Saturn IV

Subtopics

• Nova A-3 LOx/LH2 propellant rocket stage. .
• Nova B-3 LOx/LH2 propellant rocket stage. .
• Saturn IVB LOx/LH2 propellant rocket stage. Configuration as flown on Saturn V.
• Saturn IVB C-3B LOx/LH2 propellant rocket stage. Final common third stage design for Saturn C-3B (November 1961).
• Saturn IVB C-5A LOx/LH2 propellant rocket stage. Final common third stage design for Saturn C-4 and C-5 (November 1961). Developed into Saturn V second stage. After development started, decision taken to boost performance by increasing diameter to 6.61 m and increasing propellant load.
• Saturn S-IVC LOx/LH2 propellant rocket stage. .
• Saturn SA-5 Vehicle evaluation, instrumented second stage satellite operated by NASA, USA. Launched 1964.
• Saturn SA-6, 7 Vehicle evaluation, instrumented second stage satellite operated by NASA, USA. Launched 1964.
• Saturn IVB-A LOx/LH2 propellant rocket stage. Douglas Studies, 1965: S-IVB with 215k lbf J-1 (actual final model had 230k J-1).
• Saturn MS-IVB-1 LOx/LH2 propellant rocket stage. Marshall studies, 1965: S-IVB structurally strengthened to handle larger payloads, otherwise unchanged.
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  Saturn MS-IVB-2 LOx/LH2 propellant rocket stage. Douglas Studies, 1965: S-IVB with 315 k high pressure 3000 psia engine, 350,000 pounds propellant.
• Saturn MS-IVB-x LOx/LH2 propellant rocket stage. Marshall studies, 1965: S-IVB structurally strengthened to handle larger payloads, otherwise unchanged.
• Apollo 203 (Saturn SA-203) Instrumented second stage satellite operated by NASA, USA. Launched 1966.
• SASSTO stage LOx/LH2 propellant rocket stage. Recoverable S-IVB with plug nozzle engine. 36 x plug-nozzle engines (102 atm chamber pressure, 6:1 mixture ratio).
• Saturn IVB (S-IB) 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).
• Saturn MS-IVB-1A LOx/LH2 propellant rocket stage. S-IVB with 16.5 foot stretch, 350,000 pounds propellant, standard J-2 engine.
• Saturn MS-IVB-3B LOx/LH2 propellant rocket stage. S-IVB with 16.5 foot stretch, 350,000 pounds propellant, 1 400,000 pound thrust toroidal engine.
• Saturn MS-IVB-4(S)B LOx/LH2 propellant rocket stage. Standard S-IVB but with structural strength increased from 78% to 217% depending on station, resulting in 11.8% increase in empty weight.
• Saturn IVB (S-V) LOx/LH2 propellant rocket stage. Saturn V version of S-IVB stage for use with upper stage.