Wiseacre Dave
Well-Known Member
I'm almost finished building the first wing for my 1550V V-Max. Some builders have noticed that it's not easy to access the forward strut fitting attach bolt heads. This is somtimes needed because with changing humidity conditions the bolts might become loosened. The only way to get a wrench on the bolt heads is from the wing root with a socket or wrench attached to a long stick---and only if you had built lightening holes in the end rib. The corresponding nuts are accessible via a standard inspection plate built into the fabric on the rear side of the front spar.
I designed and built an access through the leading edge ply to address this problem, and I incorporated it into my recent wing build. The system works very well. It's based on the spec AC 43.13-1B method for repairing damage to plywood by using a "plug patch". I adapted the method to put a cover plate on the access hole.
Attached is the document with photos describing my method and how to build it.
I designed and built an access through the leading edge ply to address this problem, and I incorporated it into my recent wing build. The system works very well. It's based on the spec AC 43.13-1B method for repairing damage to plywood by using a "plug patch". I adapted the method to put a cover plate on the access hole.
Attached is the document with photos describing my method and how to build it.
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