...Dozen .64 IX lV fe x 14" ....3 For 2.00 Stiver ....Dozen .36 5 2 " ___ 12 For .20 B o m b s S a m e P r ic e » · MODELS WANTED 1 2 ...... i-fcD oz. .3 0 IB" ....3 For 2.00 RUBBER . F o r .2 3 l x l V ^ x iK 1 2 INSTRUMENT Wanted! Assembled model airplanes and model 16" — 3 For 2.25 PANELS boats. We pay trora $10.00 up. For application 1 5 ____ 1/2 Dz . .3 2 17" ....3 For 2.25 821 .2 5 12 For .45 Sheet contains 12 blanks, more information, handling and postage, Balsa Nose Block* BALSA OR HARD C E L L U L O ID dilTerent lnstru- send dime (coin). (If the prices we pay for your 1 "x2"x3" C For . 11 WOOD WHEELS WHEEL PANTS ment board». A size I"x3"x3" 0 For .18 M »" ...... D o z e n .0 7 Small—for IV ' * for ever»' model. 1 2 models don't satisfy you we will gladly return 2"x2"x2” 6 For .15 3/S" ...... D o z e n .OH H i " w h e e l s VS • h e e w ...... 1 3 CO n ) NATIO NAL SA LES CO. KITS—40% BELOW RETAIL PRICES—KITS 276 Cedar. New Haven. Conn. SOLID» SCALE MODEL KITS GLIDERS ular models: Ryan Sport Trainer, JVino Span. Exact in every detail. 6" All-Balsa Stunt Gliders GrossSl.OO Hawk POE, Rearwin Speedster. Fok- Kit* complete with body block print —Five Oioss ...... $ 3 . 7 3 kor D8. Monocoupe DOA, Fairchild ed. These fine, popular models: Gru 15" All-Balsa Distance Gliders. Doz- 1)22, Htearman 73. Nlcuport 17. man Fighter, ^tcechcraft, Curtiss en 33c—Croat ...... * 3 . 2 3 D o z e n ...... S I . 6 0 dried put the engine nacelles in place. Goshawk, Berliner. Joyce, Mister FLYING MODEL KITS ¥ · " Flying Scale Kits. 22" to 32" Mulligan. Lockheed. Sirius. Hughes 13" All Balsa Kit»—new—easy to Wing .Spans. De Luxe kits: Finished Racer. Waco V-OC. DOZEN ...... 7 5 build—Fairchild. Monocoupe, Stinson cowlings, wheel* pant», prop., etc. Shape out six small prop blades from 6" to 8” Win® Span. Complete kits Reliant. Taylor Cub, Dozen ...... * 1 . 2 * True to scale. These types: Stinson contain paint*. Waco Biplane, Sikor· 12" All-Balsa "Sky.King" R.O.G. Reliant. Mr. Mulligan. Monocoupe scrap wood with your razor blade. Using skv, Savoia-Marchpttl. Kairctiild 24. kits. Wing & Tall parts cut to size. βΟΑ. Warn Cabin. Maccbi-Castoldl. Northrop Gamma, spad, Hawk Γ6Ε, carved prop., etc. Dozen ...... 7 * Curtiss Hawk, Curtiss-W right Osprey. two small pieces of wood as hubs join three Hell Diver. DoHaviland. Howard Rac 12" Flying Kits. Spad, Monocoupe. Boeing F4H4. Six ...... * 1 . 6 0 er. Texaco “ S.” Boeing P12C. SE 5. Fokker D7, SE3, Taylor Cub. ■*“ ■•Skyabillty'· — ‘ blades to each one with cement. Connect Fokkel'DT. Sopwith Triplane. Supcrma- D o z e n ...... 6 0 • a 1 0 ” h a n ______nne. Lockheed Vega. Nlcuport. Pfalz. 15" line of flying scale kits. Vervllle Wood prop In every great, complete these to the front of the nacelles with pins. Albalros. Gee Bee Sportster. Dozen...75 Air Coach, Heath Midwing. Fairchild kit. These popular model»: Mono Smilin’ Jack Kit*. Planes used by 22, DIM Mailplane. Barling K84. coupe. Curtiss Hawk, Spad. Three When all parts are put on, sandpaper the the comic character. Stratoplanc. C a r v e d p r o p s ., e tc . D o z e n ...... 7 2 f o r ...... 8 1 .8 0 Air Taxi. Flivver Plane. Cabin Fliv 16" Flying Kit*. These complete, 36" to 48" Wing Spans. New. popu ver. Dozen ...... 7 5 fine model·: Corben Ace. Curtiss Fal lar ••Giants.·' Kit» complete: Win model once more and fill up all connections BOAT MODELS con, Hawk P6E. Robin. C-W Coupe. nie Mae. Sop. Camel, Curtiss Rohm. New!! 10" Queen Mary kit. Detailed. Boeing P26A. Great Lake* Tr., Con T h r e e ...... S I . 8 0 with cement. a c c u r a te . T h r o e ...... 4 3 solidated Tr.. Fleet Tr., Chester Rac 12" Boat kits: Normandie. Flying er. New Aeronca, Sparton. Dozen .75 Paint the model silver with white win Cloud. Galleon, Constitution. De- 13" tolS" DeLuxn, Super Value Kits. stroyer Preston. submarine Chaser. Retail at 25e. Fairchild 24, Puee Ordering Instructions dows. Many coats will have to be applied D o z e n ...... S i .S O Moth. U.S. Army Trainer, wiioy Post 13IV Seth Parker Kit. Λ fine boat Model A. Dozen ...... * 1 . 2 5 before a smooth finish is obtained. A small model. Three ...... ••••■••••■*0 New 23" Flying Scale Kits. Kite 1. Minimum order— S5.00 18" De Luxe Queen Mary kit. Fin complete In every detail. Cessna. 2. We pay all shipping charges, stand may be purchased or made for the i s h e d h u l l . e t c . E a c h ...... 6 0 Curtiss Robin. Taylor Cub. Bellanca 19" Yankee Clipper Kit. Famous kit Skyrocket. Rearwin Speedster, Amer except on liquids and kits, which are always In demand. Each ...... 6 0 ican Eaglet. Stinson Reliant. Kinner sent express collect. model. READY-TO-FLY PLANES sportster, Fairchild Low wing. Por- *3. Remit with order. Cheek, money 14" All Balsa R.O.O. Entirely built. te rfie l-l. D o z e n ...... S I . 6 0 order, or cash (at your risk) accept Ready to tnke-ofT and climb. Fastest 26" Flying Kits. Carved prop. Nose able. selling tiling In the model field. etc. The most outstanding Build and Fly the Westland D o z e n ...... — ...... - ...... S i .00 1 value ever offered. These pop- SEND FOR OUR GAS LIST Cooperation Plane MODEL AIRPLANE UTILITY, Dept D-5, 5307 New Utrecht Ave., Brooklyn, N. Y. (Continued from Page 21) Covering and Doping number of pieces of tissue rather than one sure that they are in the right position and It is best to cover each wing section with or two because of the elliptical shape of that they are on “straight." The cowling two separate sheets of white tissue. One the fuselage cross-section. It is recom can also be cemented onto the fuselage and sheet will cover from rib A to rib D on mended that you cover one or two sections then it is best to let the model set for both the top and the bottom, while the at a time. When we say section when re awhile before putting on the wings. The second sheet will cover from rib D to H ferring to the fuselage we mean the distance wings are cemented onto the short longeron and if the paper will go on smooth this between two longerons. The cowling is that runs on each side of the center one on sheet can be continued to the tip. Begin first covered with a piece of 1/32" sheet top of the fuselage between formers 2 and to cover the wing at the top of the trailing balsa and then covered with tissue. The 4. See the plans for the exact location. edge, bringing the paper forward down entire plane is covered with white tissue. While the plane is drying, the struts can be over the leading edge and back to the lower It may be left this way if a real good flying made. They are cut from a piece of balsa side of the trailing edge. If the paper is model is preferred or it may be doped all 1/16" x J4". -Sand to a good streamlined glued only at the trailing edge it will tighten silver. shape and cut to the correct length. This up very well alter the water has been ap length is best determined by continued fitting plied. The tail sections are covered with Assembly of the strut until the correct length has a piece of white tissue on each side. It is After the covering job is completed to been obtained. The wings are given a 5/16" only necessary to put banana oil on the your satisfaction, start putting the model dihedral angle although the angle in the edges of the tail pieces when covering together. Begin by cementing the tail sec real ship is zero due to the great natural them. The fuselage is best covered with a tions in position. When doing this make stability obtained through the use of gull MAY 40 1937 —' MODEL AIRPLANE NEWS nose, in which case some lead shot may be FLY-A-WAY GLIDERS AND MOTORPLANES glued inside the cowling. This model is something to be proud of as it flies grace CONSTRUCTION SETS fully in circles until the power gives out and then it noses down slightly into a long FLYING & SHELF SCALE MODELS flat glide and a three-point landing almost All kits complete No extras to buy every time. If the builder has any trouble constructing this model or in getting it to fly, please write the author in care of this 24" Flying Model Construction Sets magazine. 181 Mr. Mulligan 191 Kinner Envoy 27‘/2" Material List 182 Kinner Sportster 192 Rearwin 29” 1—1/16" x 2J4" x 24" sheet balsa bulk 183 Ryan Sportster 193 Stinson SR 8C-29* heads 184 Seversky Sev. 3L 194 Bdlanc* 29“ Ι8ό Consolidated P 30 195 Aeronca C3 29* 1—1/16" x 2" x 24" sheet balsa wing ribs, 186 Fairchild Warner 22 196 OeWoltine 29* 8 " Shelf Model Construction Sets tail pieces 1— }/&” x 2" x 12" landing gear legs 2 sets 60e Postpaid U. S. A. N 38 Art Chester Racer N 44 China Clipper N 39 Vulteo V -ll N 45 Hughes Northrup 15—1/16" x 1/16" x 18" strip balsa N 40 Flat N 46 Brown Special longerons 16" Flying Model Construction Sets N 41 Lockheed Eleetra N 47 Northrup Attack 1— 1/16" x x 18" strip balsa tail out N 42 Stinson Reliant N 48 Hawker Fioliter lines F 38 Art Chester Racer F 44 Brown B3 N 43 Aeroneer N 49 Seversky Pursuit F 39 Curtiss Coupe F 45 Aeroncer 2 sets 35c Postpaid U. S. A. 2— %" x y4 f x 18" strip balsa leading edge F 40 Vulteo V -ll F 40 English Puss Moth 2—1/16" x l/4" x 18" strip balsa trailing F 41 Fairchild 24 F 47 Fokker D 8 No. 60 Twelve Inch Model edge F 42 Curtiss Falcon F 48 Polish Fighter New Laminated Construction F 43 Boeing F4 B4 F 49 Spad 2— 1/32" x 1/32" x 12" strip bamboo CHINA CLIPPER cockpit details 2 sets 35* Postpaid U. S. A. 35c each Postpaid U. S. A. 3— 2y$" x y4" x y2” pine block scale prop 1—6 V ” x I 4 6 " x H" medium balsa flying PAUL K. CUILLOW WAKEFIELD, MASS. prop 1—26" x V” x V” hardwood or pine nose rn JDTC GAS M0DEL wings. The bottom of the struts are ce block L DC It Id SUPPLIES mented on landing gear leg while the top 1—1H” x 1" x 1" medium balsa tail plug is cemented to rib number D. The plane Miscellaneous Items • READY FOR IMMEDIATE SHIPMENT can now be given a coat of water of room temperature using a spray gun. When the 1— 1 oz. cement Balsa or Spruce 2— ounces banana oil (paper cement) •ix'e ...... 5 for 10c model has thoroughly dried, some builders ...... —.5 tor 160 1— 1 oz. acetone ...... 5 for 20c may wish to further tighten the covering 16x3/16 ...... 5 tor 20c 4— 1 y2" insignia (British) ...... 5 for 26c by applying a solution of 50% banana oil 3/1fix' ...... 5 (or 26c and 50% acetone with a brush. If the model 2— 26" insignia (British) .1 6 x 1 ...... -.5 for 40c 1—12" .028" piano wire V4XY4 ...... 5 for 20c is intended for scale purposes oniy the 1 X : ....- 5 for 30c 1—brush '/4XI 3 for 40o builder should give it a coat of silver dope. 4 for 30e 1—8 feet V" flat rubber 3 for 30c The numbers for the fuselage sides are ,xl 2 for 30e cut out of the plans and using banana oil 1—1 sheet white tissue I tor 26o 1—yz sheet black tissue (for numerals on Sheets 3 in. Wide are cemented to the fuselage sides just to I 16x3 I tor 12c wing) 3,32x3 I for 15c the rear of former number 5. The wing •8X3 I for 2Uc 1—1 sheet cellophane 6" x 12" II.X · numerals can be cut from a sheet of black lo r 30C tissue. The wing cockades are of the I—pr. balsa wheels Vi X 3 I for 68c 6—washers (brass) 36 inch lengths */j price of 5 ft. lengths British type and the size is IV" diameter 1—ounce silver dope (for scale model No orders accepted for less than $1.00. Add while the fuselage cockades are 26" diame 10% for part cost of packing and mailing. All only ) orders for $5.00 or more will be sent p o s tp a id . ter. The Propeller and Flying EBERT MODEL SUPPLIES Designing Your Model For Distance 442 N. W aiola Ave., Lagrange. Illinois The scale propeller is three-bladed and (Continued from page 17) each blade is carved from a separate block of pine 2^6" x V" x / t ”■ These blades are inches long, the span then will be twenty- cemented to a J4" hub which is 5/16" long. seven inches. This is the maximum ad The flving prop is carved from a single visable span if straight flights are desired. block of balsa 6 V n x \H" x y4". The flying prop is only a standard two-bladed Chord job. Lay out the block as shown in the The chord of the main wing should be plans and carve away the darkened sections. comparatively large in order that the wing Sand the prop well and make it very care will have sufficient area to support the fully. Many builders arc disappointed when weight of the model at a reasonably slow their models won’t fly and usually the cause flight speed. A chord of 4.25 inches will can be laid to a badly carved propeller. give an aspect ratio of slightly more than Make the rear and front hooks from .026" six. This fairly low aspect ratio can be piano wire. The rear hook is imbedded in tolerated if the wing tips are carefully the tail plug and the front hook is attached raked. The eliptic form of wing tip is The 1937 WEST WIND to the propeller. It is recommended that advisable because of its high efficiency. “Wo have engineered lids model to give you all the builder use three or four loops of Tnis wing proportion will result in a wing weather performance In a ship that I» easy to flat rubber of the best quality procurable. area of about 108 square inches, allowing build, modern in design, and in a complete kit.” When strong breezes have grounded other It is always best to pay a little more for the (7 square inches) as being lost by round models, stable 24" wing span West Winds are best than to buy some cheap substitute ing or raking the wing tips. swiftly spiraling skyward, then lazily riding air currents. which will continually be breaking and For all weather flying model performance ask more than likely ruin a model which has Camber your dealer for a Monarch Kit. Write for catalog. taken many patient hours to build. The correct value for the wing camber West Wind kit. $1.00 Postpaid. Fly the model in a field where there is must be determined next. On distance Combat kit 50c plus 10c postage. some tall grass to break the fall of the models very little camber should be used. MONARCH MODEL AIRCRAFT CO. model if it is not adjusted right at first. A value of 1/16th to l/14th the wing 4955 W. 113th Street. Inglewood, California The model may need a little weight in the chord gives best results when single sur- MAY MODEL AIRPLANE NEWS -----*{ 193 7 41 <£up en.- (B^uccariee^" Highly improved streamline version of the world-famous “Buccaneer," winner of three major contests in 1936, three places in the 1936 N.A.A. Nationals, holder of the official world’s open record and three unofficial records. Not satisfied with the brilliant record of the old ‘‘Buccaneer,” Berkeley’s staff continued redesigning and making small changes ordinarily neglected by model builders and designers. The result is the new ultra-modern “Buccaneer,” by far the strongest model for its weight, and unequalled in performance. BERKELEY’S MIRACLE IN MODELS Stressed for T W O Horsepower Yet will climb steadily with a Brown Junior at half throttle. A 20 to 1 glide with a three point; landing every time. Exclusive Features: 1— Entirely new fuselase structure design. The equivalent strength of lour ordinary structures. iVz foot Wingspan ANNOUNCING 2— Proper *ire*sing. Extremely strong where strength Is needed. Wing Chord—14". The New Improved 3— Exclusive Berkeley designed and improved airfoil Overall with Length—59". perfect characteristics for gas model*. Weight Ready-to-Fly with Brown $ 4— Double Warren Trussed spar, full cantilever wing weigh Junior power plant—5% lbs. ing only 12 ounces complete. Recommended Power— J to J h.p. 5— New type of wing tip for minimum turbulence. 6— Wing mounted with rubber thread INSIDE of fuselage. COMPLETE KIT:— Introduced with the new "Buccaneer,” the 7 -Simple internally braced all-wire landing gear Including EVERYTHING to build the model except power two make an unbeatable combination. The 8— ltemoveable tail surfaces that cannot lose their adjustplant and wheels. K it includes:—Rib* and bulkheads new Brown Junior hus a specially built tank ment. printed on wood, all wood specially selected and accurately that can be taken apart and cleaned, and 9— Insulated motor mount which prevents Inside of fuse cut: pint can3 of cement and colored dope; tubes of eerr.cnt which will feed gas at any angle of climb. lage from becoming oil-soaked. for covering; wire for landing gear; wood for motor mount No extras to buy. Shipped ready-to-run with 10— New long-range visibility chrome-cream and red colorand battery box: toggle switch: aircraft ignition cable; 13 page in stru ctio n book. design. (Other color schemes optional.) bamboo paper; full size plans and instructions. 11— Only streamline, improved cabin gas model. No Increase In Price $21.50 SB .50 POSTPAID IN U.S.A. Postpaid SPECIAL: Complete K it (as above) including 4H r & 3Λ. Wheel*. Complete plana for the “Buccaneer.” full —(12.00 Postpaid in U.S.A. for details. * tali tic size, four M r sheet* with complete in 50 •DKine. Up to $15.00 structions and bill of materials. Over 30 allowance on old Brown Junior Motor*! square feet of accurate detailed drawings. Complete K it (as above) including Brown Jr. Motor. M. & Worth double our price. P.P. M. Wheels, and special design laminated propeller.—■ 1 Special Combination Price—$31.50. Postpaid in U.S.A. Complete Model Ready-to-Fly:—Test hopped, with full Instructions. Custom built to order. B e r k e l e y M o d e l S u p p l ie s $125.00 crated. F.O.B. Brooklyn. N.Y. DEMONSTRATION:— “FIRST IN GAS MODELS" We will be glad to demonstrate the new “ Buccaneer" 53 BERKELEY PLACE Dept. U-25 BROOKLYN, N. Y. at contests held within 100 miles of New York City. face wings are used and 1 /14th to l/12th medium camber section such as the Clark Angle of Incidence the chord when the wings are of the double Υ, that gives a high L /D ratio, but is at The angle of incidence of the rear wing surface type. the same time a medium speed section, he of a twin pusher distance model should be Many readers may wonder why a higher may use this section and be sure the results from zero to two degrees positive. Usually camber is not used in order to reduce the will be satisfactory. The reason why high the wing is placed directly on the same speed of the plane. There are several rea lift sections are not advisable is that their longerons, approximately on the line of sons. First of all, a low plane speed is L/D ratios are usually comparatively poor, thrust not as important as a low propeller tip and the propeller blade area has to be made speed, for the lower the “prop” tip speed excessively large: not because of the high Elevator (Front Wing) is, the more the power, which is stored in camber alone, but because of the combina On any twin pusher the weight of the the motor, is converted into thrust instead tion of high camber and the high propeller airplane is supported partly by the rear or of being wasted by covering distance at a pitch which must characterize a good main wing and partly by the smaller front high speed. More total distance can be model. High pitch, in the first place, re wing or elevator. The purpose of this ele covered by the plane at a slow propeller quires large propeller area in order to make vator is to stabilize the model. This sta tip speed than at a high tip speed, with less it effective. bility results from the difference in relative power required. So it seems that the average distance lift between the rear and front wing at The object, therefore, is to obtain as high model will he a comparatively fast airplane various speeds. At high speed the front a plane speed as possible compared to the because of the necessary high propeller wing lifts relatively more and at low propeller tip speed. If fairly high plane pitch, even though a slight loss of power speed relatively less than the rear wing. speed can be produced with a low propeller efficiency results because of increased para Such action is secured by placing the front tip velocity then you will have a very effi site (structural) resistance due to the wing at a greater angle of incidence than cient distance model. higher speed. The whole situation hinges the rear one. Usually the angle is about This means that for any given unit of on the fact that the loss due to high speed two degrees more. Because of this larger power expanded the airplane will travel a is not as great as the loss of aerodynamic angle of incidence the lift of the. front wing long distance forward. This naturally efficiency and increased weight due to high is larger per square inch than the rear one. makes long flights. Thus in order to re wing camber and excessive propeller blade Thus it may be smaller and yet lift an duce wing head resistance and to be as area. equal amount of weight. It is also less sured of a high lift to drag ratio a low efficient due to its large incidence angle and camber is required, for a low camber not An important factor which favors a it is advisable, therefore, as well as pos only gives a low total head resistance but comparatively high speed is the necessity sible, to make it quite small. a high lift relative to the drag. of a straight flight. The higher the speed, The best results are obtained if it is If, in his search for suitable wing sec the less the air currents or gusts will turn made with a span of about 35 per cent the tions, the model designer comes upon a the model from its straight flight course. span of the rear wing. In this case its MAY 42 1937 MODEL AIRPLANE NEWS span would be 35 per cent of twenty-seven small. Practice has shown that a propeller inches, or 10 inches. The maximum diameter of ten inches on a distance model Piek Your Next Job chord should be about one-third the span, of this size is about the right amount. The or about 354 inches, provided that the two props should be ten inches each, from from these IDEAL tips of this smaller wing are raked or the tip to tip. whole wing tapered, as shown in Fig. No. Pitch 126. If a straight wing is used the chord should be about 28% of the span, or 2J4 The next characteristic to be determined inches. The tips of such a wing should be is pitch. It is very important in a distance rounded. Best results, however, are given plane that the pitch should have a very 100% Seale Models by the tapered type of front wing so it high value. This is required in order that Build one of these beautiful IDEAL “Supor- should be used on your distance plane. they may revolve slowly and not have a Detail” Flying Models : each one accurately designed by flying men. with cockpit oper The wing section should be the same or high tip speed; for the slower the tip speed ated controls and other exclusive features. similar to the section used on the rear wing. the more the power of the motors will be Pick from the list below. Ask your dealer or send the order direct to us . . . . This small front wing, though less effi converted into distance travel. cient than the rear one, performs a very On the other hand, if the pitch is very important function. It provides directional high excessive blade area will be required. stability as well as longitudinal stability. This not only adds weight but causes great This means that it helps the model to fly drag when the plane is gliding, even though a straight course; an essential quality of free wheeling propellers are used. There the distance plane. It does this by means fore, a happy medium for the pitch value of the very large dihedral which should must be selected. Practice has shown that a pitch equal to about twice the propeller BOEING P.26-A—Wingspan 21V. Length 18*. be given to it. Each half wing should be Weight 214 oz., V Scale. Color* Olive Drab and raised so that it forms an angle of about diameter is most efficient. A pitch of (2.2) Yellow. Complete Kit ...... _...... $1.75 MARTIN BOMBER Wingspan 35*. Length 23V . thirty degrees with a “horizontal” line times the diameter has been used very suc Weight 434 oz., exact Scale. Complete Kit, 33.50 cessfully on many models. RYAN 8 T—Wingspan 2234". Length 16V4*. Weight passing through its center section (Fig. 214 or., V Scale. Complete Kit ...... SI.50 No. 126). As the diameter of the propellers is to CURTISS GOSHAWK— Wingspan 23 V . Length be ten inches, the pitch should be from 10** v. W eight 3^0 oz., V Scale. Complete Kit 52.00 Its best location on the model is a point STINSON RELIANT—Wing*pun 32 5 1 6 \ Length twenty to twenty-two inches. A pitch of 2134*. Weight 3to oz.. V Scale Complete Kit $2.50 very close to the front end of the “vee” Kite Postpaid East of Denver. twenty-two inches is suggested, especially West of Denver. 25c Extra for ro«tage.______frame. It may be placed directly on the frame at a four degree angle of incidence if you are looking for an interesting and Build or raised above the frame as a parasol enlightening exiicriment. wing, an amount equal to about one-tenth Blade Area Model its span. In this case its angle of inci The last factor of the propellers to be dence may be one or one and a half de determined is blade area. As a very high Ships! grees less. The high center of drag of climb is not required, a medium amount A dandy hobby and the parasol setting creates a nosing up of blade area (relative to the pitch) may easy for all build ers of Model A ir tendency under high speed, similar in effect be used. The blade area of propellers on planes! to the difference in angle between the rear tractors when the pitch is \ l/t times the Sailing Clipper* CUTTY SARK and front wing. If the rear wing is set at propeller diameter should be about 10% anti (0°). the front wing may be set at ( TA° ) of the wing area for average conditions. S O V E R E IG N to (1°) positive angle when it is “para As in the case of the speed twin pusher the of the SEAS soled.” wing area to be used as a basis of propeller 24 in. Modela Propellers area calculation is determined by adding C o n p to te ? Now we encounter the most important together the area of the rear wing and part of the twin pusher distance plane de twice the area of the front wing. The area K its contain Carved Wood Hull. Wood Decks, ail F it sign. and that is designing the propellers. of the rear wing is 108 square inches. The ting*. Rigging and decorative Lacquers with Plans and front wing will have an area of about Instructions. The first characteristic to consider is the U. S. Destroy*r PRESTOX diameter of the propellers. The value of 24 square inches when the span is 24 in. Super Detail Model Fully Carved Wood this is governed by several factors. First nine inches and the average chord is two Hull. Complete Kit with Plans Plus 15c of all, by the amount of pitch to be used. and three fourths in., the tips being rounded. and in stru c tio n s.^ ...------Pontage We know that the propellers must have a The area will be the same if the wing is elliptical with a span of ten inches and a - ---'V·. 18 in. Model high pitch in order that they will turn Steam ship slowly and yet have the plane cover a maximum chord of 3% inches. So the Q IE F A large distance per revolution of the “props.” effective wing area for blade area compu MARY It is wise, for the sake of efficiency, there tation will be f 108 -f- 2 (24)] = 156 square fore, to have a large diameter so the blade inches. (Contest classifications are based K it con on the area of the rear zving only, in dura tain* fully shaped c -m angle at the propeller tips will not be "Redl-Form ” Hollow Hull with all v | tion events.) Peru. Materials and Supplies to JL excessive. A very large blade angle beats id un:i decorate the Model. the air if very large blade area is not used. Now as the propeller pitch is to be 2.2 I.airge Size, RoUuxe Scnlo M odel* However, a large propeller diameter will times the diameter it is obvious that the R. M.S. QUEEN MARY 31·/» «η. long & * > P o r te d blade area (total) will have to be much S. S. NORMANOIE 32·.·* in. on0 W(,tt 0 face wings or 1/12 the chord for double surface ones, the answer given by the formula will have to be multiplied by (0.75). It may be worked out as follows: Γ156(22)λ/22 _ ~ L Λ = 0 [_1.5(10)\/1.5(10) J [ 3432(4.7)1 °·0/;5[ 15(3.85) J = 0.075 (280) = 21 square inches of A M lv a l total propeller blade area. As there will be two propellers on the model, each pro F lyer peller should have a blade area of 10.5 1 V S Rubber square inches. In order that each pro W heels peller will have this amount of blade area, Fail-Proof Ldg. G ear it must be cut from a block the dimensions 28"x34" Plans of which are 10" long, lfV" wide and 1" Cutout Prop Blank deep. These dimensions are determined by Ex. lid. Balsa tage, Spec. Wire, Bam 30c ex tra solving the following formulas as described boo, Paper, and all the necessary in previous articles of this series. The supplies. formulas are: Aluminum for Cowl EGOW'S w — ^ ^D, and (a) • I V e w («as Powered Wingspan 67" Length 47" Solve for (w) in the first formula and MODEL substitute its value in terms of (d) in place of (w) in the second formula. Here’s a model kit that saves you weeks of experimenting . . . one that lets you The propellers should be cut from me use any engine you prefer. Easy to carry in automobile or street car. Wheels dium hard balsa blocks, using the diagonal well forward for safe landings. Rudder adjustable. Stabilizer semi-adjustable. method which gives a helical pitch pro Designed so that motor can be removed easily. Send 5c for new' catalog showing peller. One should be cut as a right hand hundreds of airplane and ship models. propeller and the other as a left hand one. The tips should be rounded. k A Dept. MAf Howard & Oxford Sts., I V I E W V VY 3 Philadelphia, Pa. Motors Chicago Office and Warehouse: Dept. MA, 627 Lake St., Chicago Each propeller should be driven by a motor composed of from ten to twelve strands of brown rubber, each strand of RECORD BREAKER! which is x 1/30" in cross section. The Picture No. 12, which show's Mr. Lilly number of strands required will depend on and Bob Sinnitt battling with a motor of the weight of the model. one of their ships, confirms this idea. We If your distance twin pusher is built as arc indebted to Mr. V . C. Gracia of outlined here, its performance should be “Xenia”, Southfield Road, Plumstead, Cape hard to beat. Province, South Africa, for this picture and information. By looking closely you will see four or five models on the ground, Airways—Here and There waiting to be flown. Those familiar with model flying in the city will find it hard (Continued from page 26) to imagine this scene taking place at Van Australia Cortlandt Park or some other municipal Picture No. 10 comes through the cour location. One would not be able to see the tesy of Mr. Ivor Freshman of 67 Liver models for the crowd. pool Street, Sydney. Australia. It shows Mr. Gracia is a member of the South a group of model fliers at the contest be African Model Airplane Club, and he says: tween Bundaberg and Maryborough. These “Some of the beginners are flying their two districts are in Queensland, Australia. stability planes, built from data obtained Mr. F. Therkelsen is largely responsible from Mr. Grant’s articles, in terrible fly for the good work carried on here by these ing weather just to show' their pals what Greater Power-Less Weight! clubs. A great variety of models appeared can be done. This is how we get new Man. licrc’e power—speed—-THRILLS! For your model lane, why not install the motor that holds every major at the contest and some of them arc shown members.” ight record for 1934 and 1935? The ewcllest little precision in the picture. job that ever took a plane soaring upinthedoud*. Mo other New Zealand likeit forcon*i«tcntj>criorniancc—none gives us much powet per unit of weight. Weighs only 6JA ounces hare; yet devel England New'S comes from Mr. W. B. Mackley of ops 1200 to 10,000 R.P.M. and delivers 1/5 horsepower. Complete, with no extra* to boy, only $21.50 postpaid. Mr. John Pearce of 26 Elms Road, 8 Ascot Avenue, Remuera S. E. 2, Auck Send for yours today. Clip the coupon now ! Heaton Moor, Stockport, England, who is land, New Zealand. He is club secretary secretary of the Lancashire Model Air of the Auckland Model Aero Club. He JUNIOR MOTORS CORPORATION, Dept. 30 craft Society, sends us picture No. 11, says that a series of flying contests were 2545 N. Broad Street, Philadelphia, Pcnna. showing his biplane “Fantom” before it Q I enclose Post Office money order for $21.50. Plcaso held in January by the North Island and ship me prepaid at once your BROWN JUNIOR was covered. Mr. Pearce upholds the repu Northern Districts Model Airplane Asso MOTOR a* described, with all necessary information to tation that British builders have for neat guide me in correct installation, and monry.hack guar ciations. The weather was poor which antee of performance. construction. He says the model has an av accounted for some poor flights. The re Π Rush me detailed information, specifications, pricce, etc., erage performance of fifty seconds. The sults of the various events w ere: oa BROWN JUNIOR MOTOR, the champion of model construction is almost entirely of balsa plane flights. T. Chennery Brown wron the Glider H. wood. L. Event with a time of 47 seconds. The PRINT NAME...... South Africa Auckland Provincial Championship Cup ADDRESS______Africa has never been noted for crowds. Event was won by R. Court with a 2 min., CITY______STATE_____ MAY 44 1937 MODEL AIRPLANE NEWS 1% sec. flight. The Star H. L. Event cerning the proposed annual Connecticut rules of that contest from C. Donald Mc was won by W. B. Macley with a flight Model Airplane Contest. It will be held Kelvie, at the Hartford Y.M.C.A. All o £ 2 min., 11% sec. Mr. Macklev, with at Rentschler Field, East Hartiord, on contestants will be under N.A.A. rules. a total time for three flights of 213% Saturday, June 5th. There will be a Junior and Senior classi seconds, (best time 1 min., 56% sec.) also ‘’This year, in addition to the regular fication in the flying and scale model won the Hodge Championship Trophy for outdoor events and scale model contest, events.” Fuselage models. Picture No. 13 shows a there will be a gasoline model event open very efficient contest model built by him. to anyone in New England, with no re New’ York City striction as to age. Another event of interest is the official CLUB NEWS “The Meet will be sponsored by the opening of the World’s Fair Hobby Olym United Aircraft Corporation, the Con Hanford, Connecticut pics, sponsored by the Hobby Guild of necticut Model Airplane Association and America. It started Monday, March 15th, Mr. C. Donald McKelvie of the Y.M.- the Hartford Y.M.C.A. 1937, and will conclude on June 30th, 1938. C.A. of Hartford, Conn., writes us con “Gas model enthusiasts may get the For full information write to the Hobby Guild of America, Knickerbocker Hotel, West 45th Street, New' York City. NEW UNITS OHLSSON MOTOR Allentown, Pennsylvania IS YOUR We are pleased to announce that a new unit of the Air Ways Club has been ASSURANCE formed. It is called the Flying Keystone OF DEPENDABLE Model Airplane Club. On December 19th the club held its third monthly indoor con G A S MODEL test, which resulted in some fairly good PERFORMANCE times, considering that the ceiling wras only twenty-eight feet high. The winners of the events were as follows. ★ ★ ★ George Micott won the R.O.G. Class A Event with a flight of three min., eighteen seconds. The Stick Event was won by OHLSSON Russell Fahringcr whose tractor flew five STREAMLINED min., forty-two seconds. The Cabin Event PNEUMATIC was won by George Micott with a time of three min., seven seconds. AIR W H EELS New improvements and proven fras power features have Designed to me*t modern gas Jacksonville, Florida made Ohlaeon Motor» the standard of model builders model requirements.· Pneumatic, vulreless. can be Inflated with The Jacksonville Model Club of 2048 everywhere. The new one-piece all-steel cylinder is ma ordinary tire chined from a solid bar of alloy steel. The piston is sheer- pump. Brass lH!ar- Roselle Street, Jacksonville, Florida, will Kround to a tolerance of .0001 inch, by an exclusive pat lncs and Dural ented process. Platinum timer points, radial mounting, cover plates. start their yearly activities by holding a fully counterbalanced crankshaft, full floating tubular diameter contest on Saturday, April 11th. Another wrist pin, complete interchangeability of parts and many other exclusive Ohleeon features make this as fine a motor $ 2 - 7 5 contest will be held about the middle of as you can buy at any price. pr. June, and still another about August 15th. H.P. %—Bore % inch—Stroke 15/16 inch—Speed 500- The fall meeting is usually held during 7500 r.p.m. with prop. Engine weight 7 oz. Positive guar diameter antee against defective materials and workmanship. October. Those who are interested in at $3 -0 0 tending the contests should write Mr. Wil Sold only as a completely assembled factory O 50 tested unit Price ------I O pr. liam L. Timpone, club advisor, at the above Dealers write for Send money order or send 8c stamp for full particulars. details. address. Mr. Timpone has guided the club in its activities during the past two 630 NORTH ALVARADO STREET years. Akron, Ohio OHLSSON) LOS ANGELES, CALIFORNIA m in iR T u res S Mr. Pershing Kaufman of 792 Elma Street, Akron, Ohio, president of the Ak ron Model Aero Club, writes us that his S3" WING SPAN club wishes to become a unit of the Air TAYLOR Ways Club. Wc are indeed pleased to have this active society join our organiza tion. Anyone who wishes to correspond CUB with this club should write the secretary, James Weber at 653 North Howard Street, Akron. Mr. Kaufman sends us a picture of a model built by one of the club’s members which will be published in a later issue. re s t paid Boston, Massachusetts One of the most interesting and best attended meetings ever held by the Jordan COMPLETE KIT $1.00 Marsh-Boston Traveler Junior Aviation BUILD THIS GIANT FLYING WONDER--IT’S EASY! League was in January. Mr. Gunnar Mun- This kit contains all materials—Cements, finished turned balloon balsa nick, a pioneer in the field of model aero wheels, drilled noseblock, full size plan, four sheets colored tissue. nautics, conducted the gathering and pre Send three cent stamp for latest catalogue No. 6. sented an informal talk on the history of THE PEERLESS MODEL AIRPLANE COMPANY model airplane building and the progress 3088 Q West 106th St. Cleveland, O., U. S. A. the sport has made during the past twenty years. MAY MODEL AIRPLANE NEWS '— H 1937 45 ★ FAMOUS LINDBERC LINE ★ ALL MODELS DESIGNED BY PAUL W. LINDBERG Each kit comas complete· with full sire plan, printed out ribs and curved parts, sheet aluminum for cowling, special metal fittings, veneer fire wall all Balsa parts cut to correct size. These kit* are complete down to special bolts, screws, and many parts too numerous to mention. NOTE: wings carry shear pins so as to prevent damage to model in ease of bad landings. All models balanced by adjustable battery rack and tail surfaces. Lind berg Gas Models carry more advanced features than any Gas Models on the market. All models have been thoroughly tested before being put into production. Baby Cyclone or any light Model Engine can be installed. REARWIN SPEEDSTER I BERLINER JOYCE U. S. ARMY PURSUIT I Span 6 ft. SILVER FLYER Length 3'/2 ft. Span Over 6 ft. Length 3'/j ft. I Span 5 ft. Length 4 ft. I This trim up-to-date Model carries all the latest devel- Complete with latest type Μ & M Air wheel, colored I Λ Beautiful flyer, all the latest Army colors included. I opments. Complete kit with wheels, etc., colored all dopes and all. Complete kit $7.00. Add 50c to cover I M-M air wheels, insignias and all. Complete kit $6.75. I silver and red. Complete kit $5.00. Add 35c to cover cost of packing fc mailing. I Add 50c to cover cost of packing & mailing. I cost of packing & mailing. (West of M ississippi, add 10% , Canada 10% , Foreign 15% .) Dealers. Jobbers, Clubs, W rite for complete line 10c to $7.00 ANY ONE KIT SUPPLIED with Baby Cyclone Motor, $17.25. extra, Or Miqhty in n g l a n d n o r t h e r n m o d e l a ir c r a f t c o Midget Motor Kite, $0.85 LINDBERG MODEL & SUPPLY CO., Dept. O | E : . e x tr a . 5324-28 N. Kedzie Ave., Chicago. III.. U. S. A. 9 37a Fountain St., Manchester, 2. Readers may he interested to know that “Anyone who would like to receive our group of the I.G.M.A.A. and Unit No. 3, the 8th Annual New England Championship official organ, the ‘Aeronuts Bulletin’, may deserve a great big hand and a lot of Model Plane Meet is scheduled for the send such a request to the editor, Tom congratulations on a year’s existence latter part of May, probably on the 22nd Cunningham, 1039 Hollywood Avenue, crammed full of activities, contest, and and the 23rd. Chicago, Illinois. For the benefit of any general building.” A cordial invitation is extended to all Chicago model builders who are interested, We are sure Mr. Allen is right in sug New England model builders to compete in the ‘Aeronuts’ meet at Gage Park, 2411 gesting congratulations for Mr. James or witness die 8th New England Champion West 55th Street, every Saturday at 2:30 Faucett. He can consider himself con ships. More detailed information may be P.M. gratulated. obtained irom Albert Lewis, Juior Aviation Mr. H. W. Badstubner, president of League, Jordan Marsh Company, Boston, The Gas Model Airplane Association of Mass. "Gas Lines” Southern California, of 5115 West 106th Street, Inglewood. Calif., writes that this (Continued from page 12) Chicago, Illinois organization has elected Mr. Grant as an We hear from Edmund B. Swort of terest. Mr. Bob Allen of 7041 Frankstown honorary member. This Association is 102 West 72nd Street, Chicago, Illinois, Avenue, who is director of western Penn also unit No. 23 of the I.G.M.A.A. Mr. who writes us as follows: sylvania and who is responsible for the Badstubner gives several interesting point “I have been appointed to send news of organization of our largest unit, No. 3. ers in respect to how their organization is the ‘Chicago Aeronuts’ model activities so sends us a few notes oil his activities. handled. This may be valuable to other I shall do my best. We have set up a He says: units. He says: club contest program to see what can be “Recently I was invited to be the “Our group is strictly amateur, in that done in the way of bringing more records guest of honor at the First Annual Ban our requirement for active membership is to this city. So far our efforts have been quet oi the Tarentum Y.M.C.A. Gas Model that the applicant either has, or is con meeting with success. On January 2nd Club, which is affiliated as a group of Unit structing, a gas model airplane and, that he four official indoor N.A.A. records were 3, I.G.M.A.A., under the able directorship or she is not engaged in the sale or manu established; they were: of Mr. James Faucett. This is one of the facture of model airplane supplies. Only N.A.A. Un most active groups under my jurisdiction, active members may hold elective offices. Event Official official and is really doing things with the help and Members who are engaged in the sale or Junior Autogiro—· cooperation of the Y.M.C.A. in that town. manufacture of supplies are classed as re Milton HugueJet...... 1 :20 2:52 The “Y” has set aside two large rooms as serve members and may hold appointed Senior Autogiro— work rooms and supplied them with such but not elected offices. This has been a Richard Obarski...... 2:26 2:47 power tools as they need, including band very effective method for keeping harmony Open—Carl Goldberg...... :54 2:18 saws, jig-saws, and lathes. If you figure among our supply houses. We now have Ornithopter Senior— that out of twenty members, there are over ninety members in our organization Edmund Swort...... :33 twenty-one ships, flyable, that is not so and are justly proud to be known as one of bad in a town whose population is under the largest units of the I.G.M.A.A.” “A contest for ornithopters was held on 3000. Those twenty members consist of Raymond Santee of the 53rd Squadron, January 30th at Hamilton Park, die ceil sixteen boys and four girls and there are, Randolph Field, Texas, and president of ing of which is under thirty feet. The re as interested spectators and possibly future unit No. 21, sends us picture No. 13. This sults were: members, nine adults who attend every is a picture of his latest model, Miss Amer “Dennis Turner was first with a time of meeting and supply a little cash here and ica, powered with a Cyclone engine. Mr. 2 min., 21.6 sec., which is a senior record. there for needed material. Included in these Santee is on the right and the other young Edward Swort was second with 2 min., is Mr. Shook, the Executive Secretary of man in the picture is Jimmy Martin, San 4.6 sec. Milton Huguclet was third and the Tarentum Y.M.C.A. The banquet was tee’s helper. Mr. Santee says: made a junior record with 1 min., 36.8 sec. a grand success from cocktails down to “I have never put over twelve c.c. of Carl Goldberg was fourth with 1 min., pie, and prepared by the group director, gas in the tank. The average flight I 28 sec., which is an open record. John Mr. James Faucett, in I should say a have obtained is eight minutes, the longest Kubilis, with a time of 1 min., 17 sec., workmanlike manner. I think that the flight being twenty minutes. The best al was fifth. Tarentum Y and the members of this titude attained has been 4000 feet.” MAY 46 1937 y*—* MODEL AIRPLANE NEWS Rutledge at once so that he may become HERE IT IS!—THE “ BRAT” more intimately associated with the ac Anno-.incIniT th« 8«n*ationat tivities of Kansas gas modelers. He will s m a l l m o to r —t h e “ B R A T " — be pleased to supply information concern bore 17/32", stroke A'»". Runs H min. on V« ox. a t ing the Association. gas. W eight 3 Vi* o z . ( f l y i n g weight, with batteries, call The I.G.M.A.A. congratulates Mr. Rut and condenser—8 oz. com· lete.) Height 3 In. 1/10 ledge on his outstanding work and tireless S• P.—3000 to 7300 « Ρ Μ with 0 " p r o p e lle r . efforts. T h e "Brat” i s t h e ------of a year’s experimentation Great activities are being carried on by by expert engineers, and is unit No. 37, of which Fred Just of 215 to Λ f o o t North Dodge Avenue, is secretary. Re T u > · · n ft a t ' * Span, weighing t lb. to t ».<* in* »«»' lh Tt been thoroughly tested In many models be cently they gave a gas model airplane fore being reltsssed. and Is perfect In detail. The “BRAT·· saves you tlie cost and work on ynnr gag model, demonstration in the Hotel El Dorado, for and due to the small size of the model makes transporting much easier. Order your “BRAT'· now: Orders will be THE FAMOUS DENNY JR. the benefit of the Metro Club. The dem flilod In the order which wc receive them! G ^ r n The “BRAT” complete· with coll, con- 3 ^ £T<3U — 1 H R . 47 M IN . G A S M O D E L onstration was conducted by Lewis Shore, denser, propeller and spinner completely .Μ. Π ρ α,· teg tod and run In at the factory Is only ...... Span— 6 ft. Weioht—complete with motor—3 lb*. Donald Sump and Mr. Rutledge. The WE STOCK ALL THE MOTORS LISTED Here is a model that will elve you everyth·no you want in a gas model!— Looks! Strength! Light Metro Club voted to sponsor a model air BELOW FOR IMMEDIATE DELIVERY! wriQht! Real performance! The Kit for this famous plane dub at the Junior High School and 1937 QWINAERO—$17.SO— Inverted—*18.25 model I* complete In every detail—real air-wheel*, 1*37 MIGHTY MIDGET—516.SO—inverted—*17.25 1937 OHLSSON—518.50—1937 BROWN JR.—*21.50 finished aluminum cowl, cut-out rib*. V» Pt. ce hopes to build interest up to the point 1937 8A8Y CYCLONE—*17.25 ment, I qt. done, silk covering, ns well as plenty of wood, metal*, ete.. to build the C 4 4^ where a large number of indoor and out FREE! with Every Assembled Motor a FREE best looking, finest performing 938* | | 1 00 PROPELLER model you ever saw! Complete kit |||p < v « t· door contests may be held later. MOTOR KITS FOR IMMEDIATE DELIVERY: with full size plans and Instructions.__ ■ W patd 1937 GWIN AERO KIT—SI 1.35—Inverted—511.60 It certainly looks as if our Kansas group 1937 MIOHTY MIDGET KIT—59.85—Inverted—510.10 Plans, wing ribs and spar* only...... 43.76 was “putting it over.” FREE1— HANDY MODEL-MAKERS KNIFE WITH EV- ERY MOTOR KIT1 . , HERE IS A REAL SPECIAL!—DENNYPLANE JR. I Send 3c stamp for catalogue of gas model kite, motor*, KIT and CWINAERO or MIGHTY MIDOETl Motor—all for S2S.OO! You save 52.SO! New Units CALIFORNIA BUYERS'—PLEASE ADD SALES TAX, JA Y ’S MODEL SHOP 7763 Melrose Ave. Dept. M-9 Hollywood, Calif. A new unit has been formed at the Yakima, Washington, Y.M.C.A,, which is directed and sponsored by Mr. Richard D. Megorden. Picture No. 14 shows a group Santee also makes a very pertinent re of club members and some of the gas mod SPECIAL OFFER!!! els they are building. This picture was On order* of $1.00 or more of mark. He says: our Balsa Stock. Your choice of taken in their first workshop before they No 1 or No. 2. “Many persons insist gas models should outgrew it. At that time their membership pftT i-—.50 Tso worth of any! [5 be built to the scale of a real ship, since I site* BALSBALSA stock FREEj [f by using a gas engine they are more life was only seventeen. Mr. Megorden writes: For 36" Slock, docldv 18" f>rkw. Add 10c pnrkins and Mim.r.rK. like. I believe more composite models “We now have a membership of 27. all 15* Balsa Strip* lal i / u i x i / n 2x2. .01*. .030. 026. .034. of whom are busily working on their gas 1/16x1/» 2x0. . 4 5 6 feel fo r. .0 5 should be built because it is only by intro 1/16x1/* 14 to r . 0 8 C e m e n t Thrust Bearing* models, getting ready for the big gas meet 3/82x8/32 1J lor .05 1 (>, . 0 8 L»r*H or S to .ll . .0 1 ducing new designs that gas model build l / S x l / S . . 11 for . 0 5 2 Ox .15 Washers planned for this coming spring. (The exact 1/8x1/*· ■. 7 lor .05 D o p e W Br»iM d o . .0 1 ing can further aviation.” 3/10x3/10. i for .05 1 Ο». . 0 8 H" Copper dot- .01 1/4x1/*... 3 for .05 date of this meet has not been set). l '4x3/*. 2 for .0 5 2 0*..... Francis R. Stevens of 4911 44th Street l/4 x l / 2 . 2 to r .0 5 T h in n e r “I find that elderly men and exceedingly l/2 x l / 3 . 2.04.05 ΙΟ.· ; ; NW, Washington, D.C., secretary of unit 18' . lot r- T> : interested in what we arc doing. As a i ·.·.·..· T is s u e :i! No. 31, notifies us of the enrollment of i/tex2 ...... - matter of fact some of our members have 3/82x3 . . . 3 for '.08 Co*owi V “ ,a r eighteen new members. He says in his 1/ 8x2 complained that their dads had become so 3 /16*2 . 1 for ΐδ ? 3/32 flat 19'. for .05 letter: 1/4x2 . . . 3 for . 1 4 1 /6 * »' 2»'. for . 0 5 completely taken by their motors when 1/ 2x2 ___ 2 for .11 3/lua.clS·. f..r .07 ORDERING “Your publication of our unit organiza INST. B i n , O X 1 /1 6 " (K| . u t n r , v » tion in Model Airplane News has caused first run that friction developed over who 1/2x3/4x6 Sfoi:08 1/W.1/4U5... .Ol NO C .O .D . S /8 x lx 7 .. 3 for .07 Bushings should run them on later occasions. Our 3 /4 x l* 8 . 2 for .0 5 * fat. .01 a landslide in new applications, which we H x lH x lO on ordrrr Iw Hun oldest member is 40 years, and our young X x I H x l i 2 for *12 Wheel» iPer P S2.00 xdd ll>% lo r appreciate very’ much. We now have near Ix l 4 x 1 2 parkin* *nd im«r- est is 12 years. IxlHxle . lH for '-sl'Flras· t*r. C Irrr 82.00 ly every gas modeler in Washington in our .02 .03 .OS »iml pr«pxld. On 18'Balsa Plank* .05 .04 .07 iorcicn order, add l x l ...... 09 if* .04 .06 .09 15% . club. The new members are: “The officers of the club are as follows— 1x2 ...... 15 l><" .07 .11 .15 Pres...... Richard D. Megorden Dealers, Clubs, Send for special price list “Donald Scott, John Beebe, Richard Stolus. John C. Lawler, Donald Ludwig, Vice Pres...... Roy Allison TRIANGLE MODEL SUPPLY CO. Sec.-T reas...... Gordon Cerswcll 32-57 38th Street L. I. C., N. Y. Kenneth Ludwig, Ernest Violett. William Walsh, Warren Barwell, Paul R. Yowell, Sergeant of Arms...... Joe Wherry” Bob Wielele, Henry Putman, Dick Knight. Page King, William Barger, Johnny Jones, Picture No. 15 shows the first gas model Carter Squire and Robert Platt.” constructed by the Linden Model Airplane Club, with headquarters in the Old City DEALERS Mr. R. N. Ferrario of 508 South Main Hall, Linden, New Jersey. The model Avenue, Scranton, Pa., treasurer of the HANDLE THE “HAWK” LINE was built from a Flying Quaker kit and FOR SUBSTANTIAL PROFITS Anthracite Gas Model Club, unit No. 22, powered with a Baby Cyclone motor. It writes as follows: We are the oldest and largest took about three weeks to construct and manufacturer of %-inch scale Solid “Our members are building a Flying flew' successfully on the second flight Wood Kits with all parts cut to out Quaker gas model which will be powered Though it was lost on one of its flights, line shape, Scale Die Cast Propel with a Brown Junior engine. At this writ lers, Machine Guns, etc., now offered fortunately it was found by a student pilot ing the model is in its final stages of from Westfield Airport, who returned the to dealers. Over 50 different Kits completion and will be ready for flying very priced from 30c to $2.00. model to the club. We wish to extend the “HAWK” Kits are sold at leading shortly. John Galdiere is also building his thanks of the Association to this pilot tor Hobby and department stores every* own gas model, which is a Red Zephyr to his extreme courtesy and adherence to the where. Get your supply and cash in be powered with a Brown Junior engine,” recognized code of ethics of aviation. on the attractive discount offered. The I.G.M.A.A. takes the greatest pleas Roy Mcssingcr, secretary, tells us that We also have a complete line of ure in announcing that Mr. Leo Rutledge the club is experimenting with a Kodak y*-inch scale Railroad car kits and of 243 South Rutan, Wichita, Kansas, the timer. The plane to date has made about supplies at prices that can’t be du advisor and sponsor of unit No. 37, has plicated. twenty-five flights. The model in the pic Write now, on Business Letter been appointed State Director of the state ture is show'll with Frank Yuhasz, club of Kansas. Mr. Rutledge has been a head for our discount. treasurer, who is now enrolled at the Casey pioneer in model activities in this state and Jones School of Aviation. There are HAWK MODEL AEROPLANE CO. it has been through his efforts that inter twenty-three active senior members in the 4946 IRVING PARK BLVD. DEPT. Y, CHICAGO, ILL. est in gas models was started. club. Three gas jobs have been construct All Kansas units should report to Mr. ed to date. MAY MODEL AIRPLANE NEWS •— ^ 1937 47 One of the I.G.M.A.A. latest units is the Wiley Post Gas Model Club of 1540 Northwest 33rcl Street, Oklahoma City, Okla. Activities in this state sprang up Build these Models-WinCash! only recently among individual members. Win a Scholarship or $1500 Cash- However these builders got together and Big Building Contest: 100 Prizes in all! formed the above mentioned club. Mem $2850. Get into this Model Building Contest I Here is a real opportunity bers were busy during the winter flying for you to win a valuable award .... go to any College or Uni models at the Wiley Post Airport, which versity you desire—study Aviation in any school—or earn actual Mr. Burke, the airport manager, so gen in Prizes! cash for any purpose you wish. There are 100 Prizes for those who erously let them use. The I.G.M.A.A. ap The Rules Are Simple build the best models. Read the list of awards; 1st and 2nd awards are Scholarships in Aeronautics at the University or College of preciates his cooperation, as well as the 1. Contest In open to everyone. help rendered Association members by oth 2. Official Entry Blank must he winner’s choice, or the cash, which is, 1st award, $1300: 2nd award, filled out and mailed. $750; and 28 other cash prizes; 3rd, S50; 4th, 5th, 6th, $20 each: er airport managers throughout the coun 3. Contestants may Incorporate as much detail as desired- 7th, 8th, 9th, 10th. $10 each and 11th to 30th. $5 each—also 70 try. 4. Preliminary judging will he from photographs subm itted by con Martin Bomber Model Kits, value $3.50 each, a total of 100 prizes. We are indebted for this information to testants. Such photographs will not be returned. Name and ad- In case of ties, duplicate awards will be made. die 6-s of contestants m ust bo shown A. C. Nissen, who also tells us of his own on buck of photographs. The judges -- , . Send this Coupon will select 10l> models from these work. He says: photographs, which in their opinion Build These IVIO delS for Your Official attain highest rating. The luo “I have built three gas models, the selected will ho nsked to send their Contest Kit! models to Schenectady, N. Y., for and E a rn a P riz e !! latest one I hope to enter in the ‘Na final judging. Models must not bo sent until requested. You have two models to choose from, a S3 tionals'.” Nissen’s second gas model is 5. Contest opened Nov. 1. 103η. Boeing P26A or a Curtiss Goshawk (both and closes August 1. 1Θ37. -2 shown in picture No. 16, just after its β. Prizes will he awarded on a illustrated below), or you may buy both basts of general accuracy, detail and take-off. It appears that an issue of “Gas quality of workmanship. and enter both. Each kit $2.00 and 10c 7. Models which are awarded 1 st is Lines” cannot go by without at least one to 6th prizes inclusive are to be for mailing. (23c West of Miss. River.) and become the property Of Mo- A Tru-Cut Knife is packed in each Contest flight picture appearing in it. This ma h-Awk Model Planes & Supplies. All other models will be returned to Kit FREE. Order yours now. Complete chine has a seven loot span and weighs contestants. 8. Judges to be selected by tbc rules, entry blank, and full information in Mohawk Model Planes & Supplies. 3o only V/> pounds. Nissen says for some Decision of the Judges as to all each K it. matters is to be final. reason or other it is almost impossible for Only Kit* purchased from us carry the a. & Official Contest Sticker, and contain the 3 it to turn away from the wind and it is Entry Blanks for this Contest. (Λ exceptionally stable. ΦSft We take pleasure in announcing that 8 “ [if another unit of the I.G.M.A.A. has been established in Australia. It is the Launces 0.8 :2 ton Association of Petrol Model Aircraft Constructors of 243 St. John Street. Launceston, Tasmania, Australia (Unit No. 47). Mr. Fred Steven is the director. The club was formed only a short while CURTISS GOSHAWK ago, the first meeting being held on No Wingspan 23a*". Lt. le-Va", Wfc. 3% i=u vember 21, 1936. Exact Scale. We hear from Kennard C. Trebil of 619 North Third Street, Glendale, Arizona. club meets in the City Recreation Building He is forming an I.G.M.A.A. unit there and is under the direct guidance of Mr. with six other builders who are very ac N. L. Maillison, Superintendent of Rec tive. Up to the present time Mr. Trebil reation Activities for the City. has a total of sixty-six flights with one of The I.G.M.A.A. Contest Rules his planes, over a period of five months. He is most anxious that model builders The I.G.M.A.A. Eastern States Con from other units and states communicate test, to be held on May 22nd at Hadley with him so that he may exchange ideas. Airport, New Jersey, will be run under the following rules: Other gas model clubs have joined the The rules which follow are those drawn I.G.M.A.A. as units. They are: up by the International Gas Model Air GUARANTEED SAVINGS ON EVERY ITEM AT The Nativity Gas Model Airplane Club plane Association. ALL points not cov B ALTIMORE F IREWORKS C. Q-. I N C . of 801 South Webster Avenue, Scranton, ered by these rules are to be translated 6900 EASTERN AVE BALTIMORE. MARYLAND Pa. J. Francis Howarth is the president. according to National Aeronautic Asso The North Shore Gas Model Club, of ciation rules and specifications. Have You RUINED Your Model 135 Essex Street, Lynn, Mass. Charles (A). Duration Event (Limited Gas) With Improper Dope and Paint? Hyde is president and Harold Thompson 1. All models shall be limited to a is secretary. maximum weight of 7 pounds. The Bay Shore High School have a 2. All models shall be of the fuselage Try Model-Glos unit called the Sunrise Gas Model Squad classification as established by the Na FINISHES YOUR MODEL LIGHT— ron, with Mr. Alfred T. Ploeser as di tional Aeronautic Association and shall BEAUTIFUL — GLOSSY — DURABLE rector. Donald R. Towne is president and flows freely, leaving no brush marks conform to the proportions established by Pts. '/a Pts. 2 oz. Jack Wills is secretaryAreasurer. All N.A.A. rules. The maximum fuselage MODEL-GLOS Clear Dope...... 90 .50 .25 correspondence should be addressed to Mr. MODEL-GLOS Banana Liquid.. .90 .50 .25 cross section shall not be less th a n -j~ MODEL-GLOS Cement...... 90 .50 .25 Wills at 85 North Penataquit Avenue, Bay MODEL-GLOS Dope Thinner...... 65 .40 .15 Shore, New York. MODEL-GLOS Anti-Blush Re where (L) is the overall length of the ducer ______.95 .60 .25 The Toronto Gas Model Club of 35 airplane. MODEL-GLOS Balsa Primer Sur- Kingsway Crescent, Toronto 3, Ontario, facer ...... 95 . 60 .25 3. The amount of fuel that may be used MODEL-GLOS Pigmented Dope Canada, has been particularly active and for an official flight shall not be more than All Colors except reds and would like to increase their membership. maroons ______.... 1.00 .65 .25 (liquid measure) 1/16 oz. per pound of Reds and maroons------1.15 .75 .25 All those interested should write to the weight of the airplane. POSTPAID secretary, Tom Pearce, at the above ad (B). Limited Engine Run (Duration Specifications for Model Finishing fur dress. Event) nished FREE with each order. In Jacksonville, Florida, there is the 4. In such events the gas model shall No C. O. D,s. Prop Twisters Club of 547 West 28th be equipped with a timer or other device MODEL-GLOS Finishing Products Co. Street, of which Frank Fitzgerald is presi which will limit the engine run to 45 sec P. O. Box 556 Woodbury, N. J. dent and Owens Perdue is secretary. This onds or less. MAY 48 1937 y ^ MODEL AIRPLANE NEWS Take advantage of this spe cial FREE offer now! Ex- S P R AY 1 DOZEN perienco what a real pleas ure it is te do business with for Your or SHEETS a model airplane supply house that keeps promises! MODELS JAP. TISSUE Every order Is shipped same COMET day received! All materials are of highest quality! Provo this to yourself! Learn why so many builders, dealers presents and elubs deal with 8KYWAY1 Dealers! Send for prioes. 18 BALSA SHEETS 18” BALSA STRIPS Wooden Wheels Machine Prop· 1 .'32x2 3 for Sc 1 1 6 x 1 / 1 6 ...... 2 0 f o r S c V a” . 2 p a i r ...,3 c 1 18x2 2 for Sc 1 1 6 x i ...... 1 6 f o r S c kV . pair....2c 2 GREAT NEW FLIERS 3/32x2 3 for Sc i / Bx i/a ...... 10 for 5c 1", pair....4c Alum. Tubing > /.x 2 ...... 2 f o r Sc 1 1 6 x 3 . 1 6 ...... I S f o r 5 c 13-e". pair. ...4c u p to 1 6 ”.) 1 / 1 6 ” , 3 1 6 ·, 3/18x2 3 for Sc 13/4“. pair...,7c W' ...... lO c f I/I 6XI/4 ...... » 4 f o r S c Rubber Motors V-(X2 1 f o r S c 3 3 2 x 3 - 3 2 ...... 1 2 f o r 5 c Celluloid W heel· 1 / 1 6 s q . 2 0 f t . 5 c I/*** ...... 1 ,or 7c Vaxi/4 ...... 7 for Sc Va Hat 20 ft. Sc For 3" fill cot», double Above l/4*»/4 ...... 3 'O'- V V . p a ir ...... 5 c p r i c e · . 1/ 4 XV2 ...... 2 f o r S c 1 ” . p a ir ...... 7 c IN S IG N IA S — SALSA PROP BLOCKS V a x v a ...... 2 f o r S c IVb”. pair...... 9e Fronch. American, Μ » χ ϊ'4 Κβ ...... A f o r S c l r / a · ', p a ir ...... 1 5 c English, German B A L SA P L A f KS 11/4” ..4 fo r 3 c 1/^x3,4 XS ...... S f o r Sc 18' Balsa Balloon NOSE PLUGS, V'hXI x R ...... 2 f o r S c l x l . 1 f o r ...... 9c 2 ” ...... 1C 1 x 2 . 1 f o r ...... I S c W h e e ls 1 sheet of 24, Sc large..lOc doz. 3 1 x 1 x 8 ...... 2 fo r S c Vi". 2 p a i r .— 3 c sm all....5c doz. ^ '4x 1 1 /4x 1 2 ...... 1 f o r 6 c 2 x 2 . 1 f o r ...... 2 2 c Dummy Radial 2 x 3 . 1 ,2 6 e VV'. pair....2c 1 x 1 1 / 2 x 1 2 ...... 1 f o r 8 c ,45c pair.—3 c E n g in e s M iscellaneous l x l l 'i-^xl j X l S ...... 1 fo r 9 c 2 x 8 . 1 pair...,5c 1 Vi” D -a m ...... 1 4 c Washers. 1/4”. For 36 length» double above price· and add lOc postage lvf : p a ir . 8 c 2 ” O ia m ...... 18c. ι/g d o z ...... lo Sheet Celluloid Clear Cement p a ir 1 4 c 3 ” O i« m ...... 2 3 c IS ” BAMBOO Sandpaper, pkg.Sc 1 1 6 x 1 4 . 6 f o r S c 2 x 6 ...... 2 c 1 o z ...... 1 0 c DOWELS. Vex 12 Shredded.. 40, Sc 6 x 8 ...... 4 c 1/2 P t ...... 2 5 c 1 0 c per doz. Japan*·»* Tiatuo 1 2 x 1 6 ...... 1 5 c 1 pt...... 45c p k g ...... S c All colors, dz. 18c Wood Veneer SPOT WELDED C le a r D o p e 20x30”. 1 for 9c PAUL-O-WINA H O LLO W Silver or Super 1 o z ...... lO c Brushes No. 6 Sc fin e T is s u e . S c 2 f o r ...... 1 7 c J A P P R O P S A L U M IN U M D o z ...... 50c M* p t ...... 2 5 c R e e d s S ” ...... 1 0 c WHEELS 2 0 - X 2 4 ” Colored Dope 1/3 2 . 1 16 (add 5c per 1 ” ...... p r . 6 c Thinner Best 1 o * ...... lO c ...... 3 f t . l c inch for props I V i " ...... p r . 1 1 c V i P t ...... 3 0 c V i ” ...... 3 f o r 2 c up to 10”.) l v / a ” ...... p r . 1 4 c Bushings, doz. 3c ORDERS 75c or under 15c postage. Postage prepaid on orders over 75c. West ol M.ss.ss.ppi add ^2?. «‘‘‘i 3· Canada add 15c extra on order» under 51.00. On orders over Sl.OO add 15«/0. CASH OR MONEY ORDER—NO STAMPS- Senior Dippei— Kit No. 5A-194 NO C. O. D.’s. ______383 Seventh Ave.. Dept. A. Wingspan 24r ...... Price 50c SKYWAY MODEL AIRCRAFT SUPPLY CO. Brooklyn. N. Y. 5. The engine run shall not exceed 45 cial in which the airplane does not take seconds. off the ground under its own power with 6. Any flight made by a model as a out pushing. The plane may be guided by contender in this event, the engine run of one attendant through contact with ONE which is more than 45 seconds, shall be WING TIP. Such action will not be classified as a “delayed” flight. termed “pushing”. 7. Every flight shall be timed by two 10. Flights may be termed official only timers. Timer Mo. 1 will stop his watch when recorded by a stopwatch by an official at the moment the engine “dies” and timer of the contest. No. 2 will stop his watch at the instant 11. All officials must be approved mem the plane touches the ground. bers in good standing of the I.G.M.A.A. 8. A flight shall be considered ended 12. AH assistants to contestants are re Senior Dart— Kit No. 5A-195 when the plane touches the ground or any quired to he members in good standing of Wingspan 24"...... Price 50c other obstruction. the I.G.M.A.A. Two swell new models designed to FLY! Ad (C). General Rules Governing ALL justable wings, auto-line-up construction, ce 13. A flight may not be termed official ment and banana oil, Balsa wheels, pitot tubes, Events when made by a contestant who is assisted pilots, many other details! 8 oy. what a value— 9. No flight shall be classified as ofli- and what a thrill to build and fly! in the preparation for flight by one who is not a member of the I.G.M.A.A. 14. A model is eligible for entry in the M O T O R S for the CLASSIFIED DIRECTORY contest only when it has been built by the contestant who flies it. Comet Gas M odel Advertise in thl* directory for quick prof 15. Models built by two or more con shown on opposite page itable results! Rate 10c per word. Min imum 20 words. REMITTANCES MUST testants may be entered “under a team” ACCOMPANY ALL ADS FOR THIS DI RECTORY. Advertisements for tho June contestant classification. . .·:«·· ·'·. - > V · issue must be in by April 10th. 16. Each contestant may be allowed a Jke MODEL AIRPLANES— KITS—SUPPLIES total of three official flights. CHICAGO’S 1am**l Model Airplane. and Boat Shop invitee Gwin Aero your inspretion. Complete Mack all popular lines of klu. 17. A flight is a start that lasts twenty A 5 yr. success rec Megow's. Comet, Cleveland. Aircraft. Hawk. h-Z Craft, ord! Bench tested. etc. iJax kit», motors a*d supplies of every kind Your seconds or more. Any flight less than this mat! orders solicited. 200 models on display. Tremen Operates at all dous slock of Stamps and Coin» for collectors. All-Nation time or a failure to fly promptly shall be flight positions. Fly Hobby Shop. 1-309 E. 55th St., Chicag o .______judged a delayed flight. Three successive i · ing weight com ALABAMA'S largest Model Airplane Shop. Finest Kits JL· plete without bat- and Supplies. Gas Kits. Motors and Supplies. Write for delayed flights shall be considered as dis y_'__ w tery— 12 oz. 500-7500 Catalog. Sanford Model Airplane Co.. 612 N. 20th Street. B* re R.P.M. with design Birmingham. Alabama.______placing one official flight. propeller. f 1 7 til FREE—Dealers' Clubs send for free 1937 reduced >vli..ie- 1 / 5th H . P . * l f *3W sale list and sample luisa. Mercury Model Airplane. 1592 M-5 Lincoln Place, B rooklyn. N Y.______CUT your own balsa strips and save money HsBa Stripper SAME MOTOR IN KIT FORM •25c postpaid. Lltvrtn Bros·. 471 East 98th St.. Bklvn. Build it yourself—and save...... 59.85 ATTENTION Model Builder». Our Tree price list will I. G. M. A. A. BROWN JR. please you. Write Waterbury Model Builders Supply. 131 Cherry St.. Waterbury Conn.______Holds all major 1934- I935 flight records. DEALERS: It will be worth while writing for our new price list on Model Airplane Cement. Bottles labeled. 12 Inch MEMBERS Motor weight 6 V2 oz. ready tvade R.O.G. 15c postpaid. Diehm's Model Shop, 1200-10,000 R.P.M. 41 Olmsted Street. East Hartford. Conn. _ .... 1,5th H.P. RUBBER Thread and Rubber bands. Manufactured by Hoditman Rubber Co.. 281 Fifth Avenue. New York City. $21.50 Write for samples and quotations on letterhead. Chicago GOLD %” Wide office: 113 South Wells Street.______FILLED CLEVELAND Models and Supplies. Immediate delivery f t" High G A S M O D E L on all popular models and supplies. Catalogues 10c. Pikes KIT Peak Model Supply, Pox 711. Colorado Springs. Colorado. Make a start on your COMET Gas Model with GAS Model Builder»—1.000 builders wanted to Introduce this low-cost kit. All plans, die-cut ribs, and our money savings plan. Best price» you've ever seen. Send Send for your pin todayl printed sheets...... $2.50 lor our proposition and free List. Dealers write Gas Our initial order of these pins is going fast. Model Supply, 439 Eaut 45th Street. Brooklyn. X, Y. Send for yours Now. They’re offered to you Send 3 cent stamp for Catalog Sheet DEALERS, Clubs. S c h o o ls : Free! Larger, lower whole at cost—because we want every Member to listing many accessories for COM ET Gas Model. sale list. Nationally advertised kite, supplies, delivered immediately by truck to New York dealers at usual whole 2 5 C *,ave onc\ Send in coin or stamps and sale discounts. Save time, money. Buy all kits from one we’ll mail yours immediately. You'll reliable source. Model Airplane U tility. 3307 New he proud to wear this pin I COMET MODEL AIRPLANE rtrci-bt Avenue. Brooklyn. New York ______EXPERTLY rarved hickory props. $1.50. pitches 6 ' to 1(P. MODEL AIRPLANE NEWS & SUPPLY CO. dinin. 12* to IS*. Gloss dope all «dor* 60c pt. Postpaid. 551 Fifth Ave. New York 2509 W . Cormalc Road, Chicago, III. Darling’s Model Shop. 1138 Kim Street, Utica. N. Y. . . . Still the BIGGEST NEWS in the CAS MODEL FIELD (SELLING LIKE WILDFIRE) Sfiec^UxUi&ni. MODEL—Curtiss Robin. W IN G SPA N — 6 ft. OVERALL LENGTH— *6 In. WEIGHT OF MODEL—2 £f|J lbs. less motor. PO W E R — a n y 1/5th or 1/6th H .P. motor. WHEELS— l'/x in. air w h ee ls. 4 %. alrw heels au_ tuotur > JL 5 0 with I I ■—■'I aln^hwis leas motor Postosc— east of the Mis sissippi. 30c; west of the Mississippi. 5 0c; none if oidcrcd (com Comet Dealer. T LAST—a Gas Model Kit bearing the COMET THESE FEATURES label! Introduced only after two solid years of grueling experiments, the Comet Gas Model reaches DETACHABLE WINGS and tail Compare the Contents— assembly. ADJUSTABLE RUDDER a new high point of FLYABILITY, COMPLETENESS, and elevator setting. ADJUST —with those of any other gas model kit. ABLE MOTOR SKID accommo EASE OF CONSTRUCTION and VALUE. Here is a The Comet Gas Model Kit is unmatched dates practically every motor ^model with many new and exclusive features that tor completeness and number of finished on market. Thrust line can be or semi-finished parts: varied- Real airplane typo SHOCK - ABSORBING LANDING will thrill every model builder, containing so many ALL RIBS accurately die-cut to shape, ready to glue in place :: LANDING GEAR gear and taif wheel—exclusive finished and semi-finished parts that you cut build with Comet. Prolongs lito of WIRES bent to exact shape :: IGNITION model by absorbing landing ing time almost in halfl So simple in design and con SWITCH :: BOOSTER CLIPS . MACHINE shocks. DESIGNED after two SCREWS and nuts, washers, etc. :: LAND yeors of experimentation. Mono- struction that anyone can build and fly this ship. ING GEAR, wing holding and tail wheel coque type, used by newest springs :: PRINTED ALUMINUM cowl shoot transports, chosen b e cau se ot No detail, however small, has been overlooked. and tire wall :: SPECIAL HOOKS and wire light weight, structural strongth, fittings all bent to shape CEMENT, and ease of construction. CUR Check carefully the features, specifications and con '/ pint—covering liquid. 1/j pint. Red and TISS ROBIN chosen because of yellow dope :: 3 SHEETS BAMBOO PAPER unusual inherent stability and tents listed on this page—and compare them with 2 LARGE PLANS giving all assembly excellent flyabllity. MOTOR any other gas model kit on the market! layouts full size, no tracing to complete SKID givos in event ot collision wing layout :: AIRWHECIS—1 pair 3 ’/ , In. —protecting motor. REMOVABLE Above all, test flights of amazing duration prove dia. inflated :: RUBBER-TIRED TAILWHEEL COWL end hatches for easy : STREAMLINED STRUTS, leading and trail accessibility to motor, battery that this model really FLIES — takes to the air ing edges of wing, completely finished :: and wing springs. LEADING EDGES lor tail, cowl blocks, etc., smoothly and quickly—without delicate adjustments! ready shooed :: MANY LARGE PRINTED BALSA SHEETS SPECIAL BASS BLOCKS listed below drilled, grooved, and slotted, ready to Insloll — landing gear travel block, front, center and rear motor skid COMET MODEL AIRPLANE & SUPPLY CO. supports, tailwheel fork and holder, motor 2509 W. Cermak Road, CHICAGO · Eastern Branch: 688 Broadway, NEW YORK skids, landing gear spreader block :: BIRCH PROPELLER blank, outlined, drilled COMET maintains distributors in many cities throuohcut the United States ard other parts of the world. Foreign distributor! include: F. P. Sweeten. Blackpool. England; R. W. Hill. Capetown. South Africa; E. J. Hyams and Son, and tapered, ready to carvo. Wellington. C.I.. New Zealand; V. H. Melkonyan, Ortakoy. Istanbul. Turkey; Sodedad Commercial, Salfa. Litda. Santiago, Chile; l_. M. Store Y Cia, Lima, Peru; Swedish-American Trading Co.. Stockholm. Sweden; Swift Model Aircraft Co., Brtsbano, Queensland, Australia. PACIFIC COAST BRANCH: 4649 Prospect Avc., Los Angeles, Calif. These Great C-D AUTHENTIC SCALE REARWIN SPEEDSTER GAS-POWERED MODEL Gas-Powered Modi.'l recommended to be colored all .silver with brilliant red striping and black lettering. Span 64· /. Complete plans and details $1.50, deductable from regular kit purchase price (less plans) if purchased within 10 days. Order dry kit GP-69, tt Λ O C Model Airplanes postfree in the U. S., only ...... 3 ) 4 . 0 3 ί (THE FIRST IN THE U. S.) MARK THE BEGINNING OF A NEW ERA IN GAS MODELS From coast to coast the talk of the gas model world! They're REAL fuel powered airplanes in miniature! Beautifully and authentically scaled (the first prac tical, authentic scale gas models yet developed any where) down to the last detail! Typical C-D thorough breds of model aeronautical .engmeering! Typical C- D supervatues! These ^ai^^v^ig^iiiauguration of greater sport, interest ami uirim ^r adventure in model The above photographs show the many new, fine and authentic appearance features of C-D gas power models. Disregarding all previous gas model practice Cleveland model engineers again building and flying. And· both designs S tea d y rank tops pioneer in (to them) a brand new field. in popularity the country over! Use Any 3/4" to 7/8" Motor Both models are suitable to be powered with any mo tors of approximately %" to % " bore, which includes any of the Cleveland Tom Thumb series motoKsagBaby Cyclone, Brown Jr., Mighty Midget. Gwini HUicjgfchers similar. Of course the performance of each mewl will vary with the engines employed; for with the TTirious size's (bore and stroke) the power will cnarfge and con sequently affect the performance of each model’s flight. Of course, the best performance may be expected with motors of the largest size. In accordance w ith’our adopted gas model policy, these dry kits are jt^&gKithoqt the power unit, as is the standard pract4p£T*3mtl we have also eliminated the supplying of wheels (and wheel shoes where designs require) enable the model builder to select whatever wheels suit his fancy; and because many do not like wheel shoes on gas models, these may be eliminated entirely. These are eliminated but may be purchased STINSON RELIANT GAS-POWERED MODEL separately if desired. For instance, for these models We suggest coloring to he all silver with blue trimming, black lettering. Span 82". Complete plans and details $2.25, deductable from regular kit purchase price (less plans) we have developed 3Ms" balsa wheels with bronze if purchased within 10 days. Order dry kit GP-66, postfree in U.S., only bearings at only (55c per pair. Wheel shoes to suit ! $8.50 either model also available. Per set, with four routed out cavities, drilled to fit up model kit” contains. ing and flying. Be first in your community. to 3 ^ " wheels only 95c. Of course M & The parts the kits contain are of course Once you start on one of these you’ll never M or any other type wheels may also be all the necessary strips and sheets, balsa be satisfied with ordinary gas models again. employed (3Vi" size, $1.50; 3 " size, wood, pine or bass and aircraft specifica Don’t wait—get your kit today! $3.50). Larger wheels may also be em tion plywood, etc., and the necessary curved ployed if wheel shoes are not used. Thus parts printed out on finest quality balsa, all Before Ordering see your dealer, to see these dry kits, as ALL C-D kits are now necessary solid blocks required, all the nec if he has the kits you want. If he hasn’t produced, mean that there are no liquids essary tough “bamboo” tissue covering, C-D’s, don’t accept a substitute—order di (cements or dopes) supplied, but if you do thick celluloid for windshields and cabin rect from us. Enclose check or money or not have any liquids on hand when pur windows, heavy music wire (not weak der—cash at own risk. No CODs. Can chasing either of the models, we recom spring wire usually supplied), all the nec ada, Mexico, British Isles customers—add mend buying at least V4 pint of the balsa essary aluminum sheets and tubes, screws, 10%; all other countries, 20%. wood cement (55c·, plus 15c packing brads, small diameter special wire, etc., Send for 64-Page Catalog— 2nd edition charge) to start. Thus you have your own etc. A truly worth-while quantity of ma —brimful of model airplanes, engines, choice of any colors in the dopes you re terials for the price. Of course both models ships, railroads, everything model-builders quire and especially on quantity you may do contain exceptionally large and thor are interested in. The largest, most com buy as little or as much as you like. oughly engineered, full size, well detailed, plete catalog ever offered anywhere—you C-D drawings, approximately 20 square can’t be up to date without it. Rush 10c Here’s What These Kits Contain feet or more each, authentic in true C-D at once for your copy. Add an extra nickel Before we explain these all-important de fashion. and the model making Supplement will tails, please understand that both models The Stinson, however, includes a well also be mailed to you when it’s ready, really look beautiful even before the cov turned cowl front, the. balance of the cowl soon. (Also sec our big ad on the two cen ering is applied. The wonderful appear being easy to make the same as are all ter pages, this issue.) ance of the really strong built-up ribs, (all C-D’s and on the Rearwin, besides the very simply made in a very few hours) add solid nose, a shaped leading edge is sup much of this appearance due to the brand plied. new C-D Principle, shock absorbing land ing gear details, adjustable wing struts, Be First to Build these Great C-D’s! CLEVELAND removable wings, removable power unit., Tf you’re a gas model fan—don’t let an MODEL & SUPPLY CO., Inc. the movable control surfaces, etc,, neces other day go by without ordering one or sitating the inclusion of many more mate both of these keen models. You’ll experi Since 1919 ______rials and supplies than the average______“gas ence a revelation in delight—both in_ build- The American Ato del builders Paradise DEALERS; Write or wire today for the C-D dealership. Schools, Clubs! Send for Club Plan 1866N West 57th St. Cleveland, O., U.S.A.