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Date: Thu, 11 Apr 2002 07:52:28 -0700
From: Brent Regan <Brent@regandesigns.com>
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To: Lancair List <lancair.list@olsusa.com>
Subject: Re: More cool tools (Livelock Fasteners)
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          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> 
>>
Rob Asks:

<<Which Fairchild Livelock fasteners did Steve use...several shown?>>

Steve used the ones I showed him on my airplane. They are:

Livelock Structural Panel Fasteners
The Nut part # is CA1810 and the recommended Stud is CA1820-2. The -2 
part of the stud part # is the grip length. They do make a -1 grip BUT 
if you bottom the stud in the nut you will fail the cap at the bottom of 
the hex. I would recommend using -2s throughout and shimming the nuts to 
get a consistent grip length. On my plane I spaced them 4-5" apart and, 
on each side of the cowling, I used 4 on the upper cowl, 4 on the lower 
cowl above the exhaust, 4 around the gear doors and two behind the 
spinner for a total of 28. I also used a carbon lip across the top of 
the upper cowl (in front of the windshield) and piano hinge between the 
upper and lower cowls.

You need two fasteners behind the spinner between the upper and lower 
cowl to keep the area behind the spinner from fishmouthing when the cowl 
is pressurized during flight.

The Livelocks are EXPENSIVE (about $25 a set) and worth every penny. 
They were developed to secure access panels on supersonic fighter 
aircraft. We used to use them on the endurance race cars and I have used 
them on my airplane for almost 7 years without a single problem. They 
never strip out, they never loosen until asked and I can remove the 
cowling in about a minute with an Allen wrench that hangs on my airplane 
keychain.

The last time I bought them, it was from Special-T Fasteners which is 
now Fairchild Fastener at 818 527 3600.

Sometimes the decision to pay for quality is tough to make but it always 
gets easier over time.

Regards
Brent Regan



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