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<DIV><FONT face=Arial size=2>Solutions are hard to come by. I attended the
Kansas contest this year and they have a unique situation where they can run the
two flight lines almost perpendicular to each other. The pilot stations
are about 50 yards apart, but we pit between them and it isn't bad at all.
I expected the interferance factor to be negligible, but that wasn't the
case. The two flight planes were not independent. They Kindof made a
"tee", but the overlap was only a little bit. Anyway, two planes in the
same corners of the box traveling at right angles to each other felt a lot more
dangerous than planes that fly in formation. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I think its like traveling down the highway with
traffic changing lanes but everyone is going the same way, vs being alone on the
highway but having a cross road where people occasionally drive straight across
your path without stopping. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>After this experience I began to think that the
next best solution is to keep the 2 lines parallel, but put one pilot station 10
yards behind the other (but use the same runway). This offsets the 150m
plane so the better the pilot the less the danger.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thoughts?</FONT></DIV>
<DIV><FONT face=Arial size=2>-_Lance</FONT></DIV>
<DIV> </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=tkeithblack@gmail.com href="mailto:tkeithblack@gmail.com">Keith
Black</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> Sunday, December 17, 2006 12:30
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Competition question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Years ago the list had a discussion on these
percentages (check the archives), then I had two mid-airs in the span of four
contests. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'd say in the 4 1/2 years I've been going to
contests about 50% of the contests have had mid-airs, sometimes multiple
mid-airs. Sometimes both planes lost, sometimes planes were saved. To me
that's a huge percentage. When I leave a contest with no
crashed/mid-aired planes these days I feel we were very
lucky. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Still, if you asked me would I rather risk a
mid-air or fly only three flights I'd go with the mid-air risk to get in the
six flights. After all, we're here to fly, not for static
displays.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Keith Black</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=amad2terry@juno.com href="mailto:amad2terry@juno.com">Adrien L
Terrenoire</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>Cc:</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, December 16, 2006 6:48
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Competition question</DIV>
<DIV><BR></DIV>
<DIV>yes, the risk seems high, but I have been attending contests since
1984, about 4 to 5 a year, and I can remember just 5 or 6 midairs, and
2 of them were at the Nats. For several years our club had so many entrys
that we ran THREE flight lines, and never had a mid-air. Yes, it is terrible
to lose one of our treasures, but I don't think too many of us would be
happy making our weekend committment and getting to fly just 2 or 3 rounds.
That would sure deter me from traveling more than an hour or two. In
reality, I think we have a greater risk of loss just by sheer number of
flights we put on in flying practice. It might be interesting to see just
what the odds are! How many contests are held each year? How many rounds
each contest? How many mid-airs during the course of a season?</DIV>
<DIV>Then compare that to the average number of flights we get on each of
our own airframes before it's hidden number comes up!</DIV>
<DIV> </DIV>
<DIV>Terry T.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>On Sat, 16 Dec 2006 18:17:40 -0600 "R. LIPRIE" <<A
href="mailto:RLIPRIE@centurytel.net">RLIPRIE@centurytel.net</A>>
writes:</DIV>
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<DIV><FONT face=Arial size=2>Look I would like to ask. Just out of
own curiousness why do pattern contest make two airplanes fly at the
same time.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I may be wrong. But it seems like it
skyrockets the chances of a midair. Just wanted to
ask.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Matthew Liprie</FONT></DIV>
<DIV> </DIV></BLOCKQUOTE>
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