<!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 6.00.2900.3059" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>You could put it for 35% or 36% that would be about
the best. You won't even have to check it.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Matt L</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=drmikedds@sbcglobal.net href="mailto:drmikedds@sbcglobal.net">Dr.
Mike Harrison</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 12:56
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>I think you will find 25% to be very nose heavy,
I would opt more for 30%. This has been a great discussion regarding
CG. It is important that the pilot learn early the way to find CG
and then adjust to his personal likes.</FONT></DIV>
<DIV><FONT face=Arial size=2> Good Luck</FONT></DIV>
<DIV><FONT face=Arial size=2>Mike</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 10:50
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Odyssey
CG</DIV>
<DIV><BR></DIV>
<DIV>George,</DIV>
<DIV>That clears up everything! I guess that is why they call it mean
aerodynamic CHORD. When I go home tonight I will use both the mathematic
method and plug numbers into the calculator. I am fairly confident that they
will be very close to each other. First test flight will be this weekend
with the CG set at 25% MAC.</DIV>
<DIV> </DIV>
<DIV>Once again, thank you to everyone, you guys are awesome!</DIV>
<DIV>Anthony<BR><BR><B><I>"george w. kennie" <geobet@gis.net></I></B>
wrote:</DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="MSHTML 6.00.6000.16414" 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</BLOCKQUOTE>
<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>