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Date: Tue, 19 Apr 2011 20:42:36 -0500
Message-ID: <BANLkTikauw1a5Z7jDX9Wt_N3SPpm2t3fsw@mail.gmail.com>
Subject: Re: [FlyRotary] Re: Burns Stainless Muffler Failure
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Thomas,

In my opinion, you want it as quiet in cruise as you can get it.  Ground ops
are normally at low power and therefore not very loud.  It is when you go to
WOT that things get deafening, and you'll spend a lot of time in that mode.

Mark



On Tue, Apr 19, 2011 at 6:59 PM, Thomas Mann <tmann@n200lz.com> wrote:

> I'm putting a rotary in my canard aircraft. With all of these muffler
> failures I'm considering installing a cutout to bypass the muffler if
> needed.
>
> Is it unrealistic to consider using the muffler during ground operations
> and while in the pattern and just bypass the muffler for all other
> operations? (Pusher Configuration)
>
>
>
> -----Original Message----- From: Steve Thomas
> Sent: Tuesday, April 19, 2011 6:24 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Burns Stainless Muffler Failure
>
>
> I just did an inspection of my muffler and found that it was basically
> coming apart inside.  This is a Burns Stainless, 17" 2-Stage muffler after
> 50 hours of flying behind a 2-rotor engine.  Now, it could be that 50 hours
> is a reasonable life for something like this, I don't know.  But, it
> certainly confirms the stories of muffler disintegration.  I've inspected
> this muffler several times over the last 50 hours, but this is the first
> time that I've seen damage.  But, when it comes apart, it really comes
> apart.  It is unfortunate, as the muffler was really effective in reducing
> the noise and was light-weight.
>
>
> Best Regards,
>
> Steve Thomas
>
> _____________________
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> --
> Homepage:  http://www.flyrotary.com/
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Thomas,=A0<div><br></div><div>In my opinion, you want it as quiet in cruise=
 as you can get it. =A0Ground ops are normally at low power and therefore n=
ot very loud. =A0It is when you go to WOT that things get deafening, and yo=
u&#39;ll spend a lot of time in that mode.</div>
<div><br></div><div>Mark =A0</div><div><br></div><div><br><br><div class=3D=
"gmail_quote">On Tue, Apr 19, 2011 at 6:59 PM, Thomas Mann <span dir=3D"ltr=
">&lt;<a href=3D"mailto:tmann@n200lz.com">tmann@n200lz.com</a>&gt;</span> w=
rote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;">I&#39;m putting a rotary in my canard aircr=
aft. With all of these muffler failures I&#39;m considering installing a cu=
tout to bypass the muffler if needed.<br>

<br>
Is it unrealistic to consider using the muffler during ground operations an=
d while in the pattern and just bypass the muffler for all other operations=
? (Pusher Configuration)<br>
<br>
<br>
<br>
-----Original Message----- From: Steve Thomas<br>
Sent: Tuesday, April 19, 2011 6:24 PM<br>
To: Rotary motors in aircraft<br>
Subject: [FlyRotary] Burns Stainless Muffler Failure<div class=3D"im"><br>
<br>
I just did an inspection of my muffler and found that it was basically comi=
ng apart inside. =A0This is a Burns Stainless, 17&quot; 2-Stage muffler aft=
er 50 hours of flying behind a 2-rotor engine. =A0Now, it could be that 50 =
hours is a reasonable life for something like this, I don&#39;t know. =A0Bu=
t, it certainly confirms the stories of muffler disintegration. =A0I&#39;ve=
 inspected this muffler several times over the last 50 hours, but this is t=
he first time that I&#39;ve seen damage. =A0But, when it comes apart, it re=
ally comes apart. =A0It is unfortunate, as the muffler was really effective=
 in reducing the noise and was light-weight.<br>

<br>
<br>
Best Regards,<br>
<br>
Steve Thomas<br>
<br>
_____________________<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br></div>
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