Dave Acklam wrote: > My mismatch is at the 'big' central bolt-hole where the top wing WAFs > attach to the top fuselage WAFs
My bad...I apparently missed that detail. Then yes, I'd just make a new set of WAFs also. Although you can stress relieve 4130 after welding with a torch, to be sure it's as good as new 4130 plate, you need a "certified" welder, checked for incomplete penetration with radiographic inspection. New holes in new material is the way I'd do probably do it. It's a lot easier and cheaper. But just to throw another curve ball, given the amount of "extra" material around those holes, if the next larger diameter bolt would work, there's always match drilling to use the next size larger bolt, or even two sizes. Now that I think about it, that's exactly what I'd do if it were mine. Mark Langford ML at N56ML.com http://www.n56ml.com
