<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>A lot of things are enforced that are not in the rule book and a lot ignored that is.</DIV>
<DIV> </DIV>
<DIV>Tim<BR><BR>--- On <B>Wed, 7/20/11, Jon Lowe <I><jonlowe@aol.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From: Jon Lowe <jonlowe@aol.com><BR>Subject: Re: [NSRCA-discussion] Sound measurement<BR>To: nsrca-discussion@lists.nsrca.org<BR>Date: Wednesday, July 20, 2011, 8:53 PM<BR><BR>
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<DIV>Earl,</DIV>
<DIV>Thanks, but I still can't find it in the rule book. Anyone know where it is? John Fuqua?? If it isn't there, how can we enforce it?<BR><BR></DIV>
<DIV style="CLEAR: both"><FONT color=black face="Arial, Helvetica, sans-serif"><FONT color=black face=arial><SPAN style="FONT-SIZE: medium" class=yiv1077473549Apple-style-span>Jon</SPAN></FONT></FONT></DIV><BR><BR>
<DIV style="FONT-FAMILY: arial, helvetica; COLOR: black; FONT-SIZE: 10pt">-----Original Message-----<BR>From: ehaury <ejhaury@comcast.net><BR>To: General pattern discussion <nsrca-discussion@lists.nsrca.org><BR>Sent: Wed, Jul 20, 2011 8:54 am<BR>Subject: Re: [NSRCA-discussion] Sound measurement<BR><BR>
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<DIV>Jon</DIV>
<DIV><BR></DIV>
<DIV>The spec is dbA so - A scale. Typically use "Fast" unless reading is varying 3db or so (unlikely), then use slow.</DIV>
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<DIV>Earl<BR><BR>Sent from my iPhone</DIV>
<DIV><BR>On Jul 20, 2011, at 8:53 AM, Jon Lowe <<A href="http://us.mc1254.mail.yahoo.com/mc/compose?to=jonlowe@aol.com" rel=nofollow target=_blank ymailto="mailto:jonlowe@aol.com">jonlowe@aol.com</A>> wrote:<BR><BR></DIV>
<DIV></DIV>
<BLOCKQUOTE type="cite">
<DIV><FONT color=black size=3 face="Arial, Helvetica, sans-serif">Does anyone know where the requirements for the settings on the dB meter are in the Competition regulations? The regs are very specific as to the placement of the sound meter to the aircraft, distances, etc, but I can't find the requirements for the use of "A" or "C" weighting, or "Fast" or Slow" response. I think we are supposed to use "A" weighting, and Slow response, but I'm not sure. <BR><BR>
<DIV style="CLEAR: both"><FONT color=black face="Arial, Helvetica, sans-serif"><FONT color=black face=arial><SPAN style="FONT-SIZE: medium" class=yiv1077473549Apple-style-span>Jon</SPAN></FONT></FONT></DIV></FONT></DIV></BLOCKQUOTE>
<BLOCKQUOTE type="cite">
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