<DIV>FWIW, I lost a plane that I bought used that had a 2-56 bolt tapped into the top center of the tube. After several hundred flights the aluminum tube broke directly through the hole. Ugly. Was at the bottom of an outside loop, so the tube broke on the tension (toward the top of the plane) side. Neil<BR><BR><B><I>Bob Kane <getterflash@yahoo.com></I></B> wrote:
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<DIV>I would be concerned about weakening the wing tube by drilling a hole near the center, the compression and tension forces are at their maximum. But your experience shows it works, the tube must be much stronger than it needs to be. <BR><BR><B><I>Dennis Cone <cone.man@verizon.net></I></B> wrote:
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Something I have been doing for several years is to install a small piece of<BR>light ply to the tube sleeve inside the fuselage and drilling through it and<BR>the sleeve and then tapping the wing tube. This not only eliminates the need<BR>for wing tube stops, which save weight, but also stops any turning of the<BR>tube in the sockets. Just don't over tighten the 4-40 socket screw.<BR><BR>Dennis Cone<BR><BR><BR>-----Original Message-----<BR>From: discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]On<BR>Behalf Of jivey61@bellsouth.net<BR>Sent: Monday, May 17, 2004 11:15 AM<BR>To: discussion@nsrca.org<BR>Subject: Re: Wing tube socket stop repair ideas<BR><BR>Bob<BR>If you do this be very careful not to get any CA on the inside(sides) of the<BR>tube. It will cause the tube to get tight in this area.May have more trouble<BR>than you wanted.<BR><BR>Jim Ivey<BR>><BR>>
From: Bob Kane <GETTERFLASH@YAHOO.COM><BR>> Date: 2004/05/17 Mon PM 01:00:23 EDT<BR>> To: nsrca <DISCUSSION@NSRCA.ORG><BR>> Subject: Wing tube socket stop repair ideas<BR>><BR>> I have a minor problem with a wing tube socket. The stop at the inside end<BR>of the tube is a 1/4" piece of wing tube material with a slot cut in it so<BR>it fits inside the tube and glued in place. After two seasons of flying, for<BR>whatever reason, the wing tube can now push itself past this stop and wedge<BR>in the tube socket. It is a minor annoyance, but I was pondering possible<BR>fixes. One was to cut teeth into an old wing tube and grind a bit of the<BR>existing stop out, then pushing an 1/8 plywood disk to the bottom of the<BR>tube and securing with a few drops of foam safe CA.<BR>><BR>> Anyone run into this problem before and have alternative methods of<BR>repair? Thanks.<BR>><BR>><BR>> Bob Kane<BR>> getterflash@yahoo.com<BR>><BR>>
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