[Illustration: 85. Thrust chambers of the F-1 rocket engine on the
manufacturing line.]
Five F-1 engines powered the first stage of the Saturn 5 launch vehicle
that launched the manned Apollo spacecraft to the Moon. These engines
developed a total thrust of 3.5 million kilograms (7.6 million pounds).
They burn liquid oxygen and a form of kerosene at a rate of 13,475
liters (3560 gallons) per second.
The propellants are supplied to the thrust chambers by turbopumps driven
by gas generators that use a fuel-rich mixture ratio of the same
propellants used in the engine.
The F-l was developed and produced by Rocketdyne, a division of Rockwell
International, under the technical direction of the National Aeronautics
and Space Administration, Marshall Space Flight Center, Huntsville.
Alabama.
The engine on exhibit is from the National Aeronautics and Space
Administration.
Function Cluster of five providing 3.4 million kg. (7.5
million lb.) of thrust for Saturn 5 first stage
Thrust 690,000 kg. (1,522,000 lb.)
Propellants Kerosene (fuel) and liquid oxygen (oxidizer)
Length 5.8 m. (19 ft.) with nozzle extension
Diameter 3.8 m. (12 ft., 4. in.) with nozzle extension
[Illustration: 86. The first Apollo/Saturn 5 space vehicle on its
way to the launch pad.]