Kuznetsov NK-4
{{Short description|1950s Soviet/Russian turboprop aircraft engine}}
| {{Infobox Aircraft Begin
| name = NK-4 | image = | caption = }} {{Infobox Aircraft Engine | type = Turboprop | national origin = Soviet Union | manufacturer = Kuznetsov Design Bureau | major applications = Ilyushin Il-18 | number built = | program cost = | unit cost = | developed from = | variants with their own articles = | developed into = }} |
The Kuznetsov NK-4 is a turboprop engine, designed by the Kuznetsov Design Bureau.
Development
Development of the NK-4 began on September 27, 1955 at the Kuznetsov Design Bureau. Factory tests were passed on April 17, 1956 and state tests were passed in 1957. At the time, the NK-4 was considered an economical and technologically advanced engine.
A modified version of the NK-4 that improved in terms of service life and efficiency, the NK-4A, passed factory tests in October 1957. State tests of the NK-4A were passed in June 1959.
Applications
Specifications (NK-4)
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|ref=Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK{{cite book|title=Otechestvennaya aviatsionno-kosmicheskaya tekhnika - SAMARSKIY NTK|publisher=SNTK imeni N.D.Kuznetsova|location=Samara, Russia|language=ru|pages=21, 72}}
|type=Turboprop engine
|length={{cvt|2.77|m}}
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|weight={{cvt|970|kg}} without propeller
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See also
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