[mcdblj]

Hello,

Took over a Rv4 project. On inspection I noticed the holes to mount the longeron to the engine weld mount were little close to the edge for my liking. They had built a plate but it does nothing structurally. Any suggestions out there?

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[-goose]

My opinion - I'ts probably a non-issue if the rivet holes in the side are ok. But if it does need a fix, I think a doubler is the right idea but it needs to be properly tied to the longeron, so make a new one extending further aft say 3-4 rivets worth. I'd say it should be shaped to sit on the bottom side of the longeron flange not sitting on top of the weldment, and have a 1/8" packer where the inside row of holes is on the doubler to deal with the gap.

But first thing I'd do for a structurally significant area like this is ask the engineers at Van's.

 

[acam37]

I just had the same issue. Drilled out all the rivets, removed and replaced with 1" angle. Easy fix. I can walk you through the process if needed. I've got pictures also.