dsc77089.jpg

Overall view of forward end of the No. 1 side of the F-1 engine.

The vertical pipe at the far left is the LOX high-pressure duct; the U-shaped pipe at center is the fuel high-pressure duct. Along the top right is the heat exchanger. The bulbous silver object nestled in between the fuel high-pressure duct and the heat exchanger is the gas generator combustion chamber.

Also visible, in between the LOX and fuel ducts and reaching over the top of the engine, are the thermal insulation brackets.