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Wood stringer attachment methods

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Michael A Livingston

Acquired an SA-300 and promptly took it apart.
Supporting Member
Jun 28, 2019
Reaction score
Albany, OR
I am restoring a biplane that had aluminum stringers and I am replacing them with wood. The old attachment was a screw through the stringer to a welded tab. The tabs are still there, but I was wondering what the best method of mechanical attachment for wood was. I thought wood screws, but I was concerned they may vibrate out. I also considered using a machine screw through the wood like the aluminum, but that I thought would weaken the stringer. I have seen posts about safety wire as an option as well.

What have others done and what has worked well, not well?


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