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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>SAME THING ON MY HYDE-A-WAY!! I installed
a larger False Rib from the bottom & used <span class=SpellE>Elmers</span>
Polyurethane on Foam areas! Cause it swells & fills any Voids in the foam
areas. Don’t get any in your sockets!!<span
style='mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><span
style='mso-spacerun:yes'> </span>Now back to trying to get a C O N
S I S T A N T <span style='mso-spacerun:yes'> </span>Snap!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Grow Pattern<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, January 07, 2005
7:40 PM<br>
<b><span style='font-weight:bold'>To:</span></b> discussion@nsrca.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> 2005 Masters maneuver #4
- Warning</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><em><i><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>This is a sort of public service
announcement, or at least please regard it as a "Heads-up".</span></font></i></em><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>For all of you who are flying or
will be flying the Reverse Avalanche you might want to check your wing tubes
and phenolic tube wing supports.</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>It seems that if you go into the
snap a bit hard you can bend your wing tube or, in the worst case scenario
break, your wing. The plane is pulling some G's at the bottom of the
loop and then you add more by putting in a lot of elevator to get a
good break for the snap.</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Last year I had several incidents
reported to me and my initial reaction was to say that they were probably not
flying the maneuver correctly. <em><i><font face=Arial><span style='font-family:
Arial'>"You need to slow the plane down at the bottom of the loop",</span></font></i></em>
I said. I must add that what I said did not impress an FAI and pilot
and District masters champion very much. :-(</span></font><o:p></o:p></p>
</div>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>So strapping on my asbestos
underwear I decided to do some testing of my own. At the end of November
2004 it was nice here in NJ. I took the Focus-2 and the Temptation out for
a day of Masters 2005. Both planes were inspected for tube tightness and the
wing covering touched up with the glove-iron.</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Twelve flights later and an average
of 10 reverse avalanches in each flight I went home thinking all was well. (It
got cold and a bit dark too).</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Back in the shop the first thing
that I noticed was new wrinkles in the covering on the Temptation wings.
Nothing was loose. To test this I put the wing-tube in the wing and leaned on
it a little. All was well but I was beginning to think that the wing must
have flexed to cause the covering to loosen up. A bit like what the
covering sometimes does around the aileron horns. It this case it was at the
roots above the tubes - both sides.</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Then I turned to the Focus-2 wings.
Not good! The wing-tube could now be moved up and down and I could hear foamy
crunches in both of the wings. Both wings have Carbon tube wing tubes and it
dawned on me that they could not bend (much) or stay bent. That is why I
had not seen this before. The forces were applying themselves to the ends of
the wing tubes. I opened up both panels and added epoxy and micro balloons to
stabilize the sub ribs. It was an easy repair but could have been a lot worse
if I was not looking for it.</span></font><o:p></o:p></p>
</div>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I am advised that stress damage
is cumulative and that it does not show up initially. It certainly had
not revealed itself while I had been demonstrating the 2005 schedule over
the late summer of 2004. So where does this leave me? I think we have a
potential problem that requires frequent preventative equipment inspection
depending upon the planes that you fly. If you can slow down your plane and it
is at around 10 lb you may never see this happening.</span></font><o:p></o:p></p>
</div>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><strong><b><u><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>I would strongly
advise checking your wing with the wing tube in place to look for tube movement.
Also look for straightness if you have an ali-wing-tube.</span></font></u></b></strong><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>This situation is a bit unique for
me. It is the first time I have been involved with a maneuver that you don't
know you are doing it wrong unless you fly it that way too many times. And
then only if the wing shows damage or even worse it breaks in the air.</span></font><o:p></o:p></p>
</div>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Regards,</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><br>
Eric Henderson.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>P.S. The only time I remember
seeing a reverse avalanche before is in the hardly flown?
current FAI Finals schedule.</span></font><o:p></o:p></p>
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