macrafic
Well Known Member
I just finished my right flap (7-A) and have a known problem and a potential one.
On the top side of the flap, laying a straight-edge from leading to trailing edges shows a completely flat flap, both on the inboard and outboard ends. However, on the bottom side, my flap is
concave, with the mid-point between the leading and trailing edges showing about 1/32" gap between the surface of the flap and the straight-edge.
Is this normal? If not, is it critical? If it is critical, do you have any ideas on how I might fix it?
Also, I believe I have stripped the platenut into whicht he rod end bearing threads. To avoid having to completely build another flap, I was thinking I might drill out the rivets to remove the inboard rib, replace the platenut, then use Cherry Max structural pop rivets to re-rivet the inboard rib to the skins. Does this sound structurally sound? Does anybody see any problems with this approach?
On the top side of the flap, laying a straight-edge from leading to trailing edges shows a completely flat flap, both on the inboard and outboard ends. However, on the bottom side, my flap is
concave, with the mid-point between the leading and trailing edges showing about 1/32" gap between the surface of the flap and the straight-edge.
Is this normal? If not, is it critical? If it is critical, do you have any ideas on how I might fix it?
Also, I believe I have stripped the platenut into whicht he rod end bearing threads. To avoid having to completely build another flap, I was thinking I might drill out the rivets to remove the inboard rib, replace the platenut, then use Cherry Max structural pop rivets to re-rivet the inboard rib to the skins. Does this sound structurally sound? Does anybody see any problems with this approach?
