Another Ship came in yesterday with Cobra...........yep, another loose nut! The rubber pad that protects the spar is also being compressed when the jam-nut is tightened, so UH's fix would be the best way to fix this issue. Jam-nut into another jam-nut. While we're looking things over in our trailers, it's not a bad idea to check all the adjustable fittings too. I have seen wing tip (assembly bar) adjustment so far out that the wing tip jumped out as trailer went down a rough road. Also found a scar on my root rib.............fixed it and next time I assembled the ship, the damned scar reappeared! Turned out the padding on the spar saddle, had compressed to the point the root rib started hitting the mid-span wing saddle, as the wing was pulled out.
Cobra is still the best trailer out there, thanks Spindleberger!
JJ