<!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 6.00.2800.1458" name=GENERATOR>
<STYLE>@font-face {
font-family: Tahoma;
}
@page Section1 {size: 8.5in 11.0in; margin: 1.0in 1.25in 1.0in 1.25in; }
P.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman"
}
LI.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman"
}
DIV.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman"
}
A:link {
COLOR: blue; TEXT-DECORATION: underline
}
SPAN.MsoHyperlink {
COLOR: blue; TEXT-DECORATION: underline
}
A:visited {
COLOR: blue; TEXT-DECORATION: underline
}
SPAN.MsoHyperlinkFollowed {
COLOR: blue; TEXT-DECORATION: underline
}
SPAN.EmailStyle17 {
COLOR: navy; FONT-FAMILY: Arial
}
DIV.Section1 {
page: Section1
}
</STYLE>
</HEAD>
<BODY lang=EN-US id=role_body bottomMargin=7 vLink=blue link=blue
bgColor=#ffffff leftMargin=7 topMargin=7 rightMargin=7>
<DIV><FONT face=Arial size=2>OK, now I'll rant about the mixing issue. I
understand that the "ideal" plane should not require any mixing rudder to
elevator or ailerons. But if your plane has those bad tendencies I say MIX THEM
OUT! Jeeze, why do you want to make your job harder based on some philosophical
problem with using computer mixing? Hey, does the stealth bomber have any
mixing? How awful if it does, we should turn that off and let the pilots deal
with it manually!!!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>OK, I know that's ridiculous, but my point is that
I think it's silly to avoid mixing just because the plane "shouldn't" need
it.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Some will argue that any mixing you do to correct
one problem will cause problems in other conditions. In some cases this may be
true, and I certainly wouldn't leave the plane completely out of alignment and
try to compensate for a crooked plane with mixes, but a tuck here, a nip
there... wait that's the cosmetic surgery rant... what I mean is if your plane
tucks, pulls or rolls with rudder... mix it out! Then buy a new plane in hopes
that it will be perfect, then when it's not, put in the mixes again and never
admit it ;-)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Keith Black</FONT></DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tedsander@comcast.net href="mailto:tedsander@comcast.net">Ted
Sander</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> Friday, November 26, 2004 6:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: wing tip shape (now Knife
Edge Trimming!)</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT id=role_document face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Geez, this subject
just keeps morphing! Matt caused it! <grin></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> I swept away
the wreckage of my Funtana 90 to work on my new wing today. The
story was:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">2 ½ flights on this
new ARF this past summer. Generally very nice flyer, except there was
modest roll and a tremendous amount of down (wheels) pitch with rudder.
Flutter got me coming out of a stall turn (horns were a tad too short as
compared to servo arms), stripped both aileron servos. Cut the throttle,
and tried to make a flat left turn back to the field. Plane pitched down
radically, I pulled up in reaction, you can guess the rest……</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I knew I should have
mixed in a lot of up to rudder. But what would have been valid
mechanical changes to trim out the pitching? Lower the stab? Play
with incidence (verticals were pretty straight)? I might even buy
another, and be more conservative in setup – but only if there are some ways
to tackle the pitching problem beyond mixing. Any
advice?</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Ted</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<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>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of
</SPAN></B>Rcmaster199@aol.com<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> </SPAN></FONT><FONT face=Tahoma
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Friday, November 26,
2004</SPAN></FONT><FONT face=Tahoma size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> </SPAN></FONT><FONT face=Tahoma
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">12:28
PM</SPAN></FONT><FONT face=Tahoma size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> </SPAN></FONT><FONT face=Tahoma
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">discussion@nsrca.org</SPAN></FONT><FONT
face=Tahoma size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: wing tip shape (now surface
hinging)</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Arial">NO!!!
REALLY???? GEEZ I DIDN'T KNOW THAT (jus' kiddin' Keith, and pokin' a little
fun)</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Arial">With
the kind of geewhiz programmability available nowadays, too many of us have
become a little complacent and use the electronic fixes as cure alls. I am old
school and prefer to make the mechanical set-up as sound as possible first,
then use the radio to trim the mechanical set-up if needed. If it needs
more than a few percent electronic fixing, I usually re-do the mechanical
set-up in my pattern models. I do not subscribe to electronic fixes for
everything! (Sport planes are another matter)</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Arial">Having
to electronically fix knife edge flight for example, just frosts me,
particularly when a kit costs over $1000 in some cases. </SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=black
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Arial">MattK</SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV></BLOCKQUOTE></BODY></HTML>