S-III
The S-III (pronounced "ess three") was a proposed third stage of the early Saturn C designs for a five-stage Saturn launch vehicle. The Saturn C configurations were based on a "building block" approach, in which the upper stages would be test-flown before the intermediate stages. The S-III was to have been a LOX-Hydrogen fueled stage powered by two J-2 engines. The original Saturn C-2 design would have been a three- or four-stage launch vehicle using the S-I plus S-III plus S-IV stages plus, for some missions, S-V.
| Country of origin | United States |
|---|---|
| Used on | Saturn C-2 (stage 2) Saturn C-3 (stage 3) |
| General characteristics | |
| Diameter | 27 ft (8.2 m) |
| S-III | |
| Engines | 2 J-2 engine |
| Thrust | 400,000 lbf (1.8 MN) |
| Fuel | LOX/LH2 |
References
- Free return trajectory simulation, Robert A. Braeunig, August 2008
- Bilstein, Roger E. (1980). Stages to Saturn: A Technological History of the Apollo/Saturn Launch Vehicles. NASA History Series SP-4206. NASA.
- Stuhlinger, Ernst, et al., Astronautical Engineering and Science: From Peenemuende to Planetary Space, McGraw-Hill, New York, 1964.
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