<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2600.0" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>We were looking for ANY way to quiet those suckers
down. My deal was running a RE short stroke Rossi in a heavy, clean
E-HUGE-1A and turning an 11-7.5 wood prop 18,000+ on the backside of a
Split-S. It was great. LOUD--but great. The pipes would
RING. Prop flutter was an issue along with airframe and pipe noise,
engine speed, etc., etc......... No question the newer stuff is more capable and
the patterns more challenging--but I don't know if they are more FUN.
<EM>Part</EM> of the enjoyment was going out and making some serious
racket.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>RS</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Jim_Woodward@beaerospace.com
href="mailto:Jim_Woodward@beaerospace.com">Jim_Woodward@beaerospace.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, August 12, 2004 12:35
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Air filters</DIV>
<DIV><BR></DIV><BR><FONT face=sans-serif size=2>Hi All,</FONT> <BR><BR><FONT
face=sans-serif size=2>I was under the impression that the real cause of
excessive noise was prop (rpm & diameter). The actual engine noise
and exhaust setup (by todays typical standard) was not the significant cause
of noise - the prop is the culprit. <BR>Jim
W.<BR><BR></FONT><BR><BR><BR>
<TABLE width="100%">
<TBODY>
<TR vAlign=top>
<TD>
<TD><FONT face=sans-serif size=1><B><<A
href="mailto:tony@radiosouthrc.com">tony@radiosouthrc.com</A>></B></FONT>
<BR><FONT face=sans-serif size=1>Sent by: <A
href="mailto:discussion-request@nsrca.org">discussion-request@nsrca.org</A></FONT>
<P><FONT face=sans-serif size=1>08/12/2004 01:32 PM</FONT> <BR><FONT
face=sans-serif size=1>Please respond to tony</FONT> <BR></P>
<TD><FONT face=Arial size=1> </FONT><BR><FONT
face=sans-serif size=1> To:
<discussion@nsrca.org></FONT> <BR><FONT
face=sans-serif size=1> cc:
</FONT> <BR><FONT face=sans-serif size=1>
Subject: Re: Air
filters</FONT></TR></TBODY></TABLE><BR><BR><BR><FONT face=Arial
size=2>Richard:<BR>I make one for the OS 160...</FONT> <BR><FONT
face="Times New Roman" size=3> </FONT> <BR><FONT face="Times New Roman"
size=3>Tony Stillman<BR>Radio South<BR>3702 N. Pace Blvd.<BR>Pensacola, FL
32505<BR>1-800-962-7802</FONT><FONT face="Times New Roman" color=blue
size=3><U><BR></U></FONT><A href="http://www.radiosouthrc.com/"><FONT
face="Times New Roman" color=blue
size=3><U>www.radiosouthrc.com</U></FONT></A> <BR><FONT face="Times New Roman"
size=3>----- Original Message ----- </FONT><BR><FONT face="Times New Roman"
size=3><B>From:</B> </FONT><A
href="mailto:richard.s@allied-callaway.com"><FONT face="Times New Roman"
color=blue size=3><U>Richard Strickland</U></FONT></A><FONT
face="Times New Roman" size=3> </FONT><BR><FONT face="Times New Roman"
size=3><B>To:</B> </FONT><A href="mailto:discussion@nsrca.org"><FONT
face="Times New Roman" color=blue size=3><U>NSRCA</U></FONT></A><FONT
face="Times New Roman" size=3> </FONT><BR><FONT face="Times New Roman"
size=3><B>Sent:</B> Thursday, August 12, 2004 10:37 AM</FONT> <BR><FONT
face="Times New Roman" size=3><B>Subject:</B> Air filters</FONT> <BR><BR><FONT
face=Arial size=2>Anyone,</FONT> <BR><FONT face="Times New Roman"
size=3> </FONT> <BR><FONT face=Arial size=2>When we first started trying
to quiet things down, one of the areas we looked at was intake noise. We
used to use a stretch on filter housing with small filter disks that helped
the noise problems with the added benefit of keeping crap out of the
engine--gee, what a concept. Are there any such animals available now?
We fly off an old asphalt runway and there is the possibility something
significant was sucked into a brand new 170 and destroyed the piston, sleeve,
ring and bearing. First time for everything, I guess. The 60 sized
ones did not seem to affect performance.</FONT> <BR><FONT
face="Times New Roman" size=3> </FONT> <BR><FONT face=Arial
size=2>Thanks,</FONT> <BR><FONT face="Times New Roman" size=3> </FONT>
<BR><FONT face=Arial size=2>Richard</FONT> <BR><BR></BLOCKQUOTE></BODY></HTML>