The Aerodromerc News Enthusiasts
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A unique selection of World War I and By and For Golden Age laser cut Electric Flight short kits and plans The AerodromeRC News Enthusiasts VOL 1 - NO 10 October 2005 www.AerodromeRC.com also improves the look as the fins on these motors were E�������� very fine and cannot be properly simulated by alternate By Kurt Bengtson stacks of thin ply and balsa. The double thread method can also be used to give a three-dimensioned look. It has been a summer of change here at AerodromeRC. In sum, a new line of models, free flight design, laser cut We introduced a line of small 1/12th scale models for strip stock, spoked wheels and WWI dummy motors are indoor/backyard flight and free flight. The first is the all new introductions at AerodromeRC. Many of these are 1/12th scale SE5a for AXI power followed by the GWS IPS a direct result of comments or suggestions that customers powered Albatros DII and the GWS IPS powered Fokker have made over the years. I value this feedback and DR.1. Our first foray into free flight designs is our GWS encourage customers to suggest ideas. IPS powered Sparrow II Version 2. These models are not really a change in direction for our products but a supplement to them. I like to design models of all sizes and feel that market for the smaller versions warrants my offering the types. Naturally, the AerodromeRC A��������RC F����� EIII design philosophy is still active. I will not add dihedral or change the overall outline of the model. Ailerons E�������� are featured in models without dihedral and they are coupled to the rudder servo in order to save weight and By Kurt Bengtson simplify construction. I feel that even though the models The Fokker EIII Eindecker is an oft modeled subject and are small, they should still be interesting until now, I was not very interested to subjects for the intermediate builder. design one for AerodromeRC. Having Therefore, I do not skimp very much on designed four variants of the Pfalz EI, detail. Weight savings are accomplished I����� ���� I���� the Fokker EIII seemed to be too similar by changes in wood thickness and type. 1 • E�������� for me to pay serious attention. However, Triple laminated longerons from laser 1 • A��������RC F����� work had begun on a model about a year ago. It was one of those models that cut 1/32” balsa strips are used in some EIII E�������� of the models. This type of construction received attention when other design offers strength and low weight. These 3 • B������� T��: L������ work got stale. As sometimes happens, smaller kits are also featuring nearly 4 • A��������RC F����� the design caught my interest and I was complete wood parts including leading D�1 M�� fully engaged in the process. I refer edge, spar, stringer, sheeting and 5 • P����� �� F��� M����� to this occurrence as “falling in love” trailing edge stock. Look for this feature with the design. I found new ideas and in larger kits as well. I use the laser to opportunities for design and now that it cut strip wood from the balsa stock. The laser cut stock is finished, I am very happy with the result. In this article, will fit better and for customers in Europe, hunting down I will discuss the model and the original aircraft, pointing English dimensioned wood will not be required. out corresponding features and comparing them. The free flight Sparrow II V2 is for timed shut down The Fokker E series monoplanes were the first truly of electric power and a spiral back to earth style flight. effective fighter aircraft. The reason is that for the first Its construction has been considerably lightened from time, a machine gun was placed to fire directly through the our R/C version. While the Sparrow II V2 is for FF use, propeller. The whole aircraft could be aimed at the target. it can be modified for indoor /backyard R/C flight very Finally, accurate targeting easily. I retained the separate rudder and elevators. The was possible. The result was D�� ��� ����� fuselage has the same amount of internal space as the R/ spectacular for the Germans In the early months of C version. and a disaster for the Allies. the war, aerial combat was between opposing observers The new Fokker EIII introduced two new construction Allied observation aircraft in two seater aircraft flying features. The first is a laser cut, spoked wheel kit with a became the primary target. parallel to each other. They one-time use jig. I’ll be using this feature on more models The period was referred were firing at each other’s in the future. It does add a bit to the cost of the model but to as the Fokker Scourge. aircraft with rifles and later Before that time, observation machine guns. While not getting the exact scale spoked wheels included in the kit as effective as later fighter is a real plus. The second is a WWI dummy rotary engine. aircraft could do their aircraft, some aircraft were I found a way to incorporate a version of the Lycoming work unfettered with the shot down in this manner. style dummy engine I developed for the Stearman. That concern of being shot down. motor is rather expensive as I used stacks of laser cut discs Observation aircraft were to make the cylinders. In the Oberursal, I removed most designed for optimum stability as a camera platform. Agility of the discs and replaced it with a printed-paper card and speed were contrary to their purpose. The idea that stock sleeve, lowering the weight and cost. The design these aircraft were obsolete or not technically advanced is The AerodromeRC News VOL 1 - NO 10 Page 2 www.AerodromeRC.com not the case. Taking aerial photographs with existing camera Second, it reinforces the joining of the spars. Third, it technology was difficult and required a slow aircraft with strengthens the fuselage. The tubing fits into plywood low engine vibration characteristics. Further, it required donuts epoxied to the wooden sides of the front portion of a two-man crew. The pilot needed to reach the correct the fuselage. With a suitable mounting scheme, the wings location and verify the target. The cameraman needed to can be made removable. However, this is not detailed in the concentrate on taking the photographs. Remember in those current version of the kit. days, there were no accurate aerial maps and from above, The construction of orientation is not easy. Landmarks do not look the same D�� ��� ����� the fuselage is similar from 5000 feet. Pilots did get lost. A major reason for the Some historians say that Fokker to other AerodromeRC copied a Morane H to make his Fokker Scourge could be that the “Fokker Fodder” were not Eindecker. While the aircraft share models and features designed to consider defensive measures. With hundreds a similar layout, the construction a wooden slab sided perhaps thousands of Allied vulnerable observation aircraft technique Fokker used was based front box and a built in the air, it was carnage. The Allies had too much invested on bent steel tubing rather than up rear frame. The wood. The Pfalz EI, which was a and needed the information so badly that these unfortunate licensed copy of the Morane H, had forward section of the crews had to endure the Fokker menace. Later, observation inferior performance to the Fokker. fuselage is constructed aircraft were fitted with machine guns and could fly higher This fact indicates Fokker had a of a combination of and faster to counter the Fokker. better and unique design. balsa and plywood Anthony Fokker had designed aileron controls for aircraft forming a 3/16” thick but chose the more conventional wing warping technique wall. The design locks the wings, undercarriage and motor for the Eindecker. Wing warping required flexibility in the into a common structural unit for strength. 3/16” balsa for construction but rigidity at the same time. Heavy reliance uprights and cross pieces is laser cut and included in the kit. on wire rigging made this possible. In the AerodromeRC There is enough stock supplied for spliced longerons. Fokker EIII, wing warping was not used, as the method The cowl is built from plywood and balsa and sanded to a does not make a particularly pleasant flying experience. rounded over shape. There are locating holes provided for Construction is difficult and the structure is fragile. 4-40 blind nuts to allow the cowl to be removable. The cowl Instead, as in the case of other AerodromeRC monoplane aligns with the fuselage, which has blue/pink Styrofoam designs, hidden top edge hinged trailing edge ailerons are side cheeks, and the whole covered with metallized foil or employed. A pair of in wing servos drives these ailerons silvered iron on covering. It may be burnished with a rotating from below. From the top, the presence of the ailerons is eraser fitted in a low speed drill for a scale appearance. nearly impossible to detect. They are constructed from 1” trailing edge stock, which is beveled at the aileron leading edge to allow the aileron to deflect downward. The wing of the Eindecker was of the under cambered The dummy motor doubles as the motor mount. The kit airfoil and used two spars which also served as attachment was designed for the AXI 2820 direct drive brushless motor points for rigging wire. These features are replicated in the but any planetary style geared motor of similar diameter model.