CA Hinging with Covering and ARF Controls Improvement
02-18-2002, 03:30 AM
#1
Thread Starter
CA Hinging with Covering and ARF Controls Improvement
CA Hinging can be a pain or can be as painless as possible.
Numerous people worry about whether or not the CA hinges will fail.
Here is a sure way that not only insures your hinges, but keeps
fuel from getting into open slots and weakening your joints.
Just as a sample I took a couple pieces of 3/16" Balsa:
Numerous people worry about whether or not the CA hinges will fail.
Here is a sure way that not only insures your hinges, but keeps
fuel from getting into open slots and weakening your joints.
Just as a sample I took a couple pieces of 3/16" Balsa:
02-18-2002, 03:36 AM
#5
Thread Starter
CA Hinging with Covering and ARF Controls Improvement
4. Sand a 45 deg bevel on both side of each surface. Rounding is ok as well.
5. Refit the CA Hinges in place and insert a T Pin through the Hinges as
alignment and equal distance can be maintained throught the surface.
Remove the Pins and apply thin CA approx 2-3 drops to each let it saturate
wait about 10 sec and do it again. Let Dry about 5 Min and touch sand
the surface to remove any high points caused by the CA.
5. Refit the CA Hinges in place and insert a T Pin through the Hinges as
alignment and equal distance can be maintained throught the surface.
Remove the Pins and apply thin CA approx 2-3 drops to each let it saturate
wait about 10 sec and do it again. Let Dry about 5 Min and touch sand
the surface to remove any high points caused by the CA.
02-18-2002, 03:37 AM
#6
Thread Starter
CA Hinging with Covering and ARF Controls Improvement
6. Now take your covering starting at the leading edge seal normally
as you would a wing, stab etc. But stop at the 45 degree bevel and
seal the first edge. Taking your Iron seal the inside of the bevel
all the way to the hinges. Repeat backawards while maintaining a down
force opening the hinge point. This will now give you a Sealed hinge area.
as you would a wing, stab etc. But stop at the 45 degree bevel and
seal the first edge. Taking your Iron seal the inside of the bevel
all the way to the hinges. Repeat backawards while maintaining a down
force opening the hinge point. This will now give you a Sealed hinge area.
02-18-2002, 03:38 AM
#7
Thread Starter
CA Hinging with Covering and ARF Controls Improvement
7. Finish sealing the rest of the surface and check for deflection.
Deflection should be nearly 90 Deg.
8. Your Now finished with the hinge and you have accomplished a Clean
Surface and basically a Double hinge enviroment. If the Hinge broke you
would never know it as your control surface/ covering is also a hinge.
9. Other benefits is your aircrafts controls will be alot more responsive
as there is no airgaps.
Deflection should be nearly 90 Deg.
8. Your Now finished with the hinge and you have accomplished a Clean
Surface and basically a Double hinge enviroment. If the Hinge broke you
would never know it as your control surface/ covering is also a hinge.
9. Other benefits is your aircrafts controls will be alot more responsive
as there is no airgaps.
02-19-2002, 08:27 PM
#9
Thread Starter
CA Hinging with Covering and ARF Controls Improvement
Your welcome
Just another method I learned years ago that gives you a great deal as piece of mind. Also helps with cleaning control surfaces so as to not flutter.
Just another method I learned years ago that gives you a great deal as piece of mind. Also helps with cleaning control surfaces so as to not flutter.
02-19-2002, 11:09 PM
#11
Thread Starter
CA Hinging with Covering and ARF Controls Improvement
I should have mentioned that this trick is very easy to do with ARF's Get a roll of transparent Ulracoat, cut a strip approx 2" wide and as long as the control surface you want to seal ie. aileron. Take Acetone and wipe clean the complete area so no oil or fingerprint residue is present. Now lay the piece of Ultra coat and seal it the same way as I described above.
You'll be amazed at the performance increase your controls have when there sealed.
You'll be amazed at the performance increase your controls have when there sealed.
