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The sign accompanying the engine. It reads

F-1

The F-1 engine has roots outside NASA: the huge booster came to the space agency in 1958 as part of the Air Force legacy. At that time no vehicle existed capable of using the F-1. 10 January 1962 NASA confirmed the Saturn V would have a first stage (S-IC) powered by five F-1 engines. The F-1 was a single-start, 1,500,000 lb fixed-thrust rocket system. The five-engine cluster used on the S-IC of the 363 ft Saturn V produced 7,500,000 lbs of thrust.

Thrust:	1,500,000 lb
Propellant:	Liquid Oxygen/RP-1 (kerosene)
Mixture Ratio:	2.27:1
Weight:	18,616 lb

On loan from MSFC/NASA

Developed by Rocketdyne Corp.