Looking for supplier of wing tubes for Rich Urivitch 81 inch OV-10.

Try TnT Landing Gear: http://www.tntlandinggear.com/

Thanks for the address. Now for the big question: Plan on breaking the wing into 3 parts - center wing 34 in. (9 ribs), outer wing 21 in. (5 ribs). How long should the wing tube be on each side?

For support 3 ribbs on each side of break point. Which would give 24" per side for safety

Just the info I needed. Thanks.