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<DIV dir=ltr align=left><SPAN class=874393507-27062005><FONT face=Arial
color=#0000ff size=2>Hi Bill</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=874393507-27062005><FONT face=Arial
color=#0000ff size=2>I'm using APC 4 blade 15.5X12 30% CP - 87-89 DB
</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=874393507-27062005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=874393507-27062005><FONT face=Arial
color=#0000ff size=2>Aviram</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org] <B>On Behalf Of
</B>vicenterc@comcast.net<BR><B>Sent:</B> Monday, June 27, 2005 3:50
AM<BR><B>To:</B> discussion@nsrca.org; discussion@nsrca.org<BR><B>Cc:</B>
William Ahrens<BR><B>Subject:</B> Re: Noise Limits for FAI<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>Hi Bill,</DIV>
<DIV> </DIV>
<DIV>Did you check wiht 3 or 4 blade prop? Probably you could reduce it
wiht those props.</DIV>
<DIV> </DIV>
<DIV>Vicente</DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">--------------
Original message -------------- <BR><BR>> Group <BR>> <BR>> For a YS
160 what prop and exhaust will get me to 94dB(A) and work well. <BR>>
<BR>> Currently using a 17 x 12 wide with EX Composite pipe and 30 percent
Nitro. <BR>> Today at about 101 degrees heat index my plane measured about
98dB(A) with a <BR>> Radio Shack meter. <BR>> <BR>> Thanks <BR>>
Bill <BR>> <BR>> =================================================
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