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Detail of the gas generator injector assembly.

The two hexagonal plugs are mounted in the gas generator igniter ports.

During engine startup, propellants would enter the the combustor through the gas generator's injector. Pyrotechnic igniters mounted on these bosses would initiate combustion.

Also see my photos of the Rocket Center's F-1 rocket engine gas generator injector display.

 
F-1 Engine F-4028 (Outdoors) at U.S. Space & Rocket Center
Time picture taken Sun Jan 13 11:16:46 2013
Location picture taken Rocket Park
U.S. Space & Rocket Center
Huntsville, AL
Prev heroicrelics.org
U.S. Space & Rocket Center Site Index
F-1 Engine F-4028 (Outdoors) Gallery
Next