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<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>> >> Thanks, <BR>> >> <BR>> >> Vince Bortone <BR>> > <BR>> > __________________________________________________ <BR>> > Do You Yahoo!? <BR>> > Tired of spam? Yahoo! Mail has the best spam protection around <BR>> > http://mail.yahoo.com <BR>> > ================================================= <BR>> > To access the email archives for this list, go to <BR>> > http://lists.f3a.us/pipermail/nsrca-discussion/ <BR>> > To be removed from this list, go to http://www.nsrca.org/discussionA.htm <BR>> > and follow the instructions. <BR>> > <BR>> > List members email returned for mailbox full will be removed from the <BR>> > list. <BR>> > <BR>> > <BR>> <BR>> <BR>> ================================================= <BR>> To access the email archives for this list, go to <BR>> http://lists.f3a.us/pipermail/nsrca-discussion/ <BR>> To be removed from this list, go to http://www.nsrca.org/discussionA.htm <BR>> and f
ollow the instructions. <BR>> <BR>> List members email returned for mailbox full will be removed from the list. <BR>> </BLOCKQUOTE></body></html>