• Source: Klimov VK-3

The 3/info/klimov" target="_blank">Klimov 3/info/vk" target="_blank">VK-3 was the first Soviet afterburning bypass turbojet engine. Designed by S V Lyunevich at 3/info/klimov" target="_blank">Klimov, at OKB-117 in 1949, this engine first ran in 1952, and was qualified at 5,730 kg (12,632 lb) thrust (dry) and 8,440 kg (18,607 lb) thrust (with afterburner) in 1954. The 3/info/vk" target="_blank">VK-3 was developed for the Mikoyan-Gurevich I-3 (I-380) and I-3U/I-5 (I-410) fighters. First flown in the I-3U in July 1956, the engine's performances was good but its reliability was poor. Even after modifications in December 1956 when newly designed compressor blades were installed, developmental problems continued, the program was ultimately canceled in January 1958. The engine was superseded by the Lyulka AL-7F, a less modern but more efficient engine.




Design


The 3/info/vk" target="_blank">VK-3 is a single-shaft turbofan engine with a 10-stage axial compressor, an annular combustion chamber, a three-stage turbine, an afterburner and a variable supersonic nozzle. Bypass air is drawn from the second stage of the compressor to 12 external pipes and is directed into the turbine through an adjustable mixing valve, bypassing the combustion chamber. The 8th stage compressor has two position adjustable guide vanes.




Applications


Mikoyan-Gurevich I-3
Mikoyan-Gurevich I-5




Specifications


Data from



General characteristics

Type: afterburning turbofan
Length:
Diameter:
Dry weight: 1,850 kg (4,079 lb)



Components

Compressor: 10 stage axial
Combustors: annular combustion chamber
Turbine: three-stage



Performance

Maximum thrust: 5,730 kg (12,632 lb) thrust (dry) and 8,440 kg (18,607 lb) thrust (with afterburner)
Thrust-to-weight ratio: 4.56




See also



Comparable engines

Pratt & Whitney TF30
Pratt & Whitney F100
Pratt & Whitney PW1120
General Electric F110
Saturn AL-31
Shenyang WS-10
Related lists

List of aircraft engines




References






External links


"Photo of a 3/info/klimov" target="_blank">Klimov 3/info/vk" target="_blank">VK-3 engine". Retrieved 30 December 2015.

Kata Kunci Pencarian:

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