Kuznetsov NK-6

{{Short description|1950s Soviet/Russian turbofan aircraft engine}}

{{Infobox Aircraft Begin

| name = NK-6

| image =

| caption =

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{{Infobox Aircraft Engine

| type = Turbofan

| national origin = Soviet Union

| manufacturer = Kuznetsov Design Bureau

| first run = May 1958

| major applications =

| number built =

| program cost =

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| developed from =

| variants with their own articles =

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The Kuznetsov NK-6 was a low-bypass afterburning turbofan engine, designed by the Kuznetsov Design Bureau.

Development

Development of the NK-6 started in 1955 at the Kuznetsov Design Bureau. It was the first afterburning by-pass engine made in the Soviet Union. With a maximum thrust of {{cvt|216|kN|lbf|}}, it was the most powerful jet engine in the world in the early 1960s.{{cite web |title=Tot samyy "NK"|url=http://engine.aviaport.ru/issues/08/page39.html |website=engine.aviaport.ru |publisher=Nikolay Aleksandrov |access-date=4 October 2021 |language=ru}} Despite this fact, development of the NK-6 was halted in July 1963. The accumulated experience of the NK-6 project was subsequently used in the development of the NK-144.

A modified version of this engine, the NK-7, was intended for the Soviet Navy and had a takeoff thrust of {{cvt|216|kN|lbf|}}.

Applications

  • Project "106" (proposed)
  • Tupolev Tu-95LL (testbed)
  • Tupolev Tu-123{{cite web |title=Tupolev Andrei Nikolaevich |url=http://www.aviation.ru/Tu/ |website=www.aviation.ru |archive-url=https://web.archive.org/web/20110605015707/http://www.aviation.ru/Tu/ |access-date=13 October 2021|archive-date=2011-06-05 }} (proposed)
  • Tupolev Tu-125 (proposed)
  • Tupolev Tu-135{{cite web |title=NK-6 |url=http://www.airbase.ru/alpha/rus/n/nk/6/ |website=airbase.ru |access-date=13 October 2021}} (proposed)

Specifications (NK-6)

{{jetspecs

|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=23, 24, 73}}

|type=Two-spool low-bypass afterburning turbofan

|length={{cvt|4810|mm}}

|diameter={{cvt|1750|mm}}

|weight={{cvt|3200|kg}}

|compressor=4-stage LP, 6-stage HP

|combustion=Annular multi-nozzle combustion chamber

|turbine=1-stage HP, 2-stage LP

|fueltype=

|oilsystem=

|power=

|thrust=

  • {{cvt|216|kN|lbf}} at takeoff
  • {{cvt|196.2|kN|lbf}} in cruise with afterburner
  • {{cvt|34.3|kN|lbf}} in cruise without afterburner

|compression=13.4 at takeoff

|bypass=1.79

|aircon={{cvt|343|kg/s|lb/s}}

|turbinetemp={{cvt|1400|K}}

|fuelcon=

|specfuelcon=

  • 183.6 kg/(kN⋅h) at takeoff
  • 200 kg/(kN⋅h) in cruise with afterburner
  • 87.7 kg/(kN⋅h) in cruise without afterburner

|power/weight=

|thrust/weight=

}}

See also

{{aircontent

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|related=

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References