Question: I want to increase the throws of my control surfaces. This requires increasing the hinge line gap. Can I do this?

Answer: Yes you can increase the hinge line gap to allow more movement of the control surfaces but you should NOT exceed the maximum recommended "throws" for your particular model.

Increasing the hinge line gap &/or exceeding the maximum recommended throws can lead to unpredictable results &/or control surface flutter and may result in loss of control and a crash.

If you are sure that you want to do this here is what to do:

1. Cut the hinges (only the minimum required, don't cut hinges unless necessary) using a sharp #11 blade.
2. Do not attempt to pull the hinge stubs out, they are glued and possibly pinned as well. Pulling the stubs out will make a heck of a mess. Trim the stubs down flush and leave the rest in place.
3. Rehinge about 1/2" (12mm) over from the original hinge location.
4. Use playing cards or other thin shim material to set the hinge gap.
5. Apply hinge adhesive (Pacer Hinge Glue is recommended) and insert the hinges. Hold the control surface in place using low tack tape.
6. Let the adhesive dry.
7. Test the throws. Ensure the surface moves the way you want it to and that it does not exceed the maximum recommended throw.
8. Pin at least the inboard and outboard hinges to ensure that the control surface cannot come loose even if the hinge glue lets go.
9. Tug Tug Tug on the control surface. Make sure it is secure.
10. Do Not Fly until you are sure that the control surface is securely attached and working properly.