Encyclopedia Astronautica
Saturn IB


Lox/Kerosene propellant rocket stage. Loaded/empty mass 448,648/41,594 kg. Thrust 8,241.76 kN. Vacuum specific impulse 296 seconds. Configuration as flown, Saturn IB.

Cost $ : 43.500 million. No Engines: 8.

Status: Study 1965.
Gross mass: 448,648 kg (989,099 lb).
Unfuelled mass: 41,594 kg (91,699 lb).
Height: 24.48 m (80.31 ft).
Diameter: 6.52 m (21.39 ft).
Span: 6.52 m (21.39 ft).
Thrust: 8,241.76 kN (1,852,822 lbf).
Specific impulse: 296 s.
Specific impulse sea level: 262 s.
Burn time: 155 s.
Number: 46 .

More... - Chronology...


Associated Countries
Associated Engines
  • H-1b Rocketdyne Lox/Kerosene rocket engine. 1030.2 kN. Isp=296s. First flight 1966. More...

Associated Launch Vehicles
  • Saturn B-1 American orbital launch vehicle. Most powerful version of Saturn I considered. New low energy second stage with four H-1 engines, S-IV third stage, Centaur fourth stage. Masses, payload estimated. More...
  • Saturn A-2 American orbital launch vehicle. More powerful version of Saturn I with low energy second stage consisting of cluster of four IRBM motors and tankage, Centaur third stage. Masses, payload estimated. More...
  • Saturn IB-C American orbital launch vehicle. Douglas Studies, 1965: 4 Minuteman strap-ons; standard S-IB, S-IVB stages. More...
  • Saturn IB-CE American orbital launch vehicle. Douglas Studies, 1965: Standard Saturn IB with Centaur upper stage. More...
  • Saturn IB-D American orbital launch vehicle. Douglas Studies, 1965: Standard Saturn IB with Titan UA1205 5-segment strap-on motors. More...
  • Saturn IB American orbital launch vehicle. Improved Saturn I, with uprated first stage and Saturn IVB second stage (common with Saturn V) replacing Saturn IV. Used for earth orbit flight tests of Apollo CSM and LM. More...
  • Uprated Saturn I American orbital launch vehicle. Initial version of Saturn IB with old-design Saturn IB first stage. More...

Associated Propellants
  • Lox/Kerosene Liquid oxygen was the earliest, cheapest, safest, and eventually the preferred oxidiser for large space launchers. Its main drawback is that it is moderately cryogenic, and therefore not suitable for military uses where storage of the fuelled missile and quick launch are required. In January 1953 Rocketdyne commenced the REAP program to develop a number of improvements to the engines being developed for the Navaho and Atlas missiles. Among these was development of a special grade of kerosene suitable for rocket engines. Prior to that any number of rocket propellants derived from petroleum had been used. Goddard had begun with gasoline, and there were experimental engines powered by kerosene, diesel oil, paint thinner, or jet fuel kerosene JP-4 or JP-5. The wide variance in physical properties among fuels of the same class led to the identification of narrow-range petroleum fractions, embodied in 1954 in the standard US kerosene rocket fuel RP-1, covered by Military Specification MIL-R-25576. In Russia, similar specifications were developed for kerosene under the specifications T-1 and RG-1. The Russians also developed a compound of unknown formulation in the 1980's known as 'Sintin', or synthetic kerosene. More...

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