Turboprop NK-4 engine © Konstantinos Panitsidis

Photo from the personal collection of Konstantinos Panitsidis

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Fuel -
Oil -
Propeller shaft power, take-off power rating 4.000 h.p.
Specific fuel consumption, take-off power rating 0,245 kg/hp. h
Propeller shaft power, cruise power 2.300 h.p. (H=8.000 m, M=0,57)
Specific fuel consumption, cruise power 0,207 kg/hp. h
Pressure ratio, take-take-off power rating 7,7
Temperature of the gas at the turbine intake, take-off power rating 1.170 K
Air flow rate, take-off power rating 18,7 kg/sec
Compressor rotation frequency low-pressure, take-off power rating -
Diameter 1050 mm
Height -
Width -
Lenght 2.770 mm
Weight 970 kg
Specified service life -