There were other contra-rotating propeller engines that featured on common aircraft, such as the four powerful Kuznetsov NK-12 engines (each powering its own set of coaxial contra-rotating propellers) on the Soviet Union's Tupolev Tu-95 Bear high-speed military bomber and Antonov An-22 military transport aircraft, and the Armstrong Siddeley Double Mamba (ASMD) engines (both connected to a lone set of coaxial contra-rotating propellers) on the British Fairey Gannet anti-submarine aircraft.