Jeff,
You
may want to remove it and turn it upside down. I’ll bet you lunch you do
have loose material. Both mine started loosing material and sounding louder
after 20 hours or so. I think Mark S. destroyed his in about 5 hours or less. I
sure hope the muffler was my problem and I don’t have another grimlin
loose in the plane. Need to duplicate the failure.
Bobby
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Jeff Whaley
Sent: Monday, March 21, 2011 10:56
AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Forced
Landing ... muffler installations.
Hey Bobby, glad to
hear you got down safely. Having two alternate runways available was
indeed a blessing … the 360 is not doable in most situations.
Like many others as
you say, I too have a Hush Power II … mounted under the belly, aft of the
firewall; there is probably 4 feet of pipe ahead of my muffler and 2
afterwards. So far all inspections on my muffler have not revealed any
loose material within … but I’m low-time 48 flight hours, maybe 55
hrs if you include ground-running. Incidents like this do make a guy
think. I find my installation so loud as it is that I can’t imagine
operating without a muffler …
Jeff
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