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<DIV><FONT face=Arial>
<DIV><FONT color=#0000ff size=2><SPAN
class=110414400-27112004>Keith,</SPAN></FONT></DIV>
<DIV><FONT size=2><FONT color=#0000ff><SPAN class=110414400-27112004> I
agree - well sort of. Although I <SPAN class=070341501-27112004>too
</SPAN>suffer from the philosophical problem of using computer mixing (among
others), sometimes there's nothing you can do if you didn't build the plane or
have plans etc. Ideally, the design should be flight tested by the designer
before distributing it to the market. Any bad tendencies should at least be
minimized. At least that's what you expect when you spend a lot of money on one
of the more expensive pattern ARFs. In today's age of what I call "Hurry Up,
Hurry Up, F#@! It Up" we're lucky the parts are even glued on the cheap ones.
I've had a few planes that roll couple with the rudder quite a bit. Since it's
too late to "remove" dihedral I had to "mix it out". Certainly a lot less work
to fly than the alternative of manually mixing ailerons and rudder when making
line corrections. When I do a </SPAN><FONT face=Tahoma><SPAN
class=110414400-27112004><FONT face=Arial>review for a magazine, I always
mention any bad traits or trim idiosyncrasies. I wish more guys would do this.
There's nothing worse than reading a review of "a great airplane that flies like
a pattern ship" only to find out that it just looks like a pattern ship. Luckily
the radio can save the day, but it shouldn't have to! Joe Bridi used to build
several prototypes before publishing plans or releasing a kit. His planes fly
very predictably. Some were better than others but certainly a good deal of time
was spent on the design before he felt it was ready for the public. Maybe it has
something to do with putting your name on it. Has anyone ever met Mr. "Rising
Star ARF"? I wonder if he flies
pattern...</FONT></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Tahoma><SPAN class=110414400-27112004></SPAN></FONT><FONT
color=#0000ff size=2> </FONT></DIV>
<DIV><FONT face=Tahoma><SPAN class=110414400-27112004></SPAN></FONT><FONT
size=2><FONT color=#0000ff><FONT face=Tahoma><SPAN class=110414400-27112004>John
Pavlick<BR><A href="http://www.idseng.com"
target=_blank>http://www.idseng.com</A></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Tahoma><SPAN class=110414400-27112004></SPAN></FONT> </DIV>
<DIV><FONT face=Tahoma><SPAN class=110414400-27112004></SPAN></FONT><FONT
color=#0000ff size=2> </FONT></FONT><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> Friday, November 26, 2004 7:39 PM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> Re: wing tip shape (now Knife Edge
Trimming!)<BR><BR></DIV></DIV>
<BLOCKQUOTE dir=ltr
style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"></FONT>
<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>
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