Hi Joe, Glenn, Patrick and Robin ..... Thank you for your comments and just to clarify, I didn't mean to justify slop, quite the opposite.I have wing tip slop on my aircraft and am not happy with it.
I also believe that, with the standard parallel bolt system, it is not possible to eliminate all wing tip slop due to the necessary assembly clearance and the large forces that oppose and perhaps overcome friction between the WAF blades in flight and during taxiing. We are talking a few thousandths of an inch movement at the WAF which I'm not sure that you could discern with paint marks, IMHO. The sure way to discover any loose fit is to slacken the nuts off and check your wingtip movement. By way of comment, I can't detect any movement either with the bolts tight, but have play of several thousandths of an inch at the bolt holes giving me 1 inch of play at the wing tip when the bolts are loose and friction is not confusing the issue .... My goal is to get closer to the perfection of which you speak, if I can, with an improvement in the design of the WAF area .... and to make my flying safer! I'll let everyone know if I come up with a suitable design ..... Cheers Martin Martin Pearce - KR2 with Subaru EA81 + KR2 S with GMH Saturn - Both in my garage, neither registered or flying in Au ---yet! rocketdri...@optusnet.com.au