Joining carbon fibre tubes - dihedral !?
I'm building a lightwieght slowflyer - rudder / elevator, with a fair amount of dihedral and a very fragile undercambered wing.
To reinforce the wing without adding too much weight I got hold of some incredibly strong yet lightweight C/F tubes....3mm outside dia / 2mm inside diameter.
My question is - how to join the spars at the dihedral break (centre of the wing) I've thought about:
- Gluing a dowel inside and then gluing the dowel ends (no strength !?)
- Ditto with music wire bent to the angle and wrapped with something to fill the tubes
- Using bent music wire top and bottom and then binding with kevlar thread
The main problem of course is that I don't know what I am doing and have no experience with this material !
Would appreciate some help.
Thanks,
Nigel