hi
i have two foam wings and tail feathers for a gaint shoestring racer and a gaint prime cut i dont like using foam on big birds i would like a build up wing so i can make them into two piece wings for transporting to the feild and i going with the dle 35 on both 80" wings ,how would i meausre the bays for the ribs and cut the foam to get the ribs outline and where to put the main spar etc, thanks