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View of the top of the nozzle extension.

The nozzle extension is double-walled, with cooler turbine exhaust gasses (cooler in comparison to the main exhaust) entering here. The inner wall is constructed of 23 rows of overlapping shingles. The turbine exhaust gasses vent through gaps in the shingles, providing film cooling for the inner the wall.

F-1 engine F-041 at the Air Zoo offers a view of the F-1 engine proper, the transition to the nozzle extension, and the full inner wall of shingles. I have a series of photos of F-1 engine F-114-2 at Stafford Air & Space which features a view into the top row. F-1 engine F-6045 is displayed at the U.S. Space and Rocket Center without a nozzle extension, allowing a view of the turbine exhaust manifold (which feeds into the nozzle extension).

The nozzle extension bolts to the engine via the holes in the silver flange.

Picture 2 of 2.

 
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Time picture taken Thu Jul 19 09:25:26 2012
Location picture taken Storage Room
Building 4205
Marshall Space Flight Center
Huntsville, AL
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