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<p class=MsoNormal><span class=EmailStyle17><font size=2 color=navy face=Arial
FAMILY=SANSSERIF><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;
font-family:Arial'>Matt -<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle17><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Yep, my
thoughts exactly – This project all came about because last summer a) I crashed
my Calypso (yeah, “old fashioned”, but a heck of a aerobatic plane), and b) out
of how much I’ve learned to dislike my H9 ARF CAP.<span style="mso-spacerun:
yes"> </span>That one I had to add 1 lb of dead batteries to the
nose.<span style="mso-spacerun: yes"> </span>I’m making sure the new one
will work out correctly!<span style="mso-spacerun: yes"> </span>Fine for
a Sunday sport flyer, horrible for anything precision.<span
style="mso-spacerun: yes"> </span>BTW – I’m using an FPE 2.4 gasser,
which replaced the YS 1.20 it used to have.<span style="mso-spacerun:
yes"> </span>After pipes, alum. hard mounts, etc. were removed and
replaced – the all up weight was the same – 48 oz of stuff for each
engine.<span style="mso-spacerun: yes"> </span>Doesn’t count the ignition
batteries….but I needed nose weight anyway!<span style="mso-spacerun:
yes"> </span>That’s why the hopes I can campaign with this as a dual
purpose plane – Pattern and IMAC.<span style="mso-spacerun: yes">
</span>Should be able to hit the 11lbs, if I’m really, really careful.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle17><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:black'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> Rcmaster199@aol.com [mailto:Rcmaster199@aol.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, May 11, 2003 10:52
AM<br>
<b><span style='font-weight:bold'>To:</span></b> tedsander@attbi.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: Design: Dihedral
Recommendation</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>In a
message dated 5/10/2003 11:54:08 PM Eastern Daylight Time, tedsander@attbi.com
writes:<br>
<br>
<br style='mso-special-character:line-break'>
<![if !supportLineBreakNewLine]><br style='mso-special-character:line-break'>
<![endif]></span></font><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:39.75pt;border:none;mso-border-left-alt:solid blue 1.5pt;
padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Subj:<b><span
style='font-weight:bold'>RE: Design: Dihedral Recommendation </span></b><br>
Date:5/10/2003 11:54:08 PM Eastern Daylight Time<br>
From:<a href="mailto:tedsander@attbi.com">tedsander@attbi.com</a><br>
Reply-to:<a href="mailto:discussion@nsrca.org">discussion@nsrca.org</a><br>
To:<a href="mailto:discussion@nsrca.org">discussion@nsrca.org</a><br>
<i><span style='font-style:italic'>Sent from the Internet </span></i><br>
<br>
<br>
<br>
Thanks George - FYI, I'm anticipating ending up with about 3.5 degrees of<br>
right thrust. I'll start with 3, and adjust from there. Down will
start at<br>
zero, and be set as flight testing dictates. Gas engine, big prop
(20x10).<br>
Vert. Stab/Rudder will be counterbalanced. Planform isn't too far
different<br>
than on a Focus.</span></font><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'><br>
<br>
Ted,<br>
<br>
You want a small amount of downthrust if you want the model to track true
vertical up lines. For this size model, about 11/2 to 2 degrees down is a good
place to start. If the model is going to be used mostly as a fun flyer,
different story. It matters alot less.<br>
<br>
Your right thrust is also about right for the large gassie<br>
<br>
One other consideration is wing placement. The gassie is heavier than alkies,
so you should probably start with a foreward wing location, to keep the CG from
needing too much tail weight, even if you are planning to use elevator servos
in the tail. At least 1" further forward to start. If you do move the
wing, then the down and right thrusts become more important. Think shorter
moment<br>
<br>
Matt K</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>
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