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<DIV>I swear I've bought some ARF's that had helical ailerons. Trust me, It's
not all that it's cracked up to be! (or maybe that was a mis-statement).</DIV>
<DIV>G.</DIV>
<DIV> </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=jpavlick@idseng.com href="mailto:jpavlick@idseng.com">John
Pavlick</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, September 04, 2006 11:20
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Aero
design question</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=730511403-05092006>Yeah, or do the "flexiron" thing. You can
make all kinds of cool shapes with 3 servos. The flexible aileron will
interpolate the rest of the curve (somewhat). Think about it. Hey, maybe we
should actually try this. </SPAN></DIV>
<DIV><SPAN class=730511403-05092006></SPAN> </DIV>
<DIV><SPAN class=730511403-05092006>
<P><FONT size=2>John Pavlick<BR><A href="http://www.idseng.com"
target=_blank>http://www.idseng.com</A><BR> </FONT> </P></SPAN></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B> <A
href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A>
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of
</B>Rcmaster199@aol.com<BR><B>Sent:</B> Monday, September 04, 2006 11:04
PM<BR><B>To:</B> nsrca-discussion@lists.nsrca.org<BR><B>Subject:</B> Re:
[NSRCA-discussion] Aero design question<BR><BR></FONT></DIV>
<DIV>
<DIV>Now John may be on to something here....3 servos driving each
aileron on a pattern plane. HMMMMM!!!</DIV>
<DIV> </DIV>
<DIV>If helical is what you want, cut the aileron 3 ways, proportional areas
in each segment of course and drive it with Johns 3 preprogrammed
servos. And you can use the smallest, fastest servos around so your response
will be outasight. That's the ticket laddie, Ahuh....</DIV>
<DIV> </DIV>
<DIV>VBG</DIV>
<DIV> </DIV>
<DIV>I think I'll open another bottle of Rafanelli '02, and continue
toasting :)</DIV>
<DIV> </DIV>
<DIV>Matt</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>In a message dated 9/4/2006 10:50:47 PM Eastern Standard Time,
jpavlick@idseng.com writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid">
<DIV><SPAN class=610271002-05092006><FONT face=Arial color=#0000ff>Now
that sounds like the way to go! Except I think you actually need 3
servos to do it right. I'm setting up the mix on my 12z
now...</FONT></SPAN></DIV>
<DIV><SPAN class=610271002-05092006><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=610271002-05092006><FONT face=Arial color=#0000ff>
<P>John Pavlick<BR><A title=http://www.idseng.com/
href="http://www.idseng.com/"
target=_blank>http://www.idseng.com/</A><BR>
</P></FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of
</B>george w. kennie<BR><B>Sent:</B> Monday, September 04, 2006 9:55
PM<BR><B>To:</B> NSRCA Mailing List<BR><B>Subject:</B> Re:
[NSRCA-discussion] Aero design question<BR><BR></FONT></DIV>
<DIV><FONT face=Arial>For cryin' out loud, if your going to go to all
that trouble, use two servos per panel at the opposing extremes of each
flexible aileron driving in opposite directions. Now that's HELICAL
!!!!!!!!!!!!!!! What the heck have you guys been smokin'
?????????????? And I thought I was extreme. Are we in the
"Twilight Zone" here? BGw?</FONT></DIV>
<DIV><FONT face=Arial>G.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </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:patterndude@comcast.net
href="mailto:patterndude@comcast.net">Lance Van Nostrand</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=mailto:nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, September 04, 2006
9:05 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Aero design question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial>Helical pitch ailerons! Nat, this is
brilliant. Instead of making stiff ailerons, make them to
flex. glue the tip to the wing tip and drive the root end.
Ailerons would work just like a 74x6 propeller.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>--Lance</FONT></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:natpenton@centurytel.net
href="mailto:natpenton@centurytel.net">Nat Penton</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=mailto:nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing
List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, September 03,
2006 9:31 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Aero design question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial>Hey Tom</FONT></DIV>
<DIV><FONT face=Arial>I'm not providing solutions - just
putt'in more wood on the fire. In steady state roll the least drag
position of the ailerons would be constant AOA root to tip. This
would call for the percentage of chord to progress linearly so that
it would be double at the tip vs the mid span position - no
different than helical pitch. </FONT><FONT face=Arial>A ( severe ?)
negative would occur, though, when the ailerons are initiated,
potentially causing a tip stall.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Martin Simmons provides a curve showing Cl vs
% of chord for the aileron. Going over 20% doesen't get you
much for the dollar - just much more servo wear and tear (
especially with the 160 <G> ).</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>IMO it is not worth the extra work to stop the
ailerons short of the
tip.
Nat</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></DIV>
<DIV></DIV></BLOCKQUOTE>
<P>
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