:Dornier Do 231
{{Short description|German VTOL transport aircraft project}}
{{Multiple issues|{{refimprove|date=November 2021}}{{one source|date=November 2021}}{{original research|date=November 2021}}}}
| {{Infobox Aircraft Begin
|name=Do 231 }} {{Infobox Aircraft Type |type=VTOL transport aircraft |manufacturer=Dornier Flugzeugwerke |designer= |first flight= |introduced= |retired= |status=Cancelled |primary user=Lufthansa (intended) |more users= |produced= |number built=0 |unit cost= |developed from=Dornier Do 31 |variants with their own articles= }} |
The Dornier Do 231 was a 1970s VTOL transport aircraft project developed by Dornier.
Design and development
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.{{Cite web|last=Zeitung|first=Süddeutsche|title=Da flieg ich doch vom Dach weg|url=https://www.sueddeutsche.de/auto/dornier-do-31-da-flieg-ich-doch-vom-dach-weg-1.580019|access-date=2021-11-21|website=Süddeutsche.de|date=17 May 2010 |language=de}}
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.
Variants
;Do 231C
:Commercial variant for Lufthansa with a capacity of 100 passengers.{{Cite book|url=https://cdn.ecommercedns.uk/files/2/229812/2/6483102/document-20190715-0122.jpg|title=Dornier Do 31 and Do 231|publisher=Edito-Service S.A.|year=1989|location=Italy}}
;Do 231M
:Military variant with a stretched fuselage and a rear loading ramp.{{Cite book|url=https://cdn.ecommercedns.uk/files/2/229812/2/6483102/document-20190715-0122.jpg|title=Dornier Do 31 and Do 231|publisher=Edito-Service S.A.|year=1989|location=Italy}}
Specifications (Do 231C)
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