Flettner Fl 185
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The Flettner Fl 185 was an experimental Nazi German gyrodyne developed by Anton Flettner. It was unique in its operation, which could fly both as a helicopter and as a gyroplane.
Design and development
This aircraft was developed in 1936 with support of the Kriegsmarine. It was powered by a Script error: No such module "convert". BMW-Bramo Sh 14 A radial piston engine with forced-air cooling, mounted at the nose. The engine drove a 12 m diameter main rotor and two auxiliary propellers mounted on outriggers attached to the fuselage.
At take-off or when hovering, the auxiliary propellers worked in opposition to each other and served to cancel the torque of the main rotor,[1] a function handled by a single, variable-pitch tail rotor on contemporary helicopters. In forward flight, however, both propellers worked to provide forward thrust while the rotor autorotated, as in a twin-engined autogyro.[1] The landing gear consisted of a nose-wheel, two smaller stabilising wheels under the outriggers and a tail skid. Only one prototype was constructed.
Specifications (Fl 185)
See also
Notes
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References
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Further reading
- Die Deutsche Luftrüstung 1933–1945 Script error: No such module "citation/CS1".
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