Harman Patil (Editor)

Flettner Fl 265

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Top speed
  
140 km/h

First flight
  
1939

Designer
  
Anton Flettner

Length
  
6.16 m

Manufacturer
  
Flettner

Flettner Fl 265 Flettner Fl265 helicopter development history photos technical data

The Flettner Fl 265 was an experimental helicopter designed by Anton Flettner.

Contents

Design and development

Flettner Fl 265 Flettner Fl265 WW2 Pinterest

This helicopter, developed in 1938 with the support of Nazi Germany's Kriegsmarine, made it possible, for the first time, to transition from powered rotary-wing flight to autorotation and back again, making it the safest helicopter of its time. In contrast to the Fl 185, the Fl 265, believed to be the pioneering example of a synchropter, 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 the Flettner Fl 282.

Operators

 Germany
  • Luftwaffe

    • Specifications (Fl 265)

    Data from

    General characteristics

    Flettner Fl 265 Special Hobby 148 Flettner Fl265

  • Crew: 1
  • Length: 6.16 m (20 ft 3 in)
  • Height: 2.82 m (9 ft 3 in)
  • Empty weight: 800 kg (1,764 lb)
  • Max takeoff weight: 1,000 kg (2,205 lb)
  • Powerplant: 1 × Bramo Sh.14A 7-cyl. fan-assisted air-cooled radial piston engine, 119 kW (160 hp)
  • Main rotor diameter: 2× 12.3 m (40 ft 4 in)
  • Main rotor area: 237.6 m2 (2,558 sq ft) total area

    • Performance

  • Maximum speed: 140 km/h (87 mph; 76 kn) at sea level
  • Range: 300 km (186 mi; 162 nmi)
  • Service ceiling: 4,100 m (13,500 ft)

    • Flettner Fl 265 httpsuploadwikimediaorgwikipediacommonsthu

    Flettner Fl 265 Flettner Fl265 helicopter development history photos technical data

    Flettner Fl 265 Flettner Fl265 helicopter development history photos technical data

    Flettner Fl 265 Flettner Fl 265 Wikipedie

    References

    Flettner Fl 265 Wikipedia
    (Text) CC BY-SA


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