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<DIV>Hi Bill,</DIV>
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<DIV>Did you check wiht 3 or 4 blade prop? Probably you could reduce it wiht those props.</DIV>
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<DIV>Vicente</DIV>
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<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>> ================================================= <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 list. <BR>> </BLOCKQUOTE></body></html>