Thank you all. I agree that the bolts are in shear and therefore not used in
tension. I also forgot that the wings on my Mini-Max had pins in lieu of bolts
also in shear. So it's back to the airport with a snug, washer, and cotter key
per bolt. By the way, if anyone is building and needs AN6-31 drilled bolts for
their wings, I have some since I got a great deal from a shop in Texas, I paid
for 25 bolts what I would have paid for 4 at Aircraft Spruce or Wicks. God
bless Texas.
On Monday, May 24, 2021, 05:19:09 PM CDT, Chris Kinnaman
<[email protected]> wrote:
Luis - the way the fittings are designed to load the bolts in shear only
looks to me like the nut is there to keep the bolt from backing out and
no clamping pressure is considered in the design of the joint. My glider
has its wings retained by a couple of big shear pins with spring clips
to keep them from moving out, and my V-Witt's flying and landing wires
have clevis pins with cotter keys to keep them in place - NO threads
whatsoever,so zero clamping force/torque value, yet all flying and
landing loads go through them. So designing a joint like this with no
specified torque value on the bolt is probably because the bolt is used
as a pin only.
Chris K
On 5/24/2021 3:17 PM, Luis Claudio via KRnet wrote:
> Just finished attaching my wings on permanently and need to torque the bolts
> and place my cotter keys. Researching the torque value of an AN6 bolt I found
> that 95 in pounds. I researched the newsletters and could not find a remedy
> so here goes my question...
> Thanks
> Luis R Claudio, KR2S N8981S Dallas, Texas
>
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