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The Kuznetsov NK-93 was a civilian aircraft engine, a hybrid between a turbofan and a turboprop known as a propfan. The engine was also unique in having a separate duct around the contra-rotating propellers , as most other propfans are unducted.
NK-108 propfan. Like the NK-110, except in tractor instead of pusher configuration. [11] NK-110 propfan. Like the NK-62, this engine had four-bladed contra-rotating propellers of 4.7 m (15 ft 5 in) in diameter, and it supported a cruise speed of Mach 0.75 at 11,000 m (36,000 ft) altitude.
Kuznetsov NK-92 turbofan (modified to NK-93 further on). 220 to < 350 kN; Kuznetsov NK-93 propfan. Projected to power the Il-96, Tu-204, and Tu-330. Kuznetsov NK-114 Ekranoplanes and aircraft engines; Kuznetsov NK-116 Beriev Be-2500 Neptun engine; Kuznetsov NK-144 afterburning turbofan. Powered the early models of the Tupolev Tu-144 supersonic ...
Other contra-rotating propeller engines that featured on common aircraft included 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 high-speed military bomber and Antonov An-22 military transport aircraft, and the Armstrong Siddeley Double Mamba (ASMD ...
Pages in category "Propfan engines" The following 11 pages are in this category, out of 11 total. ... Kuznetsov NK-92; Kuznetsov NK-93; M. Metropolitan-Vickers F.3;
Projected double-deck version of Il-96 for 550–600 passengers and powered by Kuznetsov NK-93 propfan engines. Following flight tests in 2007 the engines were removed and the aircraft was not developed further.
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The A-90 uses one NK-12 engine mounted at the top of its T-tail, along with two turbofans installed in the nose. In the 1980s, Kuznetsov continued to develop powerful contra-rotating engines. The NK-110, which was tested in the late 1980s, had a contra-rotating propeller configuration with four blades in front and four in back, like the NK-12.