<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.6000.16414" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2>Yes. The aileron is a part of the wing for CG
calculation.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>If you don't include the aileron you'd end up with the CG appx
2% to 6% forward (depending on aileron size and other factors...) It would be
flyable, but you wouldn't like it.</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=aabdu@sbcglobal.net href="mailto:aabdu@sbcglobal.net">Anthony
Abdullah</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> Wednesday, May 02, 2007 10:54
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Odyssey
CG</DIV>
<DIV><BR></DIV>I assume that the leading edge to the trailing edge measurement
of the wing chord includes the aileron?<BR><BR><B><I>"george w. kennie" <<A
href="mailto:geobet@gis.net">geobet@gis.net</A>></I></B> wrote:
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="MSHTML 6.00.6000.16414" name=GENERATOR>
<DIV><FONT face=Arial size=2>Anthony,</FONT></DIV>
<DIV><FONT face=Arial size=2>He doesn't want you to go out 13.5 inches from
the root section of the wing. He wants you to move out on the panel to
a point where the wing measures 13.5 inches from the leading edge to the
trailing edge, in other words, the point where the CHORD of the wing is
equal to 13.5 inches wide, and that's probably going to happen around 17 or
18 inches out. On top of that, you're going to have to use the actual
numbers ( chord/tip) from YOUR wing.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></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=aabdu@sbcglobal.net href="mailto:aabdu@sbcglobal.net">Anthony
Abdullah</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> Wednesday, May 02, 2007 9:21
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Odyssey CG</DIV>
<DIV><BR></DIV>
<DIV>A huge thank you to all that have provided information. I apologize
for my ignorance, I am one of those people that tends to follow the plans
as a starting point and fine tune from there. As such I do not have a firm
grasp of the concept yet but love learning about it.</DIV>
<DIV> </DIV>
<DIV>Simple question:</DIV>
<DIV>Does the 13.5 in the below example refer to the distance out from the
center of the fueslage or from the root rib? As I understand it, if I go
out 13.5 from that point (fuse center I believe) and draw a
perpendicular line that will be my MAC. Setting the CG from there is just
a matter of taking 25% to 30% of the MAC distance out (13.5 for example)
and marking that on the fuse at the root rib?<BR></DIV>
<DIV> </DIV>
<DIV>Thanks again for all of your help!!</DIV>
<DIV>With any luck the next thing you hear from me will be a successful
maiden flight report.</DIV>
<DIV>Anthony</DIV>
<DIV><BR><B><I>"Dr. Mike Harrison" <drmikedds@sbcglobal.net></I></B>
wrote:</DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="MSHTML 6.00.5730.11" name=GENERATOR>
<DIV><FONT face=Arial size=2>Anthony,</FONT></DIV>
<DIV><FONT face=Arial size=2>They are all correct. That is 30% of
MAC or mean aerodynamic chord. A reasonable estimate with double
taper wing is to add root chord plus tip chord divide by 2 and take 30%
of that. For example if the root is 18 inches and tip is 9
inches that adds to 27/2 equals 13.5 as your MAC. Go to your wing
and locate it. It is about halfway out. Take .30 equals 4.05
inches, mark it and go perpendicular to the root rib and mark on the
root rib. There is a very specific formula for this in Ron Van
Putte's old articles, but this is quick and dirty and will get you there
in the shop or at the field.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Mike</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=geobet@gis.net href="mailto:geobet@gis.net">george w.
kennie</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> Tuesday, May 01, 2007 1:27
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Odyssey CG</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Anthony,</FONT></DIV>
<DIV><FONT face=Arial size=2>Not trying to start a war here, but if
that thing has a tapered leading edge, I think you might want to move
out almost half way on the panel and then go for your 30%. If you
start at the root, you may find yourself flying a brick. Trimming on
KE on a 45 degree upline might also be a worthwhile addition to your
trimming regime.</FONT></DIV>
<DIV><FONT face=Arial size=2>G.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></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=aabdu@sbcglobal.net
href="mailto:aabdu@sbcglobal.net">Anthony Abdullah</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> Tuesday, May 01, 2007
1:46 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Odyssey CG</DIV>
<DIV><BR></DIV>
<DIV>Dr. Harrison,</DIV>
<DIV>Thank you very much for the information! I agree with you
completely that the CG is pilot specific. I tend to like my planes
just a hair tail heavy compared to others. What I was afraid of was
having the CG so out of whack that the plane would not survive its
maiden flight.</DIV>
<DIV> </DIV>
<DIV>I know that 30% is the rule of thumb and I wanted to make sure
that applies to the Odyssey. Just to summarize and for example, If I
am looking at the wing root of one panel and the chord is 10 inches,
I wand to start with the CG roughly three inches from the leading
edge at the root (fuselage)?</DIV>
<DIV> </DIV>
<DIV>I will follow that and let you know how it turns out.</DIV>
<DIV> </DIV>
<DIV>Is there anything else I should know about the Odyssey?</DIV>
<DIV> </DIV>
<DIV>Thanks again</DIV>
<DIV>Anthony<BR><BR><B><I>"Dr. Mike Harrison"
<drmikedds@sbcglobal.net></I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="MSHTML 6.00.5730.11" name=GENERATOR>
<STYLE></STYLE>
<DIV><FONT face=Arial size=2>Anthony,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I designed the Odyssey and I can't
tell you where it is, but I can recommend some guidelines.
First, however let me give some opinion as to the value of cg
location. I believe the optimum cg location is pilot
sensitive, that is to say different flyers prefer different cg's
based on how the plane is set up. For that reason I
recommend a range that is easy to find then fly the airplane and
change the cg until you like the way it flies. Some points
to remember are to fly full speed then cut the throttle, the plane
should descend very slowly. If it descends rapidly, then it
is nose heavy. If it climbs, it is tail heavy. That
will get you close. After that make very small changes to
suit your style. On your root rib mark from 28 to 32 percent
of the rib. That would be a recommended range. You
might start at 30% and work from there. The stab is powerful
on the Odyssey and requires expo for best results so don't confuse
a powerful elevator as tail heavy. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Good luck</FONT></DIV>
<DIV><FONT face=Arial size=2>Mike</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=aabdu@sbcglobal.net
href="mailto:aabdu@sbcglobal.net">Anthony Abdullah</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, April 30,
2007 12:38 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion]
Odyssey CG</DIV>
<DIV><BR></DIV>
<DIV>Does anyone know where the CG should be on the
Odyssey?<BR><BR>TIA</DIV>
<DIV>Anthony</DIV>
<DIV>
<HR>
<DIV></DIV>_______________________________________________<BR>NSRCA-discussion
mailing list<BR><A
href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</A><BR><A
href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A></DIV></BLOCKQUOTE>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE><BR>
<DIV>
<HR>
<DIV></DIV>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</DIV></BLOCKQUOTE>
<DIV>
<HR>
<DIV></DIV>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</DIV></BLOCKQUOTE>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE><BR>
<DIV>
<HR>
<DIV></DIV>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</DIV></BLOCKQUOTE>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE><BR>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
<P>
<HR>
<P></P>No virus found in this incoming message.<BR>Checked by AVG Free
Edition. <BR>Version: 7.5.467 / Virus Database: 269.6.2/784 - Release Date:
5/1/2007 2:57 PM<BR></BLOCKQUOTE></BODY></HTML>