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Dornier Do 231

Summary

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The Dornier Do 231 was a 1970s VTOL transport aircraft project developed by Dornier.

Do 231
Role VTOL transport aircraft
Manufacturer Dornier Flugzeugwerke
Status Cancelled
Primary user Lufthansa (intended)
Number built 0
Developed from Dornier Do 31

Design and development edit

The Do 231 was a result of a design competition conducted in the early 1970s by the German Federal Ministry of Economics to create a 100-person VTOL transport aircraft. Based on the earlier Do 31, the Do 231 was to have shoulder-mounted cantilever swept wings and a T-tail.[1]

The 1973 oil crisis rendered the Do 231 proposal as uneconomical due to the high fuel consumption necessary for vertical takeoff and landing, and the aircraft was cancelled in 1976 without a single prototype being built.[1]

Variants edit

Do 231C
Commercial variant for Lufthansa with a capacity of 100 passengers.[1][2]
Do 231M
Military variant with a stretched fuselage and a rear loading ramp.[2]

Specifications (Do 231C) edit

Data from [3]

General characteristics

  • Capacity: 100 passengers
  • Length: 35.55 m (116 ft 8 in)
  • Wingspan: 26.0 m (85 ft 4 in)
  • Height: 9.55 m (31 ft 4 in)
  • Wing area: 120 m2 (1,300 sq ft)
  • Aspect ratio: 5.63
  • Powerplant: 2 × Rolls-Royce RB.220 jet engines
  • Powerplant: 12 × Rolls-Royce RB.202-25 lift engines

Performance

  • Cruise speed: 900 km/h (560 mph, 490 kn)

See also edit

Related development

References edit

  1. ^ a b c Zeitung, Süddeutsche (17 May 2010). "Da flieg ich doch vom Dach weg". Süddeutsche.de (in German). Retrieved 2021-11-21.
  2. ^ a b Dornier Do 31 and Do 231. Italy: Edito-Service S.A. 1989.
  3. ^ Huinink, B.; Brink, K. B. The VTOL Jet for a Future V/STOL Transport System. NASA.