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<DIV>OK, that is why I could not find it. I was looking at the on line information.</DIV>
<DIV>Vince</DIV>
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<DIV><FONT face=Arial size=2>Vince</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It's in the sound addendum, last page of the '02-'04 rules, I'm don't see it in the current online rules.</FONT></DIV>
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<DIV><FONT face=Arial size=2>Earl</FONT></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=vicenterc@comcast.net href="mailto:vicenterc@comcast.net">vicenterc@comcast.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> ; <A title=discussion@nsrca.org href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=ehaury@houston.rr.com href="mailto:ehaury@houston.rr.com">Earl Haury</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, May 28, 2005 7:03 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: dBa or dbC for noise measurements?</DIV>
<DIV><BR></DIV>
<DIV>Earl,</DIV>
<DIV> </DIV>
<DIV>Do you know where in AMA rule book? In the pattern there is not mention. IMAC clearly specs. dbA.</DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV> </DIV>
<DIV>Vince</DIV>
<DIV> </DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR><BR>> dBA is what is specified in the AMA & F3A rules. <BR>> <BR>> Earl <BR>> ----- Original Message ----- <BR>> From: "Ed White" <EDVWHITE@YAHOO.COM><BR>> To: <DISCUSSION@NSRCA.ORG><BR>> Sent: Saturday, May 28, 2005 8:21 AM <BR>> Subject: Re: dBa or dbC for noise measurements? <BR>> <BR>> <BR>> > Use dBA. It more closely approximates the <BR>> > characteristics of the human ear and is commonly used <BR>> > when noise measurements are taken. <BR>> > <BR>> > Ed <BR>> > <BR>> > --- vicenterc@comcast.net wrote: <BR>> >> Just a question. What weighted factor should be use <BR>> >> for precision aerobatics AMA noise measurements? <BR>> >> dBA or dBC. I think is dBA and was discussed a long <BR>> >> time ago but I forgot. <BR>> >> <BR </BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></body></html>