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<META content="Microsoft Word 10" name=Originator><LINK href="cid:filelist.xml@01C50F5B.B91C3000" rel=File-List><o:SmartTagType name="PersonName" namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:SmartTagType><!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:DoNotRelyOnCSS/> </o:OfficeDocumentSettings></xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:SpellingState>Clean</w:SpellingState> <w:DocumentKind>DocumentEmail</w:DocumentKind> <w:EnvelopeVis/> <w:Compatibility> <w:ApplyBreakingRules/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument></xml><![endif]--><!--[if !mso]></HEAD><BODY lang=EN-US style="tab-interval: .5in" vLink=blue link=blue bgColor=white><DIV><SPAN class=627571517-10022005><FONT face=Arial size=2>There is some effect by pushrod length, when the servo arm and control horn are not in the same plane, or the servo output arm and control horn effective length are not exactly the same even when they are in the same plane. As the servo arm moves, it not only moves the pushrod fore and aft, call it the x-axis, it also displaces it side to side, in the y axis. So the movement of the output arm of the servo is not all translated into fore/aft movement. The shorter the rod, the more the angle of the rod changes, and vice versa. Is it a big effect, except with extremely short pushrods? No. But there is some effect.</FONT></SPAN></DIV><DIV> </DIV><DIV> </DIV><DIV align=left><FONT face=Arial size=2>Jon Lowe</FONT></DIV><BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV></DIV> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> discussion-request@nsrca.org [mailto:discussion-request@nsrca.org] <B>On Behalf Of </B>Keith Black<BR><B>Sent:</B> Thursday, February 10, 2005 11:09 AM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Re: Notes to Self 3<BR><BR></FONT></DIV> <DIV><FONT face=Arial size=2>I don't see that the length of the pushrod has anything to do with it, only the lengths of the control arms relative to each other.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>BTW, I tend to agree with Jim Oddino, our servo arms/wheels are rarely the same size as our control surface arms. In fact, with our use we need only 10-15 degrees (30 degrees in both directions) throws and therefore we need smaller servo arms to get close the 100% range of motion of the servo. If the servo arm and control surface arm are the same length and the entire range of the servo is used then we would have throws equal to the degrees that the servo can turn (I'm guessing about 70 degrees).</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Keith Black</FONT></DIV> <BLOCKQUOTE dir=ltr 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=jonlowe@aol.com href="mailto:jonlowe@aol.com">Jon Lowe</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, February 10, 2005 10:51 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Notes to Self 3</DIV> <DIV><BR></DIV> <DIV><SPAN class=489484616-10022005><FONT face=Arial size=2>All other things being equal, the plane they operate in makes no difference, other than some relatively minor effects of the angular relationship of the pushrod to the output arm and control arm. The longer the pushrod, the less those effects will be.</FONT></SPAN></DIV> <DIV> </DIV> <DIV><SPAN class=489484616-10022005><FONT face=Arial size=2>I haven't had this much fun since my mechanics class in college too many years ago to count!</FONT></SPAN></DIV><!-- Converted from text/rtf format -->
<P><SPAN lang=en-us><FONT face=Arial size=2>Jon A. Lowe</FONT></SPAN> </P>
<P><FONT face=Arial size=2></FONT><BR> </P>
<P> </P>
<P><FONT face=Tahoma size=2><FONT face=Arial></FONT>-----Original
Message-----<BR><B>From:</B> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org] <B>On Behalf Of
</B>spbyrum<BR><B>Sent:</B> Thursday, February 10, 2005 10:32
AM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> RE: Notes to Self
3<BR><BR></P></FONT>
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<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: Arial">If I’m following
this correctly, putting the servo on its side so that servo arm and
control horn move in the same plane makes this simpler.<SPAN style="mso-spacerun: yes"> </SPAN>As the servo arm rotates and
becomes shorter and less effective the control horn becomes shorter and
more effective.<SPAN style="mso-spacerun: yes"> </SPAN>If they were
the same length to begin with, the effects should cancel each other and we
get linear movement.<SPAN style="mso-spacerun: yes">
</SPAN>Right?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P><FONT face="Times New Roman" color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; mso-no-proof: yes">Steve Byrum
</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original
Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B>
</SPAN></FONT><st1:PersonName><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">discussion-request@nsrca.org</SPAN></FONT></st1:PersonName><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
[mailto:</SPAN></FONT><st1:PersonName><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">discussion-request@nsrca.org</SPAN></FONT></st1:PersonName><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">]
<B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Jon
Lowe<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thursday,
February 10, 2005 10:18 AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
</SPAN></FONT><st1:PersonName><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">discussion@nsrca.org</SPAN></FONT></st1:PersonName><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: Notes to Self
3</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">What he is saying
is this: As the servo arm rotates from 90 degrees, the effective
length of the servo arm gets shorter, meaning that for each
incremental degree of rotation of the servo arm from 90 degrees, you
get less incremental movement of the pushrod. Therefore the control
is inherently more sensitive around neutral than it is at the ends of the
servo throw, assuming linearity in the rest of the system. Expo can
be used to counter this natural
tendency.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">HOWEVER, the
effective length of the surface control horn also gets shorter as the
surface moves from neutral, increasing movement with each incremental
movement of the pushrod. So it is a race between
decreasing effectiveness of the servo output arm vs. increasing
effectiveness of the control horn. Then you get into non-linearity
of the aerodynamic surface effectiveness itself as it moves from neutral,
and you can get confused real quick. You are dealing with several
areas of non-linearity, and trying to compromise between them
all.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jon
Lowe</SPAN></FONT> <o:p></o:p></P></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 0.5in; MARGIN-RIGHT: 0in; mso-margin-top-alt: 0in"><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original
Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]
<B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Tim
Taylor<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thursday,
February 10, 2005 8:28 AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> discussion@nsrca.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [SPAM] Re: Notes to Self
3</SPAN></FONT><o:p></o:p></P>
<BLOCKQUOTE style="MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt; MARGIN-RIGHT: 0in">
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Troy let me get
this straight in my mind, You said</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">"The reason is
the servo wheel is round and its Y axis distance changes for each degree
of travel as the servo rotates around the back
side."</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Now It took me
a few readings and some pondering to understand what you said. It
doesn't matter what type arm you use,correct so far? What I take this to
mean is as the servo arm moves the point at which the servo is connected
to the driving rod and the center arm screw is at it's farthest point at
90 degrees to the servo case (assuming the servo case is 90 degrees to
the hinge line) as it moves forward or backwards the
distance between the pivot points decreases with each degree of
rotation. Correct?</SPAN></FONT><o:p></o:p></P></DIV>
<BLOCKQUOTE style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: black 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">-----
Original Message ----- <o:p></o:p></SPAN></FONT></P></DIV>
<DIV style="font-color: black">
<P class=MsoNormal style="BACKGROUND: #e4e4e4; MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
<A title=troy_newman@msn.com href="mailto:troy_newman@msn.com">Troy A.
Newman</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
<A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
Friday, February 11, 2005 11:05 PM<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
[SPAM] Re: Notes to Self 3<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">8103, 9303
and 10X expo are the same Positive is softer and Negative is harder
feel. I'm writing an article for the KF right now that talks about
Expo and how to use it. When to use it. And the effects of it.
Sometimes a reverse expo (faster response) at center can be of
benefit. We have played with this in snaps and found that it has some
promise...Lots of regular expo on the ailerons and rudder and reverse
expo on the elevator...The result is the model will pitch harder on
entry before the rotations.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Another thing
depending on the radio it takes 20-30% expo just to get the output to
be linear. The reason is the servo wheel is round and its Y axis
distance changes for each degree of travel as the servo rotates around
the back side.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">This is March
KF stuff so I won't elaborate here but I have some data to back up my
words. </SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Troy</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<BLOCKQUOTE style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: black 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">-----
Original Message ----- <o:p></o:p></SPAN></FONT></P></DIV>
<DIV style="font-color: black">
<P class=MsoNormal style="BACKGROUND: #e4e4e4; MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
<A title=tncbrown@charter.net href="mailto:tncbrown@charter.net">T&C Brown</A>
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
<A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
Wednesday, February 09, 2005 8:42
PM<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
Re: Notes to Self 3<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=2><SPAN style="FONT-SIZE: 10pt">That is
odd Tim. I wonder why JR decided after all these years to
change from a pos. setting to a neg. for a "softer feel".
I'm a firm believer in "If it ain't broke, don't fix
it" </SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=2><SPAN style="FONT-SIZE: 10pt">I made
the same mistake a few years back when I switched from a Futaba 7UAP
to a JR 8103 and inadvertently put neg. expo in the 8103. Talk
about pucker factor for a few
minutes. </SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=2><SPAN style="FONT-SIZE: 10pt">Maybe Fu-tuh-boo-boo is rubbing off on
JR! (BG)</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=2><SPAN style="FONT-SIZE: 10pt">T-Bone</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<BLOCKQUOTE style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: black 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">-----
Original Message ----- <o:p></o:p></SPAN></FONT></P></DIV>
<DIV style="font-color: black">
<P class=MsoNormal style="BACKGROUND: #e4e4e4; MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=twtaylor@ftc-i.net href="mailto:twtaylor@ftc-i.net">Tim
Taylor</A> <o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Wednesday, February
09, 2005 12:18 PM<o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Re: Notes to Self
3<o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">That's
the whole point in the story Ron, I ASSUMED I was right and didn't
NEED to RTFB and could have screwed up big time. I've been flying
JR radios for years but always a PCM10 of some sort, this 9303 is
a new radio for me. What I did was get in a hurry, I wanted
to fly and trim this airplane and didn't do what I should have
done first. I hope my not so comical errors will help someone else
from making the same mistake I
did.</SPAN></FONT><o:p></o:p></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">-----
Original Message ----- <o:p></o:p></SPAN></FONT></P></DIV>
<DIV style="font-color: black">
<P class=MsoNormal style="BACKGROUND: #e4e4e4; MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=vanputte@cox.net href="mailto:vanputte@cox.net">Ron Van
Putte</A> <o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Wednesday, February
09, 2005 12:01 PM<o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Re: Notes to Self
3<o:p></o:p></SPAN></FONT></P></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 0.5in; MARGIN-RIGHT: 0in; mso-margin-top-alt: 0in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><BR>On Feb 9, 2005, at 8:28 AM, Tim
Taylor wrote:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><?fontfamily><?param Arial><?smaller>As
our Continuing story unfolds........<BR><?/smaller><?/fontfamily> <BR><?fontfamily><?param Arial><?smaller>Timmy
T is looking out of the shop door and sees that the weather is
just perfect for some trim
flights<BR><?/smaller><?/fontfamily> <BR><?fontfamily><?param Arial><?smaller>So
we pack up the trailer and go for some trim flights. Recalling
the last flights all control throws too sensitive so
I dial in less rates on low and put high rates to what low
was before. Ok time to dial in some Expo on all surfaces, pop up
the screen on the 9303 and dial in 30%. Ok time to fly. Airplane
seems pretty stable now but the controls feel a bit "Twitchy"
hmmm no problem continue the flight land and have a look. Ok
maybe I didn't get enough expo dialed in so add some more. Next
flight about the same but the controls seem a bit more "twicthy"
hmmm something's not right here. Ok times up for flying for
today pack up and head home. On the way home I get to thinking
about the last flight and how the airplane changed the "feel"
after I added the expo. Ok I get to wondering where the heck did
I put the book for this new radio, Ok lets review the book on
page A20 is the expo directions, it states "NOTE: Use only
positive percentages unless there is a distinct need to do
otherwise". Hmmmmmm that don't sound right! Turn the transmitter
on and look at the expo I've got dialed into the radio,
*&%^$*&#)(#&%^%)@(_*&_(^# Everything is
done to the NEGATIVE !!!!!! No damn wonder! So "Note to self"
today's lesson is READ THE FRIGGIN BOOK !!!!!!!!!<BR><?/smaller><?/fontfamily> <BR><?fontfamily><?param Arial><?smaller>Ok
while I'm at it lets program a little down elevator trim
at low idle, I wonder what page that is on in the
book.................. "Fade to Black as Timmy T reaches for the
book."<o:p></o:p></SPAN></FONT></P><?/smaller><?/fontfamily>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><BR>My guess is that he's using a JR
radio, because negative exponential is what you want on a Futaba
transmitter to soften the control response. That's why
well-meaning people at the field need to find out what brand of
transmitter the guy being counseled has before telling him how
to change the expo. <BR><BR>I had a similar situation when I was
helping a novice trim out his airplane. After I flew a trim
flight for him, I told him he needed 50 - 60% exponential on
elevator and aileron. I asked him if he knew how to do that and
he said that he did. The airplane was a handful on the
subsequent flight, because he put in the wrong expo!<BR><BR>Ron
Van
Putte<o:p></o:p></SPAN></FONT></P></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>