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Rocket Engines

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11D-513
11D-57
11D-58
Aerospike
Aestus
HM7B
LE-5
LE-7
MA-5
NK-31 / 39
NK-33 / 43
RD-120
RD-170
RD-180
RL-10
RL-60
RS-27
RS-68
RS-72
RS-76
SSME
Viking
Vulcain

  NK-33 and NK-43 - Specifications
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Engine Performance

NK-33
(AJ26-58,59)
NK-43
(AJ26-60)
Propellant Combination
     Oxidizer
     Fuel
Liquid Oxygen (LOX)
Rocket Propellant (RP)
Liquid Oxygen (LOX)
Rocket Propellant (RP)
Average Thrust: 339,000 lbf SL
1,505 kN SL
395,000 lbf
1,753.8 kN
Chamber Pressure: (Pc) 2109 psia
145 bar
2109 psia
145 bar
Mixture Ratio: 2.6 : 1 2.6 : 1
Isp: 297 sec SL
331 sec vac
346 sec
Nozzle Area Ratio: 27 : 1 80 : 1
Gimbal Capability: 6 degrees (w/ Aerojet modification) 6 degrees (w/ Aerojet modification)
Engine Mass: 2,725 lb
1,235 kg
3,250 lb
1,473 kg
Engine Thrust to Weight 125 121
Mixture Ratio Control: Yes (EMA) Yes (EMA)
Throttle Range: (% Pc) 55 - 104 % 55 - 104 %
Restart Capability: AJ26-58:  No
AJ26-59:  Yes
AJ26-60:  No
Engine Size:
     Length / Diameter
12.2  /  6.7  ft
3.7  /  2.0  m
16.3  /  8.2  ft
5.0  /  2.5  m
Flight Status Flight Qualified Flight Qualified
Launch Vehicles: Russian N-1 First Stage (30 engines)
Development - K-1 First Stage (3 engines)
Russian N-1 Second Stage (8 engines)
Development - K-1 Second Stage (1 engine)
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* Performance provided by GenCorp Aerojet.   The engine performance statistics listed on this page are representative numbers only.  Aerojet can not vouch for the complete accuracy of the data.


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