Test flights with Arno Vogel winged aircraft.
Swingarm flight models have been flying at the IIa in Frankfurt am Main since 1909. In 1920, Senator Zeise (see "Flugsport'4 p. 209/1933") appeared on the Wasserkuppe for the first Rhön competition with a glider with Vortriebsschwingen. Unfortunately, this plane broke down prematurely. Furthermore, after his experiments in 1925 ("Flugsport" p. 369/1925) with a swingarm bicycle were unsuccessful, Dr. Brustmann had a gliding swingarm hocli plane constructed by A. Lippisch, with which Werner Krause and Fritz Stamer carried out gliding wing flights and thereby doubled the gliding flight
("Flugsport" p. 372/1930).
Since that time, no significant progress has been made in this field. Experiments to determine the power requirements of swing model aircraft have been carried out relatively rarely. The main thing was to first investigate whether the power requirement for winged flight models is lower than for kite modelines. Such investigations were carried out by Arno Vogel, Plauen, 1941 (cf. "Flugsport" p. 221/1941), which also developed a very simple swing mechanism that allows the air to be cut through as drastically as possible on impact and enables an effect of uplift and propulsion during impact. Arno Vogel's moclellability tests resulted in a
power requirement of 5.2 mkg/sec for the kite model and only 4.1 mkg/sec for the winged flight model.
Vogel now decided to try his wings in natural size for human flight. He built his wings with propulsion device through legs with the help of Dr. Karl Förster NSFK. and Martin Förster FLHJ. into a school glider 38. Cf. the adjacent figure. During the flight tests, the aim was to determine the effect of the wings and to increase the gliding distance. The test aircraft was developed by pilot Stubaf. Pult, NSFK.-Stand-darte 37, Chemnitz, first with detected wings in gliding flight and then, for comparison, with operation of the wings, without any Arno-Vogel-Schwingen experimental aircraft. On the fuselage of the school glider 38 you can see the attached drive rod and on the cut off wing tip the lever arrangement for the wings. Below: Gliding flight with wings detected. Total area 14 m2. Wt. 108 kg. In spite of the operation of the pedal levers by legs and the operation of the stick by hand, good longitudinal and lateral stability was found.
The flight results were as follows: 18. 8. 42 Gliding: ailerons coupled with rudder, flight duration 14 sec.18
. 8. Swing flight: Flight attitude good, right turn, 18 sec.18
. 8. Wing flight: distance improvement observed, 18 sec.19
. 8. Wing flight: To achieve a faster swing of the wings, a rubber rope is stretched along the tie rods. Result: Stretching movement
more comfortable, impact is too slow, 17 sec.19
. 8. 3 gliding flights: 1. SW-WincI 2-4, flight time 12 sec, flight distance 159 m.
Instead of the rudder pedals, there are levers that are pushed forward with the legs and actuate the force through the linkage and
angle lever.
2. Glide: SW wind 3-5, flight time 13 sec, flight distance 163 m. 3. Glide: SW wind 3-5, flight time 12 sec, flight distance 168 m,
19. 8.
20.8.2 Wing flights: Experiment with lower rope tension. Serve still too slow. Flight results are therefore unfavorable. 1. Swing flight: wind 2-4,
flight duration 10 sec, swing flight distance 175 m. 2. Swing flight: SW wind 3-4, flight duration 10 sec, flight distance 165 m.20
. 8. Glide: SW wind 0-2, flight duration 9 sec, flight distance 152 m. 20. 8.
SW wind 1—3, flight time 12 sec, flight distance 192 m, distance magnification 40 m.20
. 8. Gliding flight: SW wind 0-1, flight duration 12 sec, flight distance 215 m.20
. 8. Swing flight: Without bungee cord. The starting point is a few meters higher. SW wind 0-1, flight time 19 sec, flight distance 258 m, distance magnification 43 m.
Due to the onset of thunderstorms and heavy rain, further attempts could not be carried out.
Swinging speed flight experiments such as those of Vogel and Brustmann are extremely important. Only in this way is it possible to solve
the problem step by step and to work out documents on service requirements. Wings can only be attempted in the air
