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<DIV>What amazes me is how much this Funtana 90 I have will take. And I am
using an ST2300 on it. When you look at the way it is built you think that
it would never hold up to some of the manuvers it was designed to fly. But its
not so much the engine as it is the entry speed and throttle control. My
pattern planes are built much tougher then this Funtana yet the Funtana has 1100
sg inches of parachute popping area that can slam some serious G's. The
pattern planes are flown at about 2 to 3x the speed so exponentially they are
stressed more under a same type of maneuver.</DIV>
<DIV> </DIV>
<DIV>Wayne G.</DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=mrandmrst@comcast.net href="mailto:mrandmrst@comcast.net">Ken
Thompson III</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> Friday, January 28, 2005 4:57
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [SPAM] Re: Snao G's</DIV>
<DIV><BR></DIV>
<DIV>Walls I can see the stress, however I understand that the correct way to
enter a wall is at 1/4 throttle or less. I'm not one of those big ego
guys, so correct me if I'm wrong.</DIV>
<DIV>Parachutes are more of a controlled fall, from a partial wall up high,
and Blenders begin from a stalled state. Of course when you slam the
throttle to push the plane through the Blender, that could hurt a bunch.</DIV>
<DIV> </DIV>
<DIV>Ken</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV>
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<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Ed_Alt@hotmail.com href="mailto:Ed_Alt@hotmail.com">Ed Alt</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> Friday, January 28, 2005 5:05
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [SPAM] Re: Snao G's</DIV>
<DIV><BR></DIV>
<DIV>Yep, but the transition into it can be stressful. Stuff like
Walls, Parachutes, Blenders, certain brands of Waterfalls put mucho strain
in the airframe. </DIV>
<DIV>Ed</DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=mrandmrst@comcast.net href="mailto:mrandmrst@comcast.net">Ken
Thompson III</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> Friday, January 28, 2005 4:16
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Snao G's</DIV>
<DIV><BR></DIV>
<DIV>Matt,</DIV>
<DIV>I could be wrong, but isn't 3D, by definition, done in a constant
state of stall? Wouldn't that eliminate a lot of the high G's in the
maneuvers? I wouldn't think the airframe would be in as stressed
state, when the flying surface is depending on prop wash, not air speed,
to do it's thing.</DIV>
<DIV> </DIV>
<DIV>Ken</DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Rcmaster199@aol.com
href="mailto:Rcmaster199@aol.com">Rcmaster199@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> Friday, January 28, 2005 1:46
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Snao G's</DIV>
<DIV><BR></DIV><FONT id=role_document face=Arial color=#000000 size=2>
<DIV>
<DIV>If this accelerometer is finding 13 G loads generated by a
Pattern model snap, a relatively low amount really, I imagine that a 3D
model set up for a full array of stunts has to be experiencing double
that at least.</DIV>
<DIV> </DIV>
<DIV>Earl could you do any 3D type maneuvers and measurements with
the Yak?</DIV>
<DIV> </DIV>
<DIV>Very informative discussion BTW, and may result in improved more
efficient building technique, read-- lightest for the desired
strength.</DIV>
<DIV> </DIV>
<DIV>thanks</DIV>
<DIV> </DIV>
<DIV>matt</DIV>
<DIV> </DIV>
<DIV>In a message dated 1/28/2005 1:32:35 PM Eastern Standard Time,
d.pappas@kodeos.com writes:</DIV>
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<DIV><SPAN class=764412918-28012005>That's proof of
stall!</SPAN></DIV>
<DIV><SPAN class=764412918-28012005>If the G loading rises suddenly,
and then holds or droops continuously during the roll, then it's
probably an accelerated barrel.</SPAN></DIV>
<DIV><SPAN class=764412918-28012005>If the profile is sudden rise,
sudden drop to maybe 1/2, then onload, you have a real
snap.</SPAN></DIV>
<DIV><SPAN class=764412918-28012005></SPAN> </DIV>
<DIV><SPAN class=764412918-28012005>Yia,</SPAN></DIV>
<DIV><SPAN class=764412918-28012005>
Dean</SPAN></DIV>
<DIV> </DIV>
<P><FONT face="Times New Roman">Dean Pappas</FONT> <BR><FONT
face="Times New Roman">Sr. Design Engineer</FONT> <BR><FONT
face="Times New Roman">Kodeos Communications</FONT> <BR><FONT
face="Times New Roman">111 Corporate Blvd.</FONT> <BR><FONT
face="Times New Roman">South Plainfield, N.J. 07080</FONT> <BR><FONT
face="Times New Roman">(908) 222-7817 phone</FONT> <BR><FONT
face="Times New Roman">(908) 222-2392 fax</FONT> <BR><FONT
face="Times New Roman">d.pappas@kodeos.com</FONT> </P>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org]<B>On Behalf Of
</B>Rcmaster199@aol.com<BR><B>Sent:</B> Friday, January 28, 2005
11:45 AM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Re:
Snao G's<BR><BR></FONT></DIV><FONT face=Arial color=#000000>
<DIV>
<DIV>Good point. Once in the stall, the model should not
see the same continued G load. Should drop
dramatically. If the plane doesn't stall to begin with,
different story.</DIV>
<DIV> </DIV>
<DIV>Matt</DIV>
<DIV> </DIV>
<DIV>In a message dated 1/28/2005 11:23:25 AM Eastern Standard Time,
d.pappas@kodeos.com writes:</DIV>
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style="BACKGROUND-COLOR: transparent" face=Arial color=#000000>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff>Let me add another two cents worth
...</FONT></SPAN></DIV>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff>Earl,</FONT></SPAN></DIV>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff>What is the sampling rate on your data
logger?</FONT></SPAN></DIV>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff>Can you see if the maximum 13-Gs at 100 MPH
was sustained for the entire half second or so that it took
to complete the snap,</FONT></SPAN></DIV>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff>or was it a short spike (like 0.1 second)
and then sustained at say half of that value, for the rest
of the snap.</FONT></SPAN></DIV>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff>Of course, if the data logger samples once a second,
we have almost no way of knowing.</FONT></SPAN></DIV>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=858241016-28012005><FONT face=Arial
color=#0000ff>Later,</FONT></SPAN></DIV>
<DIV><SPAN
class=858241016-28012005>
<FONT face=Arial
color=#0000ff>Dean</FONT></SPAN></DIV></FONT></BLOCKQUOTE></DIV></FONT></BLOCKQUOTE></FONT></BLOCKQUOTE></DIV>
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