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The front gear door, which covers the strut, will
be attached when the landing gear is finally
mounted. So please disregard this step for now.
The two main doors for the wheel wells are going
to be attached next.
Determine the hinge position according to the
photos and create a slot in the wheel bay edge
approx 5 mm long and 3 mm wide at every hinge
point. Sand the inside of the gear doors
in the hinge area and tack the hinges in
place with a drop of CA. Make sure
that the position of the hinges match
the slots. Use a 2mm steel pin to align
both hinges per door. The hinge pin
must be at least 4 mm away from the
door edge (see dimension on photo) to
enable the door to open fully.
Create two 50 mm long hinge pins
from the 2mm steel wire, bend one end 90 deg.
Cut 2 plastic tubes per hinge, approx. 20 mm
long, and slide them on the hinge pin. Assemble
hinge pins and plastic tubes into the hinges. Trial
fit the doors with the assembled hinges into the
wheel opening. You will realize that the doors
(laminated carbon sheet) are thinner than the
sandwich material of the wing. To create the
correct hinge geometry you must remove the
sandwich foam around the white plastic tubes, so
that the gear door surface and wing skin are on
the same level.
Once all fits nicely, glue the white tubes with a
drop of 5 minute epoxy into the wing. Use wide
masking tape to hold the gear door in place while
the glue is setting. After the glue has set, take off
the masking tape and check movement. Glue little
recessed tabs from 0.8mm plywood on the rear
edge and front edge of the wheel bay cutout for
the gear door to rest against when closed. The
rear resting lip should not be in the exact center
of the cutout, because it could fowl interfere the
wheel.
After everything works smoothly, you can apply
nice epoxy fillets to every glue joint, as some
joints have been only tack-glued during the
assembly process.
Page 10
Instruction Manual F4U-1D Corsair
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