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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.
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 ...
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This Bureau also produced the Kuznetsov NK-144 afterburning turbofan engine. This engine powered the early models of the Tupolev Tu-144 SST. The Kuznetsov Design Bureau also produced the Kuznetsov NK-87 turbofan engine that was used on the Lun-class ekranoplan. (Only one such aircraft has ever been produced.) [citation needed]
The primary engines for the development rockets were Kuznetsov NK-15 and Kuznetsov NK-15V (later developed into Kuznetsov NK-33 and Kuznetsov NK-43). Ultimately, these designs were successful but arrived too late. By the time the bugs in this very advanced design were rectified, the N1 rocket program had been cancelled.
The NK-92 was proposed to power the Ilyushin Il-106 heavy military transport aircraft. Development of the Il-106 aircraft and its NK-92 engine slowed in the early 1990s. However, aspects of the engine's design were applied to the NK-92's civil engine counterpart, the Kuznetsov NK-93, which was tested in flight in the first decade of the 2000s. [1]
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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.