Corrugated propeller

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The corrugated propeller is an aerodynamic form of propulsion that works on the flapping wing principle. In contrast to the rotary wing of the helicopter , with the corrugated propeller a wing-shaped wing is rotated around its longitudinal axis . A second wing is usually placed behind the flapping wing to increase the airflow. A corrugated propeller generates propulsion and lift .

In the 1950s and 1960s, the research results of the engineer Wilhelm Schmidt from Dresden , which indicated that it would be possible to build aircraft heavier than air with corrugated propellers in the foreseeable future , caused a sensation. It soon turned out, however, that the forward movement could be achieved with corrugated propellers, but not the lift. From 1968 onwards, Schmidt and Ulrich Queck, a graduate economist, concentrated on the drives of airships (dolphin airship). The research was later discontinued without going beyond the experimental stage. Schmidt has given his archive and various experimental equipment to the Otto Lilienthal Museum as a pre-emptive.

Since the 1990s, research on the corrugated propeller has been carried out again in some countries, with the focus again on the movement of airships.

Web links

Individual evidence

  1. Bleibler, J. (2002): The fifties and sixties - large airship projects in Germany and the USA, in: Meighörner, W. (Ed.): Airships that were never built, Friedrichshafen, p. 168 ff.
  2. ^ Schmidt Collection in the Otto Lilienthal Museum