Well, I still haven't maidened the Predator, as I haven't got wheels for it yet. But yesterday I picked up some foamboard for just $5.99 for an A1 sheet. In Aus, that's about as good as it gets (everything costs an 'arm and a leg' here ('pound of flesh' for a more widespread euphemism)).
Anyhow, big thanks to those who posted links to plans. I picked out the blu-p51 from:
http://www.rcgroups.com/forums/showthread.php?t=389720
I built the 30" one. I used a KFm-4 airfoil with about 2 degrees of dihedral. I don't think I need a spar at this stage, as the foam is really stiff. Instead of skewers and all that nonsense for a motor mount, I also made an EPS foam backing for a ply mount. The plane minus hardware is 200g, so a little on the heavy side, but glides OK across the lounge room... The plan on this has the wing in the center, which I was going to correct, but I'd already glued the horizontal stabs in. I think it's OK for profile planes to do non-scale stuff
I'll post photos tomorrow, but it's almost finished. I plan to run a KD A22-10S 1200kv motor, as its 50g weight is just about right, and it packs quite a punch. I reckon I'll run a 7x6 APC and see how it goes.
Anyhow, big thanks to those who posted links to plans. I picked out the blu-p51 from:
http://www.rcgroups.com/forums/showthread.php?t=389720
I built the 30" one. I used a KFm-4 airfoil with about 2 degrees of dihedral. I don't think I need a spar at this stage, as the foam is really stiff. Instead of skewers and all that nonsense for a motor mount, I also made an EPS foam backing for a ply mount. The plane minus hardware is 200g, so a little on the heavy side, but glides OK across the lounge room... The plan on this has the wing in the center, which I was going to correct, but I'd already glued the horizontal stabs in. I think it's OK for profile planes to do non-scale stuff
I'll post photos tomorrow, but it's almost finished. I plan to run a KD A22-10S 1200kv motor, as its 50g weight is just about right, and it packs quite a punch. I reckon I'll run a 7x6 APC and see how it goes.