I'm in my 6th year flying 6399U with 1 bolt per attach point, been in weather bad enough ( windy ) to give you some religion if you had none previously. Personnally I prefer 1 bolt per attach point, If 1 bolt shears you still have 3 per spar end as opposed to 2. But why are we talking about this? If any body ever sheared a bolt in flight I would think that person's inclination was to over torque during assembly.
Ken Wiltrout Ktown, Pa ----- Original Message ----- From: "Dan Heath" <[email protected]> To: <[email protected]> Sent: Friday, June 09, 2006 8:38 PM Subject: Re: KR> WAF Bolt Sheer Load > That seems to be what all the engineers say. And, I am sure they are > correct. I just can't make myself do it that way. I used 1 per attach > point on my first KR, and it worked, so I feel comfortable with it. I > think > it is the thought that if any one of those bolts fail, it is all over. > > See N64KR at http://KRBuilder.org - Then click on the pics > See you in Mt. Vernon - 2006 - KR Gathering > There is a time for building and a time for FLYING and the time for > building > is OVER. > Daniel R. Heath - Lexington, SC > -------Original Message------- > A better design is to use one long bolt with a > compression member between the WAF pairs instead of paired short > bolts, placing the joint in a balance double shear. This is my > considered opinion as a professional engineer. > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.8.3/359 - Release Date: 6/8/2006 > >
