I see CA glues advertised at tower hobby etc. and all these epoxy's.... are they so much better than wood glues? I know wood glues aren't always waterproof but how many planes are flying underwater?

Also ... what about polyurethane glues like Gorilla glue? I'm a carpenter and that stuff is like jbweld

The only thing that makes CA better than wood glue is it's "instant set" properties. You can build quicker with it, but in actuality CA is pretty brittle when it cures, so in that respect wood glue is better.

Epoxy, especially the stuff that takes longer to set like 30 minute, is quite a bit stronger than wood glue I believe. You only need it on things like joining the wing halves, and installing landing gear blocks and firewall; the stuff where you want added stregth.
Dennis-

Not to mention CA doesn't sand very well.
You can't glue you eyeballs together with wood glue.
Wood glue is infinitely less expensive.
Polyurethane glues are great WHEN USED PROPERLY- read the health warnings on it, it's not harmless.
Wood glue is not as bad when the kids/dog/gramma get a hold of it!

Jetts

Tite Bond has a water proof wood glue and sets pretty fast. I think they build arf with it.

Most people end up using a combination of all the glues. I have a whole drawer full. Different epoxies, CAs and wood glues. They all have different purposes for different outcomes. All are stronger than the wood they are bonding. Just depends on the use. Epoxies are great for center sections, firewalls, gear blocks, putting on the tail, white glues make good balsa to balsa glue or I use it to double glue joints I have glued with CA. The CA is what I build with. I put just about everything together with CA and then use the others to hold it. Just a spot of CA on the ribs, then white glue to hold them and such. Just some examples.

The poly glues like Gorilla or ProBond are the best thing on the planet for working with foam. I use quite a bit of it. Like Flyboy, I have piles of different glues and differnet types of glues for differnet uses.

Another great glue that many folks don't know about is Goop. It's great on anything plastic, like cowls and windscreens, and coro. Also works great on woods.

I use CA, wood Glue, and 30-minute Epoxy. I'd tell you more, but right now my head is glued to the desk, and it's hard to type like this.

Ah, but which glue is your head glued to the desk with? I'll avoid that one

Thick to medium CA is fine to work with, but watch out for that oderless thin stuff. It seeps into everything without you knowing about it. My wife is still waiting for an explanation to why there were two holes shaped like feet cut out in the carpet, why the upholstery was ripped off the seat of my chair, and why I had this really bad rash and chaffing on my derriere and feet.

She also wasn't too pleased to find out I glued the cat to my workbench.

Of coarse she can't talk, she steals my CA to fill and repair her fingernails and I came home the other night to find the TV remote glued to her left thigh.