Bill-Higdon
Well-Known Member
Gentlemen I present the Chappedelaine Aérogyre
From a Facebook posting in French,, translated by Google
"The Aérogyre Chappedelaine (France - 1934). Studied in the early 1930s by Mr. Chappelaine with the collaboration of Mr. Desgrandschamps, the Aerogyre had to solve the problem of landing at very low speed. "An elongated surface placed in a current of air and mobile around its major axis of symmetry, rotates indefinitely around this axis and generates a lift much higher than that obtained with the same surface fixed however under the most favorable angle. ". In the case which concerns us, it is appealed to the effect of rotor produced by a wing which one lets turn freely around its longitudinal axis. Discs, at the ends of the wings, limit the marginal losses, and, as a result, increase the yield. If the speed of rotation is mechanically accelerated, there is a noticeable improvement in performance. Thus the normal flight could be carried out with the fixed rotor, working like an ordinary wing, disengaging it only to return to the ground (speed of rotation of 3 revolutions - second). The Aerogyre consists of a 12m² rotating wing surmounted by a small fixed upper wing of 6m² to have a warping system. However, the final Aerogyre would only have rotating wings that could be immobilized. A differential mechanism will allow the pilot to vary the speed of auto-rotation of each of the wings when they turn, or to vary their incidence in the case of fixed-wing flight. Moreover, by means of a transmission and a clutch, it would be possible to activate, thanks to the engine, the rotation of the wings so as to reinforce, at will, the hyper lift of the wing. This wing layout was mounted on a Caudron Luciole fuselage, some elements of which have been reinforced, and the fin significantly enlarged. As the Aérogyre must return to the ground under a very steep slope, from 30 to 35° on the horizontal, with a vertical speed of 4 to 5 meters per second, the firm Messier has built, for this device, legs long-stroke elastic landing pads. Unfortunately, the development test flight conducted near Chevreuse ended tragically because a part having broken, the Aérogyre fell in a garden in the town of Magny les Hameaux and was completely destroyed. The pilot, Roger Rigaud, was killed instantly."
From a Facebook posting in French,, translated by Google
"The Aérogyre Chappedelaine (France - 1934). Studied in the early 1930s by Mr. Chappelaine with the collaboration of Mr. Desgrandschamps, the Aerogyre had to solve the problem of landing at very low speed. "An elongated surface placed in a current of air and mobile around its major axis of symmetry, rotates indefinitely around this axis and generates a lift much higher than that obtained with the same surface fixed however under the most favorable angle. ". In the case which concerns us, it is appealed to the effect of rotor produced by a wing which one lets turn freely around its longitudinal axis. Discs, at the ends of the wings, limit the marginal losses, and, as a result, increase the yield. If the speed of rotation is mechanically accelerated, there is a noticeable improvement in performance. Thus the normal flight could be carried out with the fixed rotor, working like an ordinary wing, disengaging it only to return to the ground (speed of rotation of 3 revolutions - second). The Aerogyre consists of a 12m² rotating wing surmounted by a small fixed upper wing of 6m² to have a warping system. However, the final Aerogyre would only have rotating wings that could be immobilized. A differential mechanism will allow the pilot to vary the speed of auto-rotation of each of the wings when they turn, or to vary their incidence in the case of fixed-wing flight. Moreover, by means of a transmission and a clutch, it would be possible to activate, thanks to the engine, the rotation of the wings so as to reinforce, at will, the hyper lift of the wing. This wing layout was mounted on a Caudron Luciole fuselage, some elements of which have been reinforced, and the fin significantly enlarged. As the Aérogyre must return to the ground under a very steep slope, from 30 to 35° on the horizontal, with a vertical speed of 4 to 5 meters per second, the firm Messier has built, for this device, legs long-stroke elastic landing pads. Unfortunately, the development test flight conducted near Chevreuse ended tragically because a part having broken, the Aérogyre fell in a garden in the town of Magny les Hameaux and was completely destroyed. The pilot, Roger Rigaud, was killed instantly."