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Rocket Propellant Properties: lox lh2 ssme
Rocket propellant performance data — specific impulse, characteristic velocity, chamber conditions for bipropellant, solid, and monopropellant combinations
| propellant id | chamber pressure psia (psia) | chamber temp deg r (deg R) | chamber temp k (K) | cstar ft s (ft/s) | cstar m s (m/s) | expansion ratio (dimensionless) | fuel | isp vac s (s) | mixture ratio (dimensionless) | oxidizer | source method |
|---|---|---|---|---|---|---|---|---|---|---|---|
| lox lh2 ssme | 3,200 | 6,556 | 3,642 | 7,988 | 2,435 | 77.5 | LH2 | 453 | 6 | LOX | SSME delivered performance; Pc=3200 psia, epsilon=77.5:1, MR=6.0. Isp vac=453 s (delivered, ~97% of theoretical). C*=2435 m/s, Tc=3642 K from Astronautix/RPE9. |
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