活塞式飞机(Piston EngineAirplane),顾名思义就是以活塞式航空发动机作为动力的飞机。它适用于亚音速飞行,一般速度低于750公里/小时。从1903年第一架有动力的飞机问世到第二次世界大战末期,在这期间几乎所有的飞机都是以活塞式航空发动机作为动力的。50年代以来,在军用飞机和大型民用飞机上逐步被燃气涡轮发动机所取代。但由于活塞式航空发动机经济性好,所以在轻型低速飞机上仍得到应用。 Piston Engine Airplane, as its name suggests, is a piston-powered aero-engine-powered aircraft. It is suitable for subsonic flight, the general speed of less than 750 km / h. From the launch of the first powered aircraft in 1903 to the end of World War II, almost all of the aircraft were powered by piston-aero engines during this period. Since the 1950s, military aircraft and large commercial aircraft gradually replaced by gas turbine engines. However, due to its economy, Piston Aero Engines are still used in light low-speed aircraft.