Skip to content
79,433 pages · 13,741 images · since 1994 Browse A–Z Today in space history
Encyclopedia Astronautica The full story of spaceflight
Encyclopedia entry

Saturn IVB (S-IB)

Stage · USA

Original archive entry. The text, images and links below are kept as they were written.

LOx/LH2 propellant rocket stage. Saturn IB version of S-IVB stage. Due to lower payload, 300 kg saving in structure compared to Saturn V version. Due to deletion of restart requirement, 700 kg saving in propulsion system (primarily reduction in helium for restart).

Country
USA
Engines
J-2
Propellants
Lox/LH2