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Overall walk-around of the high-pressure ducts.

Picture 4 of 4.

The bottom-and left-most duct (whose end does not have a plastic closure) is the No. 1 LOX high-pressure duct; the front end of the duct attaches to the No. 1 main LOX valve and the back (partially obscured) end to the LOX turbopump.

The duct whose left end (with plastic wrap over the opening) rests on the No. 1 LOX duct and whose right end sticks up behind the interface panel is the No. 1 fuel high-pressure duct; the right-hand end of the duct as it's laying attaches to the fuel turbopump and the left end to the No. 1 main fuel valve.

Refer to the No. 1 side of the forward end of the engine to see these two ducts in their more familiar, installed location.

The tan-colored duct whose right-hand opening has no plastic wrap still covering its opening and whose left end is obscured by the vertical duct end with the plastic closure is the No. 2 LOX high-pressure duct; the visible end attaches to the No. 2 main LOX valve and the obscured end attaches to the LOX turbopump.

The No. 2 fuel high-pressure duct is the duct whose right end has a plastic closure and is just left of the interface panel (under the No. 2 LOX duct), whose body disappears into the pile, and whose left end sticks nearly straight up out of the pile and still has the plastic closure covering its opening. The right end attaches to the No. 2 main fuel valve and the left-hand (straight up and down) end to the fuel turbopump.

Refer to the No. 2 side of the forward end of the engine to see these two ducts in their more familiar, installed location.