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<DIV><FONT size=2 face=Arial>Did you not read the essay by Jerry Budd a few
months ago? Verified by Ron van Putte. Both are qualified
aerodynamicists. I have done hours of studies on snap rolls and anallyzed
them in slow motion, and they in no way fulfill the qualifications presently in
the rule books.</FONT></DIV>
<DIV><FONT size=2 face=Arial>The rules need rewording.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Bill Glaze</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=khoard@gmail.com href="mailto:khoard@gmail.com">Keith Hoard</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, February 27, 2010 11:22
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] SNAPS !
AGAIN !</DIV>
<DIV><BR></DIV>Why would you let something as trivial as mathematics (or
physics) get in your way?<BR><BR>
<DIV class=gmail_quote>On Sat, Feb 27, 2010 at 8:21 PM, Ron Van Putte <SPAN
dir=ltr><<A href="mailto:vanputte@cox.net">vanputte@cox.net</A>></SPAN>
wrote:<BR>
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class=gmail_quote>Oh my! I hope John realizes what he's stepped in
here.<BR><BR>Ron<BR><BR>On Feb 27, 2010, at 9:36 AM, John Fuqua
wrote:<BR><BR>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0pt 0pt 0pt 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>A full scale friend lent me a book by Alan Cassidy
entitled “Better Aerobatics” which had a formula for determining how many
Gs to pull to enter a snap. It is very
enlightening.<BR><BR><BR><BR>Formula is = Recommended entry
speed to enter snap divided by the Power ON stall speed -
Squared.<BR><BR><BR><BR>His example (Pits S2A) was 105/55 =1.909
(1.909)2 =3.64 Gs. This means you would try to
have an instantaneous 3.64 G loading if entering the “flick roll” at
105 mph.<BR><BR><BR><BR>What I find fascinating about the formula is the
“power on stall” part of the formula. Now translate that into our
models which have NO power ON stall speed. I think this means that
mathematically we cannot do a snap. Or the instantaneous Gs
required are impossible to
obtain.<BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR>_______________________________________________<BR>NSRCA-discussion
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clear=all><BR>-- <BR><BR>Keith Hoard<BR>Collierville, TN<BR><A
href="mailto:khoard@gmail.com">khoard@gmail.com</A><BR><BR><BR>
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