ORIGINAL: stashu
I am building the H9 XT 40 plane and I have a question about gluing the hinges on the ailerons/wings. It say to install the hinges using a T-pin to make sure it’s halfway in the slot and then remove the pins and while holding the aileron and wing together, then apply CA to both the top and bottom joint areas. Would it be better to first glue the wing hinges in place while holding the wing upright “to let the CA wick into the slot and hinge. Let dry, then put the aileron on and glue them on while holding the aeilon upright. I just think that more CA will wick into the slot my way then just CA’ing the hinges all at once.
Thanks in advance--------------Stashu
Absolutely not. If you try it your way you are going to wind up with and aileron (or other control surface) that you can't attach to the plane any longer. As soon as you apply CA to the hinge it wicks to the ENTIRE hinge and seals the fibers. When you apply the aileron and put CA on it the adhesive can no longer attach to the fibers of the hinge. This will cause the aileron to not adhere to the hinge, which can be very bad in flight because the aileron will pull off in flight. You need to think of the CA hinges as a "one time only" material. You only have one chance to apply CA to them.
You need to follow the instructions completely when installing the hinges. Otherwise you're going to wind up with the plane in a trash bag. Do exactly as they instruct you to do.
1. Install a pin on the halfway mark in the hinge.
2. Insert the hinge in the wing all the way to the pin
3. Install the aileron on the hinges and push all the way to the pins
4. Flex the aileron away from you.
5. Apply CA to all of the hinges and wait for a few minutes
6. Turn the wing over and flex the aileron away from you
7. Apply CA to all of the hinges and wait for a few minutes
8. Now flex the aileron back and forth several time to flex the hinges.
9. Pull on the aileron to ensure that it is firmly attached to the wing.
Doing it any other way will result in disaster
Hope this helps
Ken