Model Builder February 1976
Total Page:16
File Type:pdf, Size:1020Kb
FEBRUARY 1976 volume 6, number 50 QUALITY PLUS PERFORMANCE KITS AND ACCESSORY ITEMS FOR THE DISCERNING MODELER Two Top Performing Sport Power Ships From The Pages Of RCM Designed By Don Dewey & Lee Renaud PLUS SERIES KITS FOR LOW COST AND HIGH VALUE These kits include the same high quality precision machined parts a s\£ ^~ Z . SQUARE SOAR in our other kits. Very simple to build and easy to fly. Requires some minor cutting and pushrod hardware. Coming Soon Gere Sport: 36” Span 250 Sq. In. 16-20 oz. .15 Sport Scale Bipe 72” Span 500 Sq. In 22-25 oz P 5 THE MOST COMPLETE LINE OF R/C SAILPLANES & ACCESSORIES AVAILABLE M i l 'J 11 QUESTOR SUPER QUESTOR $39.95 il!JLi·L $34.95 The Hi Performance Compacts” 62” Span 409 Sq. In. 16-20 oz. 80” Span 500 Sq. In. 20-24 oz. LAUNCH PAIL OLYMPIC 99 HIGH STARTS “The Trainer With A Contest Record Complete with 100 foot length of surgical tubing, monofilament line 99” Span and all hardware. 790 Sq. In. Standard $34.95 40-44 oz. Heavy Duty $36.95 $49.95 Full Line Of Towhooks, Chutes, Canopies, etc. AQUILA Both Kits Include Optional Spoilers “ Proven Performance GRAND For The Competition Flier" ESPRIT 99.9” Span Std. S59.95 810 Sq. In. Glass $79.95 40-44 oz. 134” Span c T N For Additional Info Write 1100 Sq. In. AIRTR0NICS 64-70 oz. *.0. Box 626, Arcadia, Cal. 91106 Calif. Residents Add 6% Sales Tax or Call (213) 445-4600 Dealer & Distributor Inquiries Welcome Flight from theAtlantic Ocean to the Pacific by the Sr. Falcon “LIBERTY BELL” It was the toughest test ever devised for man, woman and R/C model airplane. Bob and Doris Rich wanted to fly a model from the Atlantic Ocean to the Pacific, a distance of 3,000 miles. Three THOUSAND miles. They would never know where the ship might have to land, or where it would have to take off. In only 2 months, they sought and obtained support from many members of the model industry, and the cooperation of the Academy of Model Aeronautics, completed their detailed plans for the project, built 4 Sr. Falcons, flight-tested 2 of them, and had everything in readiness well ahead of the take-off they had scheduled for October 1,1975. Promptly at 10:02 AM that day, the beautiful "Liberty Bell" lifted 32 oz. of fuel off the memorable earth of Kitty Hawk, North Carolina, on the shores of the Atlantic, and headed towards Raleigh, capital of the state. Many adventures and 120 landings later, on October 29. she circled and soared and dipped over the sunny afternoon waters of the Pacific at Oceanside, Calif. The great project was now an historic and successful fact. The next day, Liberty Bell made her last flight, a ceremonial demonstration outside the Museum of Science and Industry in Los Angeles, where she was to be displayed for several weeks. Many dignitaries were there to offer greetings and congratulations to the Riches and their hard-working crew — Ed Sweeney of Reno, and Bob Sutalski of Chicago. Included among the dignitaries was one of America's authentic heroes, General Jimmy Doolittle. With the completion of this first transcontinental flight, R/C Modeling has gained added stature. To Bob and Doris, the people of Carl Goldberg Models offer our heartfelt congratulations, too. You've proved again that with hard work and magnificent planning, a big dream can come true. Carl Goldberg Bob and Doris Rich, Johnny Clemens, l Pres, of AM A in the middle, at Dallas with the LIBERTY BELL. 4734 WEST CHICAGO AVENUE · CHICAGO, ILLINOIS 60651 FEBRUARY 1976 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 1 1= WE ARE LAYING IT ON THE LINE We believe our new .61 R/C engine to be the world's best. There are many factors behind this statement. Greater useable power is one. Power where it counts, pulling power, brute torque, and constant speed produce effortless smooth flight performance. Another reason is excellent non-critical fuel draw. The mixture setting remains constant from flight beginning to end without resorting to complicated pumps or pressure systems. Cost per flight is important to many and the Kraft .61 is a long life engine performing willingly hour after hour. Also important and so often overlooked are fast service and ready parts availability. These factors are assured by our long term reputation in the R/C field. The outstanding performance of the new Kraft .61 has been amply demonstrated in recent contests. It was used by 5 out of the top 10 finalists in Class D Expert at the U.S. Nationals. In the highly competitive Las Vegas Tournament of Champions, it was selected by 11 out of 23 contestants (over twice as many as any other engine). At the large Tucson Winter Nationals, it took first and second place, and 5 out of the top 10. You can count on our engine because we take pride in it and in ensuring your satisfaction with our products. WRITE FOR FREE CATALOG Worlds Largest Manufacturer of Proportional R/C Equipment 4S0 WEST CALIFORNIA AVENUE, P.O. BOX 1268, VISTA, CALIFORNIA 92083 Retractable antennes* Spring loaded budd »«ring group pioneered al proportional control created the innovations esponsil erformanceJ .ccepted as standard Surprising herefore, that the new or advance in the state of the art. Some of n e u u are shouin here Triple use meter reads RFand transm'iTter bafterp voltage and also automatically convert’s to read receiver battery voltage. I t has an electronically expanded scale for in transmitter and receiver modules provide, instant change between the axis Standard RC assemblies are of the highest uencies |uality yet produced. This design enterm error and has excellent the most demand available at no state ix tra rovi roved selectivi acent channel interference. Cln advanced desi Cable interconnects battery test circuity in transmitter to receiver charge \acK, Entirely ive channel and three channel sets are available now, WRITE FOR FREE CATALOG- 450 WEST CALIFORNIA AVENUE RO. BOX 1268-VISTA,CALIFORNIA 92083 World's Largest Manufacturer of Proportional R/C Equipment MODELS 'Δ Δy t s E BUILDER presents the MASTER MODEL BUILDER Send all entries to: of the month MODEL BUILDER/PANA-VISE CONTEST 1105 Spurgeon St., Box 4336, CONTEST Santa Ana, California 92702 COLBERT INDUSTRIES, manufacturers of PANA-VISE, the unique hobby vise which turns and tilts to any position, in conjunction with MODEL BUILDER magazine, is sponsor ing a design competition for MODEL BUILDER readers. This monthly contest will be judged for originality and/or craftsmanship for all types of models (excluding plastic static scale). Entries will be judged purely on the basis of photo graphs and drawings supplied by the builder of the model. Emphasis in judging will be on originality, technical achievement, and craftsmanship, as found in the submitted material. A MODEL 301 PANA-VISE WILL BE AWARDED EACH MONTH TO THE WINNING ENTRY 3. If photos cannot offer sufficient information about the model, the construction drawings may also be submitted. Drawings should be dean, pencil draw ings with all pertinent dimensions indicated. A p rin t o f the drawing is acceptable. 4. A written description should be included with photos and drawings, explaining in fair detail any unusual features o f the design, and explaining any unique technical difficulties that the model may have achieved. 5. Please do not submit any designs that have been accepted for use in another publication. MOD EL BUILDER requests first option on publishing any submitted design. Payment fo r published designs w ill be at our regular rates. A ny prizes awarded do not represent an agreement to publish any design. 6. Entries w ill be judged by the modelers on Requirements for entries: MODEL BUILDER'S editorial and art staff, and all 1. Any type model may be entered (aircraft, cars, decisions o f the judges w ill be final. boats, etc.). Kits may be entered i f significant modi 7. Postage must be furnished if return of sub fications have been made to the stock kit. m itted entries is desired. 2. Do not send the actual model. Send only black 8. Deadline for entries in the first contest o f the and white photos, showing at least three views o f series is July 1, 1975, and winners w ill be announced the model. Include some familiar object in at least in the September 1975 issue. Subsequent entries will one photo to indicate the size o f the model. Try to be due the first o f each month and winners w ill be include photos o f any significant details. announced the second month following each dosing. This month’s winner is W A LT WIN- BERG , from Richmond, B.C., Canada. His entry is a 75 inch span, original design biplane, powered by compressed air. The 5-cylinder rotary engine turns a 20 inch propeller, and each cylinder has a 1/2 inch bore and 1/2 inch stroke. The engine is believed to be a Knepper design, built in Portland, Oregon, around 1930. Believe it or not, total weight of the model is only 16-1/2 ounces! By comparison, a modern R/C biplane of the same span, usually weighs about 10 pounds. 4 FEBRUARY MODEL 0 1976 BUILDER volume 6, number 50 1105 SPURGEON, BOX 4336, SANTA ANA, CALIFORNIA 92702 (714) 547-3963 STAFF CONTENTS ED ITO R FEATURES Wm. C. Northrop, Jr. GENERAL MANAGER WORKBENCH, B ill N o r th ro p ...............................................................................