Lucas Hofman Posted March 31, 2017 Share Posted March 31, 2017 Posted by Martin Dance 1 on 30/03/2017 21:58:07: Lucas, that was my conclusion too. The ply reinforcement in that area will strengthen the TE/TE sub spar joint anyway and a small piece of ply on the upper surface of the wing will provide some extra support. I was going to use two wing bolts as well, either M4 or M5 nylon bolts. Although I did have one model where the wing bolts were 4BA simply threaded into a hardwood block and it never failed, much to my surprise. I have that one one 25 side cub too (in 3 or 4 mm ply). Still pulled out the plate when it crashed, not the wing bolts from plate (these where nylon m4). Maybe I will give it a try again. If the "thread" slips when tightening one always can drill out the hole and insert a blind nut (or an insert). Lucas Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.