For an AN3 bolt in single shear mode, steel is 2,125 lbs.; aluminum is 990 lbs.
A AN4 bolt used as a tailwheel axle has a shear strength of 3,680 lbs. Hmmm, assuming a 36 pound load on the tail that's a 100g landing. :-) Reference: the table on page 84 of the 2004 Wicks catalog. Allen G. Wiesner KR-2SS/TD S/N 1118 65 Franklin Street Ansonia, CT 06401-1240 (203) 732-0508 flash...@usadatanet.net