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<DIV><FONT face=Arial>Correct. The airplane does NOT know the wind is
blowing. If we were moving in the same direction/velocity the wind is
moving, (thus matching the airplane direction/velocity), the airplane would have
no vector.</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=terryb@beachlers.com href="mailto:terryb@beachlers.com">Terry
Beachler</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, October 09, 2007 2:59
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Rudder</DIV>
<DIV><BR></DIV><BR>J & B<BR>Weather vane implies the wind blowing the tail
away from and the nose into the wind which would be desirable for
(self)correcting for crosswind. This would imply that an airplane on a cross
country flight would self correct into a crosswind, no crab necessary. Or the
reverse, pilot would have to hold rudder for a couple of hours on a cross
country flight. Talk about a way to induce asymmetrical leg
muscles...wow!<BR><BR>Rudder is used to point the noise into the wind i.e. to
induce crab. Full scale pilots make a small coordinated turn into the wind to
create crab angle and the desired ground track. I think I read in some pattern
stuff that pattern pilots can induce crab and it either presents better to a
judge or they can sneak the crab in a way not so easily detected by the
judge. Weathervaning would only happen on the ground with a taildragger,
usually the beginning of a ground loop. Or with the airplane on a pylon on the
vertical axis, just like a weathervane.<BR><BR>Crab angle and track apply
here. Crosswind acts upon the whole airplane in flight, not just the tail
surface. If we turn this whole situation 90 degrees and fly into a headwind
and pull up, the airplane would flop over on its back because of the greater
exposed surface of the wing area. The wing would have a greater weathervane
effect. But it does not work thataway.<BR><BR>Bob and I have been having fun
with this one for a while.<BR><BR>Terry Beachler<BR><BR>At 13:01 10/9/2007,
you wrote:<BR><BR>
<BLOCKQUOTE class=cite cite="" type="cite"><FONT face="Arial, Helvetica"
color=#0000ff>weathervane by cause of wind. If you straighten the plane out
to look vertical, the track (actual line drawn) will move with the wind and
not be vertical and be cause for a downgrade. Someone has a clip from the
rule book covering all parts of this.<BR></FONT> <BR><BR><FONT
size=2>Regards,<BR>Jason<BR><A href="http://www.jasonshulman.com/"
eudora="autourl">www.jasonshulman.com</A><BR><A
href="http://www.shulmanaviation.com/"
eudora="autourl">www.shulmanaviation.com</A><BR><A
href="http://www.composite-arf.com/"
eudora="autourl">www.composite-arf.com</A></FONT> <BR>
<DL>
<DD><FONT face=Tahoma size=2>-----Original Message-----<BR>
<DD>From:</B> nsrca-discussion-bounces@lists.nsrca.org [<A
href="mailto:nsrca-discussion-bounces@lists.nsrca.org" eudora="autourl">
mailto:nsrca-discussion-bounces@lists.nsrca.org</A>]On Behalf Of </B>Terry
Beachler<BR>
<DD>Sent:</B> Tuesday, October 09, 2007 12:53 PM<BR>
<DD>To:</B> NSRCA Mailing List<BR>
<DD>Subject:</B> Re: [NSRCA-discussion] Rudder<BR><BR></FONT>
<DD>Do you mean crab (induce by rudder) or weathervane as if the wind is
applying a force upon the tail and causing a turn toward the wind about
the vertical axis.<BR><BR>
<DD>Terryb<BR><BR>
<DD>At 12:10 10/9/2007, you wrote:<BR><BR>
<BLOCKQUOTE class=cite cite="" type="cite">
<DD><FONT face="Arial, Helvetica" color=#0000ff>Hi Bob,<BR></FONT>
<DD><BR>
<DD><FONT face="Arial, Helvetica" color=#0000ff>The airplane should
weathervane into the wind, as long as the track of the plane is straight
(track- actual line/path of the plane). <BR></FONT>
<DD><BR><BR>
<DD><FONT size=2>Regards,<BR>
<DD>Jason<BR>
<DD><A href="http://www.jasonshulman.com/"
eudora="autourl">www.jasonshulman.com</A><BR>
<DD><A href="http://www.shulmanaviation.com/"
eudora="autourl">www.shulmanaviation.com</A><BR>
<DD><A href="http://www.composite-arf.com/"
eudora="autourl">www.composite-arf.com</A></FONT>
<DL>
<DD><FONT face=Tahoma size=2>-----Original Message-----
<DD>From: nsrca-discussion-bounces@lists.nsrca.org [ <A
href="mailto:nsrca-discussion-bounces@lists.nsrca.org%5DOn"
eudora="autourl">mailto:nsrca-discussion-bounces@lists.nsrca.org]On</A>
Behalf Of Bob Wilson
<DD>Sent: Tuesday, October 09, 2007 8:53 AM
<DD>To: nsrca-discussion@lists.nsrca.org
<DD>Subject: [NSRCA-discussion] Rudder<BR><BR></FONT>
<DD>Some great ideas.
<DD>I'm going to give the 60-70% rudder expo a shot and see how it
works.<BR>
<DD>
<DD>I'd like to do the stall turns on low rate, as Jason reccommends,
but when stall turning into the wind my practice airplane will not go
vertical (on the downline) unless I have high rates (it weathervanes
slightly towards the wind). <BR>
<DD>
<DD>I also liked John Pavlick's recommendation on the two consecutive
rolls. I'm probably being too anal in coordinating rudder,
aileron and elevator because I always seem to run out of room.<BR>
<DD>
<DD>So much to learn and the damn winter is coming!<BR>
<DD>
<DD>Thanks guys,<BR>
<DD>
<DD>Bob Wilson<BR><BR></DD></DL>
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<DD>No virus found in this incoming message.<BR>
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<DD>Version: 7.5.488 / Virus Database: 269.14.6/1059 - Release Date:
10/9/2007
08:44</DD></BLOCKQUOTE><BR></DD></DL>_______________________________________________<BR>NSRCA-discussion
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href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
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