From: RWolf99@aol.com
Message-ID: <4c.5fc0e8d.298ed1b3@aol.com>
Date: Sun, 3 Feb 2002 12:47:31 EST
Subject: Rivets for Nutplates
To: lancair.list@olsusa.com
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Reply-To: lancair.list@olsusa.com

          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> 
>>
The Lancair 320 manual calls for hard rivets (AN426AD-3-6) to be used to to 
secure nutplates for the flap hinges.  Can I use soft rivets (AN426A-3-6)?

Why do I think I can do this?  Every other place in the manual (so far) where 
it tells me to attach nutplates I am directed to use soft rivets.  The kit 
supplied me with soft rivets in this exact size, but no hard rivets.  (And 
no, they weren't mislabeled rivets that a several-year-old factory service 
bulletin warned us about.)  But before I put 72 soft rivets into my flap 
hinges, I'd like to verify that I'm not doing something stupid.

What do the rivets do, anyway?  I thought their purpose was to only to keep 
the nutplates from spinning when the bolt is torqued, that axial loads in the 
bolt were taken by the bolt itself and transferred to the parent material by 
the nutplate's flat surface without loading up the rivets, and that shear 
loads were taken by the bolt and the bearing area of the hole while again not 
loading up the rivets.

Comments, please?

- Rob Wolf
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LML website:   http://members.olsusa.com/mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair
Please remember that purchases from the Builders' Bookstore
assist with the management of the LML.

Please send your photos and drawings to marvkaye@olsusa.com.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>