So you can use your 1/4 to 3/16 sleeves that are very hard to find of course :-)
Most important is to ensure that the loads on the bolts are well spread across the spar caps with large penny (or is that dimes over there)washers and that the caps are drilled in their centres. Like the WAF discussion it is probably the timber that is the weakest point not the bolts. Progressive failure (??) of the timber might even be desired to reduce instantaneous loads on your hips/shoulders, vis-a-vis progressive crumpling in car design but Bill Marcy's approach seems to ignore this aspect. The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: [email protected] ----- Original Message ----- From: "Ron Eason" <[email protected]> To: "KRnet" <[email protected]> Sent: Thursday, December 11, 2003 2:51 AM Subject: Re: KR>Colin's Lap Belt attachments > How do you scale a engineering sketch, and why would you put a 3/16" bolt in > a 1/4" hole? snip....
