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The resulting engine had better high-altitude performance and entered production in 1938. However, the engine proved unreliable and suffered from failure of gears in the reduction gearbox. [1] Later the M-88 was designed to address the shortcomings of the M-87. At first the M-88 was not a success, but the designers persisted, and the M-88 was ...
ANT-22/MK-1: Armoured six-engine recce flying boat prototype, development of ANT-11, 1934. ANT-23/I-12: Experimental twin-engined fighter equipped with two recoilless 75mm cannons, 1931. ANT-24/TB-4: Projected enlarged version of ANT-16 powered by four M-44 engines, precursor of ANT-26, 1931. ANT-25/RD: Single-engine monoplane long-range bomber ...
The M-88 was designed to address the shortcomings of the Tumansky M-87.The improvements incorporated in the M-88 were a strengthened crankcase, crankshaft, connecting rods, waffle ribbing at the piston bottom and a two speed geared centrifugal supercharger.
A further development of this engine, the NK-89, was designed to run on both liquified natural gas [2] (LNG) and kerosine. [ 2 ] On April 15, 1988, [ 1 ] one NK-88 running on cryogenically stored LH 2 [ 2 ] was tested in flight in the starboard nacelle of the Tupolev Tu-155 flying laboratory. [ 1 ]
The exhaust ports of a NK-12 in an outboard nacelle on a Tu-95. The Kuznetsov NK-12 is a Soviet turboprop engine of the 1950s, designed by the Kuznetsov design bureau.The NK-12 drives two large four-bladed contra-rotating propellers, 5.6 m (18 ft) diameter (NK-12MA), and 6.2 m (20 ft) diameter (NK-12MV).
The NK-8 was a low-bypass turbofan engine built by the Kuznetsov Design Bureau, in the 90 kN (20,000 lb f) thrust class. It powered production models of the Ilyushin Il-62 and the Tupolev Tu-154 A and B models.
Used in Tupolev Tu-123 Yastreb drone. R-15-300M; R-15B-300: Electronic engine controls (the first for a Soviet engine). and modifications to increase life span. Original engine for the MiG-25P, MiG-25R and variants. R-15BD-300: Improved and more powerful version for MiG-25PD and MiG-25PDS. Engine Lifespan increased up to 1000 Hours. [1]
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.)