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<DIV>Hmm, I think I understand how to judge a snap based on the description on
RCA-20 except for this: It states "Large deviations from the flight path,
indicative of a delayed stall, are to be downgraded using the 1 point per
15-degree rule for each axis of the excursion before the stall." Then it
follows with an example of a dual-downgrade due to a 15 degree nose up pitch and
15 degree roll before the wings stall. </DIV>
<DIV> </DIV>
<DIV>OK, there's two things that confuse me with this. One is that it
begins by stating that a deviation in the flight path can indicate a delayed
stall. I buy that, but then the example seems to muddy it. The
pitch-up angle shouldn't be a criteria for downgrade, the degrees of deviation
from the correct flight path before the stall ought to be, right? I think I
understand the intent, but the example doesn't match what I think that intent
is.</DIV>
<DIV> </DIV>
<DIV>The 2nd confusing thing is similar to the first, i.e., looking at the angle
of bank achieved before the break. Alright, on the one hand, it ought to
be a downgrade that the model rolled before the stall, but the statement
preceding the example talked in terms of flight path, not angle of bank.
Again, I think I understand that the intent is to apply 15% / degree of
deviation from the flight path, but the example really seems to be referring to
the bank angle alone. </DIV>
<DIV> </DIV>
<DIV>Can someone explain this better? I think what it all means is that I
should downgrade for as many as 3 things at that moment in time. One
is that the flight path may have departed excessively in the Y axis before the
stall/autorotation, another is that it may have deviated excessively in the Z
axis before the stall/autorotation, another is that the model may have rolled
before the stall/autorotation. But I don't see how I can possibly
downgrade for excessive pitch attitude before the stall/autorotation, because it
is the pitch break that initiates the whole chain of events. That piece
has to happen, as does some yawing motion, which is the other essential
ingredient for autorotation. </DIV>
<DIV> </DIV>
<DIV>So if I've got this right, I use judgment to allow for a little bit of a
flight path departure in the Y axis (being referred to as pitch in the rules)
and also for a bit of path departure in the Z axis due to the yawing of the
model to initiate autorotation. No X-axis departure comes into the picture
unless we have a cross box line with a snap someday. Comments?</DIV>
<DIV> </DIV>
<DIV>Ed</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=mailto:jshulman@cfl.rr.com
href="mailto:jshulman@cfl.rr.com">JShulman</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> Tuesday, December 12, 2006 11:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] 2007
Pattern Rules posted by AMA</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=450225603-13122006><FONT color=#0000ff size=3>I guess we
can't zero snaps for not having a pitch break...lol. RCA-20, right
side.</FONT></SPAN></DIV>
<DIV><SPAN class=450225603-13122006><FONT color=#0000ff
size=3></FONT></SPAN> </DIV>
<DIV><SPAN class=450225603-13122006><FONT color=#0000ff size=3>And the landing
zone is essentially a 30m box. But it is not a 0 if you don't land in it, just
a downgrade. But don't go knocking parts off of it, or it'll become a 0.
RCA-26</FONT></SPAN></DIV>
<DIV> </DIV>
<P><FONT size=2>Regards,<BR>Jason<BR><A title=http://www.jasonshulman.com/
href="http://www.jasonshulman.com">www.jasonshulman.com</A><BR><A
title=http://www.shulmanaviation.com/
href="http://www.shulmanaviation.com">www.shulmanaviation.com</A><BR><A
title=http://www.composite-arf.com/
href="http://www.composite-arf.com">www.composite-arf.com</A></FONT> </P>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of
</B>JonLowe@aol.com<BR><B>Sent:</B> Tuesday, December 12, 2006 10:47
PM<BR><B>To:</B> nsrca-discussion@lists.nsrca.org<BR><B>Subject:</B>
[NSRCA-discussion] 2007 Pattern Rules posted by AMA<BR><BR></FONT></DIV>
<DIV>Just noticed the 2007 Pattern rules have been posted by AMA. They
weren't there yesterday.</DIV>
<DIV> </DIV>
<DIV><A
title=http://www.modelaircraft.org/comp/0708rulebook/RC%20Aerobatics.pdf
href="http://www.modelaircraft.org/comp/0708rulebook/RC%20Aerobatics.pdf">http://www.modelaircraft.org/comp/0708rulebook/RC%20Aerobatics.pdf</A></DIV>
<DIV> </DIV>
<DIV><FONT size=2 PTSIZE="10">Jon Lowe<BR></FONT></DIV></BLOCKQUOTE>
<P>
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