When riveting the TE of the trim tab, it appeared to me the specified rivets were too long. The shop head of the "double flush" set seemed to overfill the dimple. I switched to a shorter rivet and had more of the "acorn" look the plans show. I am now ready to rivet the TE of the elevators and was curious if anyone else seemed to have this issue with specified rivets. (426-4 vs 426-3.5 I think, plans not with me at work). If you used the rivets called out in the plans, does the shop head of your double flush rivets sit above the skin level?
Rob
Rob