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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I‘ve sometimes observed others doing
very credible snap rolls. Let’s just say mine need some help and leave it
at that . <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Snap rolls in pattern have always struck
me as counter to the graceful “ flow of flight”( more like an interruption)
that precision aerobatics is supposed to be about.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Maybe they should be excluded , after all
, we’re not 3 D ‘n.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Frank<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Ed Alt<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, October 12, 2009
4:38 PM<br>
<b><span style='font-weight:bold'>To:</span></b> NSRCA List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
Snap</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Same problem exists with vertical snaps at the end of the
box. It is harder to see, though not impossible. It comes down
to the pilot showing you the maneuver for maximum score. Just as
it's hard to discern precision at a great distance, for which there is
a downgrade, so should not being able to see a clean break be a
downgrade. <br>
<br>
Ed<br>
<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>Date: Mon, 12 Oct 2009 10:02:56
-0700<br>
From: bob@toprudder.com<br>
To: <a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a><br>
Subject: Re: [NSRCA-discussion] Snap<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>If the plane is in knife-edge flight, you are mostly
looking at the top or bottom of the plane. How can you observe a pitch break
in that instance? If the pitch break is the complete (or biggest) tell-all of
a true snap, then the maneuver schedule should be chosen to put the plane in
the best position possible to observe this criteria.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
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<br>
--- On <b><span style='font-weight:bold'>Mon, 10/12/09, Ed Alt <i><span
style='font-style:italic'><ed_alt@hotmail.com></span></i></span></b>
wrote:<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>So, in all seriousness this time, allow me to
explain what happens in the knife edge snap. Here goes:<br>
<br>
Short version: Everything works the same as a wings level snap. <br>
<br>
Longer version: The only difference is, the wing starts out completely
unloaded and rapidly transitions to being loaded due to the sudden pitch
change, and as it reaches the critical angle of attack, the same exact things
happen. The autorotation is due to a wing panel stalling, and it makes
no fundamental difference which way the airplane is pointing when you do
it. Now, you do need to perform the correct technique with the
rudder before & after to keep it flying on fuselage and propellor
thrust vector lift, lest the ground rise up and smite thy model. <br>
<br>
Ed<br>
<o:p></o:p></span></font></p>
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