Saturn IB - S-IVB-200 Stage

S-IVB-200 Stage

The S-IVB was built by the Douglas Aircraft Company at Huntington Beach, California. The S-IVB-200 model was similar to the S-IVB-500 third stage used on the Saturn V, with the exception of the interstage adapter, smaller auxiliary propulsion control modules, and lack of on-orbit engine restart capability. It was powered by a single J-2 engine. The propellant and oxidizer tanks shared a common bulkhead, which saved about ten tons of weight and reduced vehicle length over ten feet.

• Height: 58.42 ft (17.81 m)
• Diameter: 21.67 ft (6.61 m)
• Engine: single J-2
• Thrust: 200,000 lbf (890 kN)
• Fuel: Liquid hydrogen (LH2) 64,000 US gal (242 m3)
• Oxidizer: Liquid oxygen (LOX) 20,000 US gal (76 m3)
• Burn time: approx. 7 min
• Burnout altitude (for Saturn IB): orbit