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<DIV><FONT face=Arial>Yeah, Ken. Especially if the wind is blowing
IN.</FONT></DIV>
<DIV><FONT face=Arial>G. </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=mrandmrst@comcast.net href="mailto:mrandmrst@comcast.net">Ken
Thompson</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, April 10, 2007 7:36
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] APPARENT
GEOMETRY (PARALLAXED VIEW)</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial>Even vertical lines will appear to fall away from you,
or so I've been told...mine aren't that straight to begin with...</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=ed_alt@hotmail.com href="mailto:ed_alt@hotmail.com">Ed Alt</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, April 10, 2007 6:04
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
APPARENT GEOMETRY (PARALLAXED VIEW)</DIV>
<DIV><BR></DIV>
<DIV>And all the lines will bend and not appear straight, Hey, I do
that already!</DIV>
<DIV> </DIV>
<DIV>Ed</DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=mailto:fhhuber@clearwire.net
href="mailto:fhhuber@clearwire.net">Fred Huber</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=mailto: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> Monday, April 09, 2007 10:59
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
APPARENT GEOMETRY (PARALLAXED VIEW)</DIV>
<DIV><BR></DIV>
<DIV><FONT size=2>The responsibility of the pilot s to PERFORM the corret
geometry despite the parallax view.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>The responsibility of the judge is to learn how the
parallax will make the correctly flown maneuver look.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>About the only way I can think of to show the effects of
parallax on a correctly flown turnaround maneuver would be to film it from
as close to perpendicular to the flight path as possible, and at the
judges' location at the same time. then play the tapes sumultaneously at a
judging seminar.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>At the appx 45 to 55 deg observation angle of the judges
station, a 45 deg up/down line (half cuban) would appear steeper than what
is actually being performed. If it looks like a 45 from the judge's
station (holding up a 9th gradeer's geometry class triangle), its too
shallow. The appearance of 60 deg (same method) would be closer to
actually being the 45 deg line.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Note that if the pilot doesn't make use of the full box,
the parallax will be reduced... and that's not downgradeable.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Verticals should still look vertical.</FONT></DIV>
<BLOCKQUOTE
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=mailto:rcmaster199@aol.com
href="mailto:rcmaster199@aol.com">rcmaster199@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=mailto:nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 09, 2007 10:11
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion]
APPARENT GEOMETRY (PARALLAXED VIEW)</DIV>
<DIV><BR></DIV>
<DIV>A question has been posted from an IMAC gentleman (who is
trying to write better IMAC rules) as to how Pattern people fly and
judge skewed appearance of maneuvers at box ends or in center when tall
maneuvers (Hourglass, Vert Sq 8, Rolling Ess, etc) are involved. </DIV>
<DIV> </DIV>
<DIV>Some of us have searched the book and found no wording written that
describes what the pilots' responsibilities and the judges'
responsibilities are in the performance of the skewed apparent geometry.
There is a statement in the Judges Training tape in regard to end
maneuvers.... that these will appear different even when accurately
flown. The oness is essentially on the judges to know how the True
Geometry should appear when flown at an angle to the eye, and must not
downgrade for Apparent or Parallaxed appearance difference.</DIV>
<DIV> </DIV>
<DIV>Spoke with Don about this earlier today and we decided to present
the question to the group and get some conversation going. We should be
explicit in the book regarding how such Apparent Geometry should be
treated....ie- what is the pilot's responsibility and what is the
judge's. Description improvements could be written over the next couple
rule cycles.</DIV>
<DIV> </DIV>
<DIV>The pilot's responsibility may appear easy.... they simply need to
fly precise geometry per the book. True enough, BUT.....consider what is
actually flown, especially by the top guys, and what scores well. These
are not necessarily as precise as one might think. The better pilots
tend to fly purposely flawed maneuvers that give the impression of
precision. </DIV>
<DIV> </DIV>
<DIV>MattK</DIV>
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