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The sign accompanying the J-2 engine. It reads (note that it mistakenly refers to the S-IVB stage as the S-IV stage)


J-2 Rocket Engine

The J-2 rocket engine was developed to power the S-II and S-IV stages of the Saturn V vehicle.

S-II stage

Had a cluster of five J-2 engines that had a combined thrust of 1,150,000 pounds.

Operated after the F-1 engine phase of the flight to lift the vehicle into Earth orbit.

S-IV stage A single J-2 engine powered the Apollo vehicle out of Earth orbit for the journey to the moon.

The J-2 development program began in 1960 with the first manned flight in 1968. The 152-engine production program was completed in 1970.

A major highlight of the engines' successful flight record came in July 1969. The J-2 engines powered stages of the Saturn V AS-506 for Earth-to-orbit and the translunar flight portions of Apollo 11, the first manned lunar landing mission with astronauts Neil Armstrong, Edwin Aldrin, and Michael Collins. Armstrong and Aldrin stepped on the Moon July 20, 1969.


Weight:   1.4 Tons (2,729 Pounds)
Specific Impulse:   425 seconds
Thrust:   230,00 Pounds


 
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Time picture taken Fri Jun 18 09:59:36 2004
Location picture taken Rocket Park
Visitor Center
Stennis Space Center, MS
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