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Make sure the bent hinge is able to go perpendicular to the edge (see picture).
When the glue is dry, do the same thing with the mating surface, glue the hinge
legs into the holes provided. Keep the surfaces as close together as possible to
minimize gaps. When completed it’s a good idea to seal the hinge gaps by ironing
a piece of Ultracoat covering material into the groove between the surfaces.
Repeat this on both elevators and both ailerons. For the rudder you may wish to
wait until later to do the final installation of the rudder, it makes it easier to handle
the airplane.
To make the rudder removable, it is possible to remove the hinge pin from each
hinge (grind off the recessed end and push the pivot out) and one or two piece of
wire as the pivot on all the hinges. Use the largest wire that will fit through the
hinge holes. Then to remove the rudder you just remove the wire, but be sure the
wire can’t fall out in flight. I have used a very small wheel collar to retain the
hinge wire.
