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<DIV><FONT face=Arial size=2>Hey David,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>If the model gives the cone you describe...then it
broke in pitch! If the model doesn't show the cone then it didn't break in
pitch. Just a note that if it cones it also departed the path in yaw as well.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I agree with you 1000000000% if its not a barrel,
and its not a axial roll this its a snap...we all know what the barrel looks
like...and we all know what the axial roll looks like...The snap is the only
other rotation thing the model can do in the roll axis.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>This is pretty easy to see if you think about it
this way...The only way it can show the CONE is if it had a BREAK or departure
(a break in pitch). If it never broke then it will not show the
cone!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Speed of rotation is very very dependant on lots of
factors. More rudder will cause the snap to be more violent and as a result it
can rotate very fast. More aileron will cause the snap to be tighter and still
have a higher rotation rate. More elevator will cause the model to start the
cone quicker. Not enough elevator and the typical scene is the model stalls but
only after about a 1/8-1/4 rotation. This can be seen in the snap that winds
up...where it rotates slowly then gets lightning fast when the wing finally
departs. This is usually a very unpredictable exit with the pilot missing most
of them.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Another note is a snap that describes a cone and
stays online is actually a more pure break or a better break...but sometimes the
snap police or SNAP Nazi will zero this snap. The reason is the model
stalls quicker and pitches first meaning the model doesn't jump left or
right....The ones that jump over are not quite stalled when the rudder and or
aileron is applied. If it stalls quickly like the rule book sometimes it harder
to see the stall...or the pitch but you can see its effects in the CONE for
sure. The only way it can cone is if it broke....No cone no break!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Another note to the pilot flying it. The snaps are
easiest to do at the slowest possible speed. Reason it takes less pitch or
elevator to get the wing to stall right away. This makes them stay on heading
better...The bench mark is do you have enough energy after the snap to keep
flying or is the model wallowing and falling out of the sky...or is it coming in
fast and the rotations are quick and the snaps are extremely violent...then you
might have too much speed or energy.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Troy Newman</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE dir=ltr
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=dflynt@verizon.net href="mailto:dflynt@verizon.net">David Flynt</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, August 04, 2005 9:04
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Judging Snaps</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>I have always judged snaps with a simple rule --
if it is not a barrel role, and if the tail describes a helix or cone, then
the plane must be stalled, and therefore it is a snap. I have never
downgraded because the plane is set up with a lot of aileron, so long as the
tail wags, and so long as the nose and tail describe opposing
helixes. I don't see any reference to how fast or slow the plane rolls
with regard to downgrades. To me, a pilot is free (and smart) to set up
their plane such that it loses as little heading as possible in a snap.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Am I completely mistaken on this? A
barrel roll is easy to detect. An axial roll is easy to detect. If
it is not a barrel roll, and not an axial roll, then it must be a valid snap,
even if it is subtle and the plane is not buried deeply in a snap. At
least that is my current understanding.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'll admit that I don't really understand
the degree at which the plane must "break" in the direction of
snap. Who came up with that idea? What really does that mean, and
how do you measure it? "the nose of the fuselage should show a definite
break in the direction of the snap". Ok, what is definite? At what
point exactly must the aircraft become stalled? It takes time for the
control surfaces to deflect. It does not happen instantaneously.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I think the maneuver is over described and over
analyzed. Its a "rapid autorotation in the pitch, yaw, and roll axes of
flight in a stalled wing attitude." That should be good enough to judge
it. If not, maybe use my definition of judging it.
</FONT><FONT face=Arial size=2>Until I know what a "definite break" is, that's
what I am going to do.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>David
</FONT></DIV></BLOCKQUOTE></BODY></HTML>