Engineering:S-IB
 Diagram of the S-IB first stage of the Saturn IB rocket | |
| Manufacturer | Chrysler[1] |
|---|---|
| Country of origin | United States |
| Used on | Saturn IB (stage 1) |
| General characteristics | |
| Height | 25.5 m (84 ft) |
| Diameter | 6.6 m (22 ft) |
| Gross mass | 448,648 kg (989,100 lb) |
| Derived from | S-I |
| Launch history | |
| Status | Retired |
| Total launches | 9 |
| Successes (stage only) | 9 |
| First flight | February 26, 1966 |
| Last flight | July 15, 1975 |
| Engines | 8 H-1 engines |
| Thrust | 7.1 MN (1,600,000 lbf) |
| Specific impulse | 296 s (2.90 km/s) |
| Burn time | 155 seconds |
| Fuel | RP-1/LOX |
The S-IB stage was the first stage of the Saturn IB launch vehicle, which was used for Earth orbital missions.[2] It was an upgraded version of the S-I stage used on the earlier Saturn I rocket and was composed of nine propellant containers, eight fins, a thrust structure assembly, eight H-1 rocket engines, and many other components. It also contained the ODOP transponder. The propellant containers consisted of eight Redstone-derived tanks (four holding liquid oxygen (LOX) and four holding RP-1) clustered around a Jupiter rocket-derived tank containing LOX. The four outboard engines gimballed to steer the rocket in flight, which required a few more engine components. The S-IB burned for nearly 2.5 minutes before separating at an altitude of 42 miles (68 km).
Specifications
- Height: 80.17 ft (24.44 m)
- Diameter: 21.42 ft (6.53 m)
- Number of fins: 8
- Finspan: 39.42 ft (12.02 m)
- Engines: 8 Rocketdyne H-1
- Thrust: 1,600,000 lbf (7,100 kN)
- Fuel: RP-1 (Refined kerosene) 41,000 US gal (155 m3)
- Oxidizer: Liquid oxygen (LOX) 66,277 US gal (251 m3) nominal capacity including 1.5% ullage volume (43,284 US gal / 163 m3 in four outer tanks plus 22,993 US gal / 87 m3 in center tank[3])
- Burn time: 2.5 min
- Burnout altitude: 37 nmi (69 km)
References
- ↑ "Saturn IB History". http://www.spacelaunchreport.com/satstg2.html. Retrieved 2014-09-01.
- ↑ "Saturn IB". Encyclopedia Astronautica. http://www.astronautix.com/stages/saturnib.htm.
- ↑ NASA Marshall Spaceflight Center, Skylab Saturn IB Flight Manual (MSFC-MAN-206), 30 September 1972
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