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<DIV><SPAN class=082573103-01012005>I heard that Prettner felt that he needed to
lower the stab to get it out of the wing's wake and did not want to cut it
out and reinstall it so simply cut the two halves off and glued them back on at
a downward angle. I built and flew Hobby Barn glass fuse, foam wing Curare
back then when I was just getting started in Sportsman. I thought the anhedral
stabs looked very cool. I also heard that these planes had tracking problems in
crosswinds because the stabs presented more side area to the wind which
caused the tail to bounce around more. </SPAN></DIV>
<DIV> </DIV><!-- Converted from text/rtf format --><BR>
<P><SPAN lang=en-us>Thanks, Rich</SPAN> </P><BR><BR><BR><BR>
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<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org] <B>On
Behalf Of </B>Karl G. Mueller<BR><B>Sent:</B> Friday, December 31, 2004 10:36
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Re: Next revolution
in pattern planes?<BR><BR></FONT></DIV>
<DIV>Matt,</DIV>
<DIV> </DIV>
<DIV>You were close. The year was 1977 and the location was Springfield,
Ohio.</DIV>
<DIV>That was the year a twister went through the competition site the night
before</DIV>
<DIV>and tore down, among other things, one of the tents that was used to
store </DIV>
<DIV>the models in. It was quite a mess, but the contest went ahead as
scheduled.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Karl G. Mueller<BR><A
href="mailto:kgamueller@rogers.com">kgamueller@rogers.com</A><BR></DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Rcmaster199@aol.com
href="mailto:Rcmaster199@aol.com">Rcmaster199@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, December 31, 2004 9:35
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Next revolution in pattern
planes?</DIV>
<DIV><BR></DIV><FONT id=role_document face=Arial color=#000000>
<DIV>
<DIV>Anhedral stabs are affected by crosswind more than flat stabs. At least
for the kind of flying we demand. The Prettner Curare design, World Champ
around 1976 or so, introduced the feature to models. By virtue of its being
World Champion model, everybody copied it. Sort of the way fixed gear took
over from retracts, except fixed gear have persisted far longer and serve
the intended purpose well. </DIV>
<DIV> </DIV>
<DIV>Curares and other anhedral stab designs flew well into the 80's but
eventually the fad died down. </DIV>
<DIV> </DIV>
<DIV>Naruke san is possibly trying to cure some aerodynamic inadequacy by
employing the feature again. Or maybe just likes the look. It does look Kool
as hell. I doubt that this is a revolution though; more like evolution....in
reverse</DIV>
<DIV> </DIV>
<DIV>MattK</DIV>
<DIV> </DIV>
<DIV>In a message dated 12/31/2004 6:54:03 PM Eastern Standard Time,
rcaerobob@cox.net writes:</DIV>
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style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000>
<DIV><FONT face=Arial>Beautiful plane, but planform is BTDT, remember
Hanno??? And the Bridi UFO? And others. The anhedral stab
really introduce bizarre characteristics, if I recall. It was
abandoned as an "innovation" about as fast as *somebody's* "Split Rudder
"airbrake"....</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Man, we are O-L-D...</FONT></DIV>
<DIV><BR>Bob Pastorello<BR>NSRCA 199 AMA 46373<BR><A
title=mailto:rcaerobob@cox.net
href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A><BR><A
title=http://www.rcaerobats.net/
href="http://www.rcaerobats.net/">www.rcaerobats.net</A></DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=mailto:adam.g@sasktel.net href="mailto:adam.g@sasktel.net">Adam
Glatt</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=mailto:discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, December 31, 2004
4:54 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Next revolution in pattern
planes?</DIV></BLOCKQUOTE></FONT></BLOCKQUOTE></DIV>
<DIV></DIV>
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