I constructed my wing rack and hung the wing skeleton for the RV7. I hung the plumb bobs at the extreme ends of the main spar and rear spar per the plans. I measured between the two points and adjusted the angle of the supports until they were the same at each end.
The spar is close to perfect level left to right. However, when I put the level front to back, they are not level. In fact, they are opposite of one another, which to my simple thinking would indicate a twist.
My question is, are the plumb marks the only important thing to make sure there is no twist in the wing? Do I need to worry about what the level says? I know some say the prepunched kits today eliminate twist, but I also want to be diligent.
Any thoughts?
The spar is close to perfect level left to right. However, when I put the level front to back, they are not level. In fact, they are opposite of one another, which to my simple thinking would indicate a twist.
My question is, are the plumb marks the only important thing to make sure there is no twist in the wing? Do I need to worry about what the level says? I know some say the prepunched kits today eliminate twist, but I also want to be diligent.
Any thoughts?