Here's the remainder of the air system plumbing inside the fuse. There are 5 air connections for each wing - gear up, gear down, wheel brakes, inner pylon drop, and outer pylon drop. The retractable landing lights are air operated as are the main and nose gear doors. There is a connection for gear air into the aft fuselage for the skid retract cylinder.

In all, there are over 25 air "T" fittings in the fuselage for the air system plumbing. To prevent leaks, each and every air connection is safety wired with 0.011" stainless steel safety wire...

The unconnected lines are for fill and will eventually be connected to 5 air gauges and BVM fill valves...