Model Tech P-5IB Mustang Old Crow User Manual page 9

Modellbau Lindinger GmbH
WarNINg Be careful not to get any machine oil or petroleum jelly on the gluing surfaces of the hinges or the epoxy won't stick
securely to the hinges.
q Remove the aileron from the wing panel and set it aside for now.
q After the epoxy sets up, pivot the aileron up and down several times to free up the hinges. If there is any excess dried epoxy on
any of the hinge pivot points, it can be removed by carefully using the tip of a modeling knife to cut or chip it away.
q Repeat the previous procedures to hinge the second aileron to the other wing panel. After the epoxy fully cures, pull gently on both
ailerons to ensure that the hinges hold securely.
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q When satisfied with the fit and alignment, remove the hinges from the
aileron, then apply a thin coat of machine oil or petroleum jelly to only the
pivot point of each of the three hinges.
IMporTaNT The machine oil or petroleum jelly will prevent excess epoxy
from gluing the hinges solid.
q Mix a small quantity of 5 minute epoxy and carefully glue each of the three
hinges into only the aileron for now. Make sure that each of the hinges is
centred and that the centreline of each hinge pivot point is even with the
leading edge of the aileron. Remove any excess epoxy, using a paper towel
and rubbing alcohol, and allow the epoxy to set up before proceeding.
q After the epoxy sets up, push the aileron and hinges into the corresponding
three hinge slots in the trailing edge of the matching wing panel, making sure
that the inboard edge of the aileron is even with the flap cutout in the wing
panel.
q Mark the outside edges of each of the three hinges onto the trailing edge
of the wing panel.
q Carefully cut a shallow bevel in the trailing edge of the wing panel, on
both the top and the bottom of each of the hinge slots, to recess the hinge
pivot points into.
pro TIp You may need to cut the bevels above the hinge slots through
the top of the wing panel, so that when the aileron is hinged, the top of
the aileron is flush with the top of the wing panel. Otherwise, the top of the
aileron will be higher than the top of the wing panel.
q Apply a thin coat of machine oil or petroleum jelly to only the pivot point
of each of the three hinges, then hinge the aileron to the wing panel, using 5
minute epoxy. Make sure that the leading edge of the aileron is pushed firmly
up against the trailing edge of the wing panel. There should be no more than
a 1/32" (.7mm) wide hinge gap and the inboard edge of the aileron should be
even with the flap cutout in the wing panel. Remove any excess epoxy, using a
paper towel and rubbing alcohol, and allow the epoxy to set up before proceeding.
Page 9
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