i have a showtime 50 and i would like robart hing point hinge's in it but i dont have the extra money to spend on them the last of my money is going towards CA,epoxy and an on/off switch for it,so would the CA hinge's be good enough to do 3-D?i dont want anything coming loose in air or anytime soon i would like this plane to last year's so thats why i asking if the CA type hinges that come with it will hold up?Thanx.

they'de be just fine.

ok ty

Most the 1.20 extreme 3D planes use CA hinges, and some even bigger than that. My buddy has a Giant UCanDo with CA hinges.

They will last fine if installed correctly. Have you installed them before?

David

CA hinges are pretty good - provided care is taken installing them.
Use the good flexible CA, drill pilot holes to help the CA wick into the hinge, if the instructions say use 6 drops of CA - don't believe it - use more.
there is a thread on RCU about the correct way to install them - follow it.

Above all
inspect them regulary and if you have a doubt about them - replace them - it is easy to do.

Thanx guy's that's good new's...iv watched my dad install the before but ill probable get him to stand beside me to make sure i do it right,cause i wanna learn how to do it myself so i aint always buggin him. the slots are precut on all area's 4 on each wing 3 on each elevader and 3 on the rudder.that should be fine?

i use them like its cool...

You'll be fine with that set up and number for your hinges. I've been using them for years and they are pretty easy and forgiving. On anything between a glider and a 120 size plane I wouldn't use anything else.

thanx prop chef.sound's like there really reliable.

EXTRA:

Be sure to run a center line on each side of the hinge with color crayon. The wax keeps the center flexable. Six drops of CA is more than enough, thats 6 drops on each surface and each side. Do a simple trial on a piece of scrap, and then argue if you must. Its usually the installer that fails, not the hinge. Clean away the excess CA with a paper towel or Q-tip on each hinge as you go. Dont want excess CA in the hinge area, will crack. ENJOY

Excelent idea on the crayon there rmenke.
I've learnt a new tip today.

I agree with you on the 6 drops per surface per side. (24 drops total per hinge). It's just that I've seen some instructions where it is written to use 6 drops and it reads as if it is 6 drops in total. That was in an ARF that had some bad publicity in these forums a while back about the poor quality of the CA hinges. I often wonder if the instructions were the cause because I had that same ARF and never had a problem.

rmenke thanx for the tip sound's like a good idea.and ill just get my dad to do it and ill do 1 or 2 that way i know for sure it's done right no messin up.

B&B Specialties in my opinion offers the best CA hinges for planes up to 40% (that do not require point hinges). Cheap too.
I've seen 40% gassers flown by Sean McMurtry with these hinges so I know they really hold up in big planes.
I recently broke some hinges with my 40cc gasser and replaced them all with the B&B hinges. Even barn door rudders stay on the stab with these hinges.
Along with the great tips shared here by others ,, another tip is sealing your control surface gaps. I use a clear vinyl tape made by 3M but many seal their gaps with clear monocote. The tape may get a bit dirty over time if you fly from a grass or dirt field but it's saved the day many times when I busted a hinge . In fact I never knew they busted until the end of the day thanks to the gap sealer. Apply it to the bottom of the gaps by extending the surface to it's maximum rate and running the seal between the surface and the trailing edges. Even better ,,, disconnect the linkages and work them several times back and forth to loosen up everything before hooking up your servo links. Easier on the servos for sure.

Maybe good quaility ones are ok, but the ones in my first Funtana 40 (FX91 powered) failed (left aileron in a inverted flat spin during recovery) with 190 flights with 3D throws, I pulled on the other ail and after one popped in the center the others followed easily, I'm going to replace them when my current Funtana gets to 100 flights. The Funtana ailerons are half the wing and is flown in a stressfull manner and may have contributed to the failure. It they wern't such a pain I would change them now but they fit in blocks and have to go in the original locations.