<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
         <<  Lancair Builders' Mail List  >>
         <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>

Angier:

I switched to SS screws on the flap, aileron, gear door and elevator hinges
as well as the cowl mounting as soon as I got N235SP flying. I've never had
one fail in service though occasionally one will cam-out (the phillips cross
slot rounds out) upon removal. I changed for two reasons: the regular steel
ones froze up a lot and cammed out too, second, I just think the SS screws
look better. As far as strength is concerned, you'll probably tear out the
fiberglass before the SS screws will fail.

With the SS as well as the regular screws, if one does cam-out, you'll need
a small Easy-out and the correct size drill (they should come as a set) to
remove the damaged screw. I've had to do it a number of times on both types
of steel - no big deal. Just go easy with the drill and go only as deep as
needed to allow the Easy-out to grab completely, try not to get into the nut
plate. If you do, you'll need to replace it too.

Dan Schaefer

LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
Builders' Bookstore:   http://www.buildersbooks.com/lancair

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