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<DIV><FONT face=Arial>You are correct Georgie, that is my most serious
flaw...</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=geobet@gis.net href="mailto:geobet@gis.net">george w. kennie</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 4:53
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] APPARENT
GEOMETRY (PARALLAXED VIEW)</DIV>
<DIV><BR></DIV>
<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>
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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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