| Fl 265 | |
|---|---|
 Flettner Fl 265 in flight | |
| General information | |
| Type | Experimental helicopter |
| Manufacturer | Flettner |
| Designer | |
| Primary user | Luftwaffe |
| Number built | 6 |
| History | |
| First flight | 1939 |
| Variant | Flettner Fl 282 |
TheFlettner Fl 265 was an experimentalhelicopter designed byAnton Flettner.
This helicopter, developed in 1938 with the support ofNazi Germany'sKriegsmarine, made it possible, for the first time, to transition from powered rotary-wing flight toautorotation and back again, making it the safest helicopter of its time. In contrast to theFl 185, the Fl 265, believed to be the pioneering example of asynchropter, had two intermeshing rotors 12 m in diameter, powered by a 160 hp (119 kW)BMW-Bramo Sh 14 A radial engine in the nose of the fuselage, fitted with a fan to assist cooling. Six helicopters were constructed, but series production was curtailed in favour of theFlettner Fl 282.[1]
In 1939 the helicopter was tested by test pilot Richard Perlia. A second test pilot alongside Perlia unfortunately had a fatal accident during a test flight.[2]
Data from[3]
General characteristics
Performance
