The following article is taken from the AMA National Newsletter.
Please see bottom of page for contact information.
This article is by Fred Harvey.

HINGE INSTALLATION

If you use one-piece hinges, here is a tip that will keep you out of trouble. Draw a thin black line across the middle of the hinge. Cut slots in the wing and install the hinge just up to the marked line. When you press the aileron or elevator onto these hinges you will be able to tell if the hinge is being pushed further into the airframe or if it is actually being pushed into the control surface. If you can't keep the hinge from being pushed into the wing, stick a pin through the middle of the hinge. This will prevent the hinge from moving but not weaken the hinge at all.

from Vapor Tales
Fred Harvey, editor
307 N Brook Forest Rd
Derby KS 67037