[NSRCA-discussion] Carbon wing tube question

[Grow Pattern]

John,
            The best "home-fix" that I have seen was done by Bob Noll on one 
of my planes many years ago.

He used a 3/8" dowel across the diameter of the tube. He drills the dowel 
lengthwise to accommodate a 4-40- bolt. Then he cuts the dowel in half and 
sandwiches a 4-40 blind nut between the two halves.

Then you sand the ends of the dowel to match the curve of the inside of the 
wing tube. Medium CA will keep the  retainer in place within CF tubes.

A very inexpensive and solid solution to your needs.

Regards,

Eric.

P.S. I do not drill the CF tube. A drill will split the fibers apart. I use 
a pointed Dremel grinding stone instead to bore a hole.

----- Original Message ----- 
From: "John Pavlick" <jpavlick at idseng.com>
To: "NSRCA Discussion" <nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, May 02, 2006 1:12 AM
Subject: [NSRCA-discussion] Carbon wing tube question


> Guys,
> I'm fitting a new carbon wing tube into my Focus to replace the original
> aluminum one. Just wondering the best way to set up the threaded holes in
> the ends. I've seen nylon inserts, hardwood, all kinds of stuff. I'll
> probably just go with hardwood inserts because that's what I have on hand
> unless I hear of a better way (suggestions please). How should I align the
> grain in relation to the threaded holes if I use the wood inserts?
>
> John Pavlick
> http://www.idseng.com
>
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