<!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 6.00.6000.16441" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2>The judges being behind the pilot... if the model is past 60
deg to the judge, its past 60 deg to the pilot. (except potentially one edge of
the box if the judge is off to the opposite side...)</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>The further back the judges are... the more ADDED SPACE they
will perceive as being inside the 60 deg box. The judges are tasked with
locating the box limits in relation to the pilot... not some poles that are not
at the 175 meter maximum box limit line. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>If the poles are just 40 feet from the pilot, they are
only good as references for the pilot, not the judges. (even if the judges
are under 5 ft from the pilot) If the judge wants to try to use them
as reference... he has to allow for the plane to appear to have passed the pole
by however many wingspans he is behind the pilot. (which errs slightly in favor
of the pilot)</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>If you attend a judge's training seminar... there are
guidelines about judge positioning. The judge positioning is supposed to
be such that thier perspective will be similar to the perspective of the
pilot. The judge being 15 to 20 ft back isn't unreasonable as its a small
fracton (appx 1/35 to 1/40) of the average distance from pilot to
airplane. The difference in "parallax" between what the pilot sees and
what the judge sees will be very small. (with the judge having LESS parallax if
he's straight behind the pilot)</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>The judge's chair position DOES NOT define the box
limits. The pilot position (which is assigned and marked) DOES. All
of the field markings are relative to the pilot position(s).</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>The CD can assign the safety/zero line as the runway edge if
desired... Setting it behind the pilots is something I would not ever
recommend. Since the pilots are typically stationed fairly close to the
runway, having the edge close to the pilot be the safety line is usually
reasonable.</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=mjfrederick@cox.net href="mailto:mjfrederick@cox.net">Matthew
Frederick</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-discussion@lists.nsrca.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, May 12, 2007 1:29
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Judges'
Positioning, Zero Lines,and Box Definition</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>OK, this forum has been too quiet lately, so
let's get some controversy going! This comment/question is mainly directed to
Don Ramsey, but I would appreciate everyone's opinion. The good thing is, Don
was at the contest where what I'm about to describe happened. What I'm talking
about here is the positioning of judges behind the pilot. Under most
circumstances the judges are positioned maybe 3-5 feet behind the pilot with
each judge's seat placed on (or very close to) one of the 60-degree
lines. Now, at a contest I attended last week the judges apparently decided it
was too hot out there on the actual flight line, and they moved their chairs
about 15-20 feet behind the pilot in the shade of the shed at this particular
field. My question is, should this be something that is allowed since the
judges' chairs define the zero line of the flight line (and moving it back
this far puts spectators in danger), and also because it gives the judges an
even more skewed view of the 60-degree lines than they already have? I bring
this up partly because of what Don wrote in this month's K-Factor, but also
because I was gigged for busting the box by these "displaced" (in Louisiana we
call them refugees) judges when in fact, I knew I was close to the edge,
but since I was actually standing on the line, I knew I didn't bust it. As a
pilot I should not have to adjust the size of the box that I'm permitted to
fly in just so the judges can be more comfortable (granted, comfort in the
heat and humidity of Louisiana is relative). I didn't bring it up at the
contest because by the time it bit me, it was too late to complain. In the
future, however, I think there need to be rules regarding the positioning of
judges if there aren't already, and if there are rules, let's bring them to
light and enforce them, and you can bet I'll refuse to fly before judges that
are that far behind me. Then again, I also think the close edge of the runway
should be the zero line on maneuvers, not the judges' chairs. I did a little
(ok, a lot) of math to figure out how much box a pilot would be
missing out on with the judges postitioned 15 feet behind him. Using
approximated numbers from the contest in question I calculated that if the
poles are 40 feet out from the pilot, and the judges are 15 feet behind the
pilot, the box size at 150 meters (which is 259.81m) based on the judges'
point of view is reduced by 232.61 feet (70.9 m), or 25.2%! This would
have been even greater if the poles were closer in or the judges were further
back.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Matt</FONT></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
<P>
<HR>
<P></P>No virus found in this incoming message.<BR>Checked by AVG Free
Edition. <BR>Version: 7.5.467 / Virus Database: 269.6.8/797 - Release Date:
5/10/2007 5:10 PM<BR></BLOCKQUOTE></BODY></HTML>