S-IV: Difference between revisions
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[[Category:Apollo program]] |
[[Category:Apollo program]] |
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[[Category:Rocket stages]] |
[[Category:Rocket stages]] |
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[[bg:S-IV]] |
Revision as of 07:34, 13 March 2013
![]() Schematics of the S-IV | |
Manufacturer | Douglas Aircraft Company |
---|---|
Country of origin | United States |
Used on | Saturn I (stage 2) |
General characteristics | |
Height | 12.19 m (40 ft) |
Diameter | 5.49 m (18 ft) |
S-IV | |
Powered by | 6 RL-10 engines |
Maximum thrust | 400 kN |
Burn time | ~410 seconds |
Propellant | LOX/LH2 |
The S-IV was the second stage of the Saturn I, a rocket-powered launch vehicle used by NASA for early flights in the Apollo program.
The S-IV was manufactured by the Douglas Aircraft Company and later modified by them to the S-IVB, a similar but distinct stage used on the Saturn IB and Saturn V rockets.[1]
The S-IV stage was a large LOX/LH2-fueled rocket stage used for the early test flights of the Saturn I rocket. It formed the second stage of the Saturn I and was powered by a cluster of six RL-10A-3 engines. Each one of the engines supplied 66.7 kilonewtons (15,000 lbf) of thrust for a total of about 400 kilonewtons (90,000 lbf). The cryogenic LH2 (liquid hydrogen) and LOX (liquid oxygen) tanks were separated by a common bulkhead. The forward bulkhead of the LOX tank formed the aft bulkhead of the LH2 tank. This saved about ten tons of structural weight.[2][3]
See also
References
- ^ Bilstein 1999, p. 157
- ^ Bilstein 1999, pp. 166-168
- ^ Apollo Summary Report 1975, p. 187
- Bilstein, Roger E. (1999). "6". Stages to Saturn: A Technological History of the Apollo/Saturn Launch. DIANE Publishing. Retrieved 2010-05-04.
- NASA (1975). "Apollo Program Summary Report (Large file)" (PDF).
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