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| 11D-57 - Specifications |
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Engine Performance
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11D-57 |
Propellant Combination:
Oxidizer
Fuel |
Liquid Oxygen (LOX)
Liquid Hydrogen (LH2) |
| Average Thrust: |
88,300 lb
392,050 N |
| Chamber Pressure: (Pc) |
1,600 psia
110 bar |
| Mixture Ratio: |
5.8 : 1 |
| Isp: |
456 sec |
| Nozzle Area Ratio: |
143 : 1 |
| Gimbal Capability: |
No
(tap-off for 290 lbf / 1,290 N roll-control thrusters) |
| Engine Mass: |
1,750 lb
794 kg |
| Engine Thrust to Weight: |
50.5 |
| Mixture Ratio Control: |
--- |
| Throttle Range: (% Pc) |
--- |
| Restart Capability: |
Yes
(Based on NK-31 restart capability) |
Engine Size:
Length / Diameter |
12.1 ft / 6.2 ft
3.7 m / 1.9 m |
| Flight Status: |
Flight Qualified (1977) |
| Launch Vehicle: |
Russian N-1M (upgraded) 3rd
(Block V-III) and 4th Stage (Block S) |
| Configuration: |
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