Gentlemen, it's an old 62'' Ohio RC Ultimate with a Brison 2.4 in great shape. I'm almost ready to do some airtime, but no plans. If anybody has the plans, I would like to know the recomended fuel tank size and the rec'd CG. location.

CG isn't too bad.
from the leading edge of the top wing come back 30 per cent
from the leading edge of the bottom wing come back 30 per cent
draw and imaginary line between those 2 points CG is on that line centered between the wings

Thankyou, is the 30% back of the LE, at the root or at the mid point of the wing.

wing root against the fuselage

Great, thanks for your input. I think I will put a 24 oz tank in.