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<DIV><FONT face=Arial size=2>Matt</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I don't have the YAK set-up for 3D at the moment
(linkage / control travels / prop). I agree, it would be interesting data. I did
a little 3D with it and suspect it's quite a bit slower with a 3D prop, which
will mitigate loads. I do remember doing a wall a couple of years ago with a 120
powered profile 3D and one wing broke off. While still trying to fly the biggest
piece, a friend pointed out that the receiver was in the missing wing. Would
love to have measure G's on that wall.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Earl</FONT></DIV>
<DIV><BR><FONT face=Arial size=2>----- Original Message ----- <BR>From:
Rcmaster199@aol.com <BR>To: discussion@nsrca.org <BR>Sent: Friday, January 28,
2005 12:46 PM<BR>Subject: Re: Snao G's<BR><BR><BR>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.<BR><BR>Earl could you do any 3D type
maneuvers and measurements with the Yak?<BR><BR>Very informative discussion BTW,
and may result in improved more efficient building technique, read-- lightest
for the desired strength.<BR><BR>thanks<BR><BR>matt<BR><BR>In a message dated
1/28/2005 1:32:35 PM Eastern Standard Time, d.pappas@kodeos.com
writes:<BR>That's proof of stall!<BR>If the G loading rises suddenly, and then
holds or droops continuously during the roll, then it's probably an accelerated
barrel.<BR>If the profile is sudden rise, sudden drop to maybe 1/2, then onload,
you have a real snap.<BR><BR>Yia,<BR> Dean<BR><BR>Dean Pappas
<BR>Sr. Design Engineer <BR>Kodeos Communications <BR>111 Corporate Blvd.
<BR>South Plainfield, N.J. 07080 <BR>(908) 222-7817 phone <BR>(908) 222-2392 fax
<BR>d.pappas@kodeos.com <BR>-----Original Message-----<BR>From:
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]On Behalf Of
Rcmaster199@aol.com<BR>Sent: Friday, January 28, 2005 11:45 AM<BR>To:
discussion@nsrca.org<BR>Subject: Re: Snao G's<BR><BR><BR>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.<BR><BR>Matt<BR><BR>In a message dated 1/28/2005 11:23:25 AM Eastern
Standard Time, d.pappas@kodeos.com writes:<BR>Let me add another two cents worth
...<BR>Earl,<BR>What is the sampling rate on your data logger?<BR>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,<BR>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.<BR>Of
course, if the data logger samples once a second, we have almost no way of
knowing.<BR><BR>Later,<BR>
Dean</FONT></DIV></BODY></HTML>