7GCAA, Torque of drag/antidrag rods in wings

T

Tom Christoffersen

New member
Hey.
Can anybody tell me how much to torque the drag/antidrag rods in the wings of an 1966 7GCAA. I'm restoring my plane here in Denmark and can not find it in the books!

Hope somebody can help me out. Thank you.

Tom.
 
Answer is: As little as posible while keeping the wings in tram.

Tightening them up to begin with puts a prestress on them. So, you want to simply tighten enough to tram the spars parallel and no more than that. On wood spars, extra torque is extra pressure on the bearing plate. I have seen several where the plate has dug itself into the spar. Likely, this is not a cause for concern, but its hardly a good practice for a primary structural member.
 
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