20
Hangar 9 F4U-1D Corsair 50 ARF
5. Using a rotary tool and bit grind out a slot, avoid
cutting into the top sheeting. Check that there will be
adequate clearance for the pin when the retract is installed.
6. Remove the retract from the wing. Use the radio
system to cycle the retract to the down position. Place the
retract in the wing. Center the retract frame on the rails,
and make sure the retract motor is parallel to the rails. Use
a pencil to mark the location for the four mounting screws
through the retract frame and onto the rails.
7. Place a 5/64-inch (2mm) drill bit in the drill. Wrap a
piece of tape around the drill bit 3/4-inch (19mm) from the
end of the drill bit to prevent accidentally drilling through the
top of the wing.
8. Drill the holes in the landing gear rails for the
landing gear mounting screws.
9. Use a #2 Phillips screwdriver to thread a #4 x 3/4-
inch sheet metal screw into each of the four holes drilled in
the previous step, This will cut threads into the surrounding
wood. Remove the screw before proceeding to the next step.
