How do you load test a wing rib? When builders say they load tested a wing, most of the time what they are saying is that they load tested the wing spar(s) by turning the plane upside down and putting weights on the wing. This procedure doesn't load test the ribs, so how do you load test a single rib?
Rib is load tested upside down with weights on its flat bottom side to simulate air deflection during flight,and two ropes holding the rib up at positions where the spars will sit.