Rocketdyne F-1
F-1 engine on display at Kennedy Space Center | |
| Country of origin | United States |
|---|---|
| First flight | November 9, 1967 (Apollo 4) |
| Last flight | May 14, 1973 (Skylab 1) |
| Designer | Rocketdyne |
| Manufacturer | Rocketdyne |
| Associated LV | Saturn V, Saturn C-3, Saturn C-4, Saturn C-8 |
| Liquid-fuel engine | |
| Propellant | LOX / RP-1 |
| Mixture ratio | 2.27:1 (69% LOX, 31% RP-1) |
| Cycle | Gas-generator |
| Performance | |
| Thrust, vacuum | 7,770 kN (1,746,000 lbf) |
| Thrust, sea-level | 6,770 kN (1,522,000 lbf) |
| Thrust-to-weight ratio | 94.1:1 |
| Chamber pressure | 70 bar (1,015 psi; 7 MPa) |
| Specific impulse, vacuum | 304 s (2.98 km/s) |
| Specific impulse, sea-level | 263 s (2.58 km/s) |
| Mass flow |
|
| Burn time | 150 to 163 seconds |
| Dimensions | |
| Length | 5.6 m (18.5 ft) |
| Diameter | 3.7 m (12.2 ft) |
| Dry mass | 8,400 kg (18,500 lb) |
| Used in | |
| S-IC | |
The F-1 is a rocket engine developed by Rocketdyne. The engine uses a gas-generator cycle developed in the United States in the late 1950s and was used in the Saturn V rocket in the 1960s and early 1970s. Five F-1 engines were used in the S-IC first stage of each Saturn V, which served as the main launch vehicle of the Apollo program. The F-1 remains the most powerful single combustion chamber liquid-propellant rocket engine ever developed.