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<DIV><FONT face=Arial size=2>I have spent a fair amount of time considering this
situation. I have concluded there is no reason to take the risk of adding
unnecessary turbulence to the empennage.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>In gentle maneuvering it probably has little
effect. In aggressive maneuvering (think snaps) it likely leads to inconsistent
behavior. Inboard ailerons may contribute additional available force in 3D
maneuvers (hanging on prop?). </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Other related considerations are aileron shape and
the hinging geometry. I also suspect fat fuselages reduce these effects by
dispersing the turbulence over a greater volume of air.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Just my two cents worth!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>John Ferrell W8CCW<BR>"My
Competition is not my enemy"<BR><A
href="http://DixieNC.US">http://DixieNC.US</A><BR></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=pentagon.systems@bigpond.com
href="mailto:pentagon.systems@bigpond.com">Peter Pennisi</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> Friday, September 01, 2006 8:35
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Aero design
question</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">My current model has
ailerons which extend a fair way towards the fuselage (Comp-ARF IMPACT) What
effect does the turbulence coming off the aileron have on the tail plane. I am
currently building another IMPACT (IMHO flies extremely well) which I am
considering to reduce their size by cutting and fixing the inboard part to the
wing in an attempt to clean up the airflow over the tail plane during rolling
maneuvers . The model does roll well but it could be
better.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Am I barking up the
wrong tree – any thoughts!<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Peter
<o:p></o:p></SPAN></FONT></P></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
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