Air filters

[Jim_Woodward at beaerospace.com]

Hi All,

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. 
Jim W.






<tony at radiosouthrc.com>
Sent by: discussion-request at nsrca.org
08/12/2004 01:32 PM
Please respond to tony

 
        To:     <discussion at nsrca.org>
        cc: 
        Subject:        Re: Air filters


Richard:
I make one for the OS 160...
 
Tony Stillman
Radio South
3702 N. Pace Blvd.
Pensacola, FL 32505
1-800-962-7802
www.radiosouthrc.com
----- Original Message ----- 
From: Richard Strickland 
To: NSRCA 
Sent: Thursday, August 12, 2004 10:37 AM
Subject: Air filters

Anyone,
 
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.
 
Thanks,
 
Richard

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