NK-33 and NK-43
Type: Lower Stage Engine and Upper Stage Variant
Country of Origin: Soviet Union
Manufacturer: Kuznetsov Design Bureau
First Flight:
Status: Active
Propellant (O/F): Liquid Oxygen/Kerosene
Mixture Ratio (O/F by mass):
Cycle: Staged Combustion
Chambers: 1
Thrust (vac.): 1680 kN (NK-33)
Thrust (s.l.): 1510 kN (NK-33)
Throttle: 50% to 105%
ISP (vac.): 331 s (NK-33)
ISP (s.l.): 297 s (NK-33)
Chamber Pressure: 2151 psi
Nozzle Ratio:
Burn time:
Ignitions:
Mass: 1240 kg
Length: 3.7 m
Diameter: 2 m
Used in: N-1; Antares 100 series; Soyuz 2.1v
Links: