New Zealand CAA put out a AWB on these in 1979 because some WAF's must have shown play. They cite one case of .75" total movement at the wing tip. Suggested fix is to ream WAF holes oversize, and machine inserts to fit close tolerance AN bolts, with a spreader tube between the inserts. Torque specified was just sufficient to nip up the spacer tube. I quite like the idea of inserts and spacer for removeable/folding wings, having a better bearing area on the bolts.
----- Original Message ----- From: "Matthew Elder" <eldo...@yahoo.com> To: "KRnet" <kr...@mylist.net> Sent: Sunday, October 10, 2004 5:33 PM Subject: KR> Magic Number > > All, > > Looking for information on the "magic number" for torquing assemblies to the main spar (like the W.A.F.'s.) I've heard/read 10 ft. lbs. but just wanted to see what others were doing. The ole that-feels-about-right method might be okay too ;-) Thoughts?
