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Walk-around of the forward end of the engine, including the LOX dome and injector.

Picture 1 of 5.

Note the two elbows on either side of the central red-and-grey bracket. Both tapped gaseous hydrogen off from the injector: The upward-facing elbow provided GH2 for fuel tank pressurization. The downward-facing elbow provided GH2 to recharge the engine's start tank.

 
J-2 Engine Thrust Chamber J-2111 LOX dome and injector at Marshall Space Flight Center
Time picture taken Mon Sep 9 13:25:18 2013
Location picture taken Building 4205
Marshall Space Flight Center
Huntsville, AL
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