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<DIV>Jim:</DIV>
<DIV>The wing is stalled when the critical angle of attack is reached, which can
happen at any airspeed, starting from any flight attitude. This is most
easily seen & felt if you go up in a light plane and gradually work the yoke
back, increasing the angle of attack and holding altitude as airspeed bleeds off
before the stall. This can go on for many seconds. The total lift is
staying the same before the stall, but the wing doesn't stall until the angle of
attack gradually increases to the point that the critical AOA is reached.
In that example, the critical AOA will be reached at a lower airspeed due
than if the pilot had done an accelerated stall by yanking the yoke rapidly
back.</DIV>
<DIV>Ed</DIV>
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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=JOddino@socal.rr.com href="mailto:JOddino@socal.rr.com">JOddino</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> Wednesday, April 14, 2004 1:15
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Snaps</DIV>
<DIV><BR></DIV>
<DIV>How do you stall a wing that is not producing any lift, as in the case
when the plane is on a vertical up or down line?</DIV>
<DIV>My definnition of stall is when an increase in angle of attack does not
produce an increase in lift. Another might be when the lift does not
exceed the weight. I've got to believe we know a snap when we see it and
we ought to quit trying to describe it in words.</DIV>
<DIV>Jim</DIV>
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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=Patternrules@aol.com
href="mailto:Patternrules@aol.com">Patternrules@aol.com</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> Tuesday, April 13, 2004 6:13
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Snaps</DIV>
<DIV><BR></DIV>
<DIV>
<DIV>In a message dated 4/13/2004 8:06:56 PM US Eastern Standard Time, <A
href="mailto:rcsteve@tcrcm.org">rcsteve@tcrcm.org</A> writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><STRONG> Don't
stop reading as so many do, this is the next
sentence.</STRONG></BLOCKQUOTE></DIV>
<DIV><STRONG> </STRONG></DIV>
<DIV><STRONG> 1. Since the maneuver is defined as a stall
maneuver<BR>(initiated by a rapid stall of the wing induced<BR>by a change
in pitch attitude), the nose of the<BR>fuselage should show a definite break
from the<BR>flight path in the direction of the snap (positive<BR>or
negative) while the track closely maintains<BR>the flight
path.<BR> </STRONG></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><FONT lang=0 face="Arial Baltic" size=2 FAMILY="SANSSERIF"
PTSIZE="10"><B><I>Steve
Maxwell</B></I></FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>