Diagram of the S-IB first stage of the Saturn IB rocket
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Manufacturer | Chrysler |
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Country of origin | USA |
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) |
Engine details | |
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. It was composed of nine propellant containers, eight fins, a thrust structure assembly, eight H-1 rocket engines, and many other components. The propellant containers consisted of eight Redstone tanks (four holding LOX and four holding RP-1) clustered around a Jupiter rocket tank containing LOX. The four outboard engines gimballed to steer the rocket in flight, which required a few more engine components. It burned for nearly 2.5 minutes before separating at an altitude of 42 miles (68 km).