First Working Prototype of Rotary Engine

February 1, 1957

Felix Wankel‘s first working prototype DKM 54 of the Wankel engine runs in Germany. The Wankel engine is more commonly referred to as the “rotary engine”, because it is the most successful design of such an engine, although there are other engines that are considered rotary. The most common use of the Wankel engine is by Mazda in their RX series of cars.