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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

  RS-27 - Specifications
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Engine Performance

RS-27A
Propellant Combination
     Oxidizer
     Fuel
Liquid Oxygen (LOX)
Kerosene (RP)
Engine Cycle: Gas Generator
Average Thrust: 200,000 lb SL / 244,100 lb vac
889.6 kN SL / 1,085.8 kN vac
Chamber Pressure: (Pc) 702 psia
Mixture Ratio: 2.24 : 1
Isp: 254.2 sec SL
301.7 sec vac
Nozzle Area Ratio: 12 : 1
Gimbal Capability: No
Engine Mass: 2,528 lb
1,146 kg
Engine Thrust to Weight 96.6
Mixture Ratio Control: ---
Throttle Range: (% Pc) 100% (only)
Restart Capability: No
Engine Size:
     Length / Diameter
12.4 ft / 5.6 ft
3.8 m / 1.7 m
Flight Status Flight Qualified
Launch Vehicles: Delta II and Delta III First Stage

* Engine performance from Boeing Delta II and Delta III Reference Data Sheets and Boeing Web Site.


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