HV-1 Mufli
The HV-1 Mufli was a muscle -powered aircraft that was built in 1933 by the engineers Helmut Haeßler and Franz Villinger , who were employed by the Junkers aircraft factory in Dessau , in the workshops of the Halle Fliegerortgruppe .
This aircraft was not self-launching, but had to be catapulted with a rubber rope. The glider pilot Karl Dünnebeil reached a flight distance of 235 meters with a flight time of 23 seconds with the Mufli on August 30, 1935 at Frankfurt-Rebstock airport in a straight flight.
It was not possible for the HV-1 to start on its own because Haeßler and Villinger had come to incorrect results in preliminary investigations with regard to the performance that can be achieved by humans. They had done their tests with two test persons whose bicycles were fixed to each other and assumed twice the performance compared to what was actually achievable.
Apart from the misinterpretation mentioned above, this project was unsuccessful because these grandfathers of muscle flight had built a machine that largely copied the principles of glider construction known at the time . In addition, the materials available at that time, as well as the technical possibilities, did not allow a continuous flight with muscle power.
literature
- David Anthony Ready. The history of man-powered flight . Elsevier, 2014.
- Oliver Heyn. A flying cyclist on the Dolmar , in: Meininger Heimat-Klänge, regional history supplement in Meininger Tageblatt, No. 6 (2019).
- In Germany manpowered flight is 50 years old. Popular Mechanics , October 1979, pp. 109–111 , accessed October 25, 2017 .
Web links
- On the 100th birthday of Franz Villinger. (PDF) In: Annual Report 2007. Akademische Fliegergruppe an der Universität Karlsruhe eV , pp. 29–31 , accessed on June 2, 2016 .
Individual evidence
- ^ Fritz Wittekind: Man-Power Flight. (PDF) In: FLIGHT, October 24, 1935. Flightglobal.com , October 24, 1935, p. 430 , accessed on October 25, 2017 (English).