ORIGINAL: agexpert
I have blown-off the following airplane parts in flight due to failure of CA hinges:
1) Left aileron - SIG Mayhem
2) Rudder - SIG Mayhem
3) Elevator - H-9 Super Stick.40
4) Right Elelvator half - H-9 Showtime 4D .90
5) Left Elevator half - H-9 Showtime 4D .90
So, what do you think my opinion of CA hinges is? .....they suck, aren't worth a darn and frankly should be banned for safety reasons alone. (Mind you they work fine for trainers and planes with minimal amounts of throw. I just learned the hard-way that they are not intended for high stress applications).
If you insist on using CA hinges, get the Radio South CA hinges. They are used in Giant sacle planes to 100CC. I like pinned hinges for GS and Robart hinge points for glow planes. If the surface is too small for a good installation of either of those, get the Radio South CA hinges...they are the best CA hinges made.
Not trying to start a wizzing contest here so please don't take it as offensive. CA type hinges
When Properly Installed are second to none. I've used them on everything from a 20mph trainer to a 200+ mph jet and even my 1/4 scale gasser (has some hellashious deflection) with excellent results. i did have some breakage in the early days when i thought you had to soak them with the thin till they refused to hold anymore, but when i changed my installation method I've not had a single breakage or failure of one in well over 10 yrs. the drilling of the 1/16" hole in the center of the surfaces to be hinged is a necessity on large scale planes and fast planes and is an added safety feature on even trainers. the trick is to center the hinge, and put 3-4 drops of thin on both sides (this is for a 1"x3/4" hinge) and that's it, don't put any more on it. when done right (not crocked sideways in the slots) you let the glue dry for about 5-10 min and then flex it a few times and then the weight of the control surface will deflect the hinge they are so free to move.
kc