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Old 12-08-2008, 06:35 AM
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CGRetired
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Default RE: CA hinges came loose.

This is one point that often gets overlooked. Never NEVER add CA again after you have applied it the first time. Once you add the 5 or so drops to each side of the CA hinge, do not add more after it sets up. Leave it alone.

I had a Tiger 60 as my second plane. After I hinged it with CA hinges, I thought it was a good thing "just to make sure" to add more CA to each hinge. After I did that, I was talking to the 'club pro' and he said that when doing CA hinges to never re-apply CA to the hinge... that will cause it to unbond or to cause the original bonding to become brittle and the force of the surface will cause the hinge to come undone. Sure enough, a couple months later, I noticed that one of the ailerons was loose so I checked it and several of the hinges came undone. I was lucky I caught it. I removed all of the hinged surfaces.. ailerons, rudder, elevator, and re-slotted everything and re-hinged using CA hinges again.

That was about 8 years ago, and that plane still flys today.

CGr.