Fokker Dr.1 9 Cylinder Rotary Engine
The 9 cylinder Oberursel UR II generating 110 HP making the Dr.1 modestly speedy in level flight.
Dr1 Engine
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Fokker Dr.1 9 Cylinder Rotary Engine
The 9 cylinder Oberursel UR II generating 110 HP making the Dr.1 modestly speedy in level flight.