From: "lehanover lehanover@aol.com" <flyrotary@lancaironline.net>
Received-SPF: pass
 receiver=logan.com; client-ip=74.6.130.122; envelope-from=lehanover@aol.com
Date: Tue, 2 Feb 2021 01:00:01 +0000 (UTC)
Reply-To: lehanover <lehanover@aol.com>
To: flyrotary@lancaironline.net
Message-ID: <47877799.933860.1612227601644@mail.yahoo.com>
In-Reply-To: <list-1181489@logan.com>
References: <list-1181489@logan.com>
Subject: Re: [FlyRotary] Re: Exhaust
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I have an old Radio Shack=C2=A0 "sound level meter"=C2=A0 if you want it se=
nd me 13 dollars for the USPS box and you can have it. Measures 60 to 100 D=
b.=C2=A0 Takes a 9 volt battery. Stored without a battery in it. Battery co=
mpartment looks as new.=C2=A0 =C2=A0Has OH, Reset, Min, Max, Weighting, and=
 response. Has a data output port. A calibration port.An LCD screen. And a =
1/4 20 camera mount hole for a tripod mount.=C2=A0 We measured sound at 50'=
 from the edge of the track.=C2=A0Used to measure sound on a Mazda powered =
race car...............Lynn E. Hanoverlehanover@aol.com=C2=A0In a message d=
ated 2/1/2021 4:35:09 PM Eastern Standard Time, flyrotary@lancaironline.net=
 writes:=C2=A0

Mat,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 St=
ill working on the turbo, which means I have yet to fly with it.=C2=A0 Have=
 also added a muffler, straight through, which has added another 15 pounds =
weight.=C2=A0 Apparently nil backpressure.=C2=A0 Other than the opinions of=
 the muffler manufacturer I have no idea, but am determined to shut the noi=
se up.

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Regards,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Neil.

 =C2=A0

From: Rotary motors in aircraft <flyrotary@lancaironline.net>=20
Sent: Friday, January 29, 2021 1:51 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Exhaust

=C2=A0

Neil,=C2=A0

=C2=A0

I haven't flown the plane since Oct, hoping to head back to the States in t=
wo weeks.
*Fingers crossed*. But in Oct, flying the plane around the exhaust noise is=
 a non-issue. I can talk to my passenger, and hear the radios. I like the C=
AN centerforce=C2=A0design. I want to add some back pressure sensors though=
, measure=C2=A0the CAN vs exhaust. Any idea what is too much for a rotary ?

Here's a link that talks about the exhaust.
https://www.homebuiltairplanes.com/forums/threads/exhaust-within-subcowl.30=
848/page-2#post-512762

With the slip joint bellow, the outside 321ss cracked at the according=C2=
=A0folds. The new one will be=C2=A0625 inconel folds. Guessing too much vib=
ration. How has everyone else run their exhaust under the plane? Do you put=
 in any slip joints, or 1 big long connection. The bellow actually turned o=
ut where the orange pipe is. I'm wondering if I should put it in a differen=
t place now.. Can't attach pictures here, check out the link to HomeBuilt.


- Matt Boiteau


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<div>
<div class=3D"userEdit" style=3D"font-family: arial, helvetica, sans-serif;=
 font-size: 10pt; color: #000000;">
<div><span style=3D"font-family: arial, helvetica, sans-serif; font-size: 1=
0pt; color: #000000;">I have an old Radio Shack&nbsp; "sound level meter"&n=
bsp; if you want it send me 13 dollars for the USPS box and you can have it=
. Measures 60 to 100 Db.&nbsp; Takes a 9 volt battery. Stored without a bat=
tery in it. Battery compartment looks as new.&nbsp; &nbsp;Has OH, Reset, Mi=
n, Max, Weighting, and response. Has a data output port. A calibration port=
.</span></div>
<div><span style=3D"font-family: arial, helvetica, sans-serif; font-size: 1=
0pt; color: #000000;">An LCD screen. And a 1/4 20 camera mount hole for a t=
ripod mount.&nbsp; We measured sound at 50' from the edge of the track.</sp=
an></div>
<div>&nbsp;</div>
<div><span style=3D"font-family: arial, helvetica, sans-serif; font-size: 1=
0pt; color: #000000;">Used to measure sound on a Mazda powered race car....=
...........Lynn E. Hanover</span></div>
<div><span style=3D"font-family: arial, helvetica, sans-serif; font-size: 1=
0pt; color: #000000;">lehanover@aol.com</span></div>
<div><span style=3D"font-family: arial, helvetica, sans-serif; font-size: 1=
0pt; color: #000000;">&nbsp;</span></div>
</div>
In a message dated 2/1/2021 4:35:09 PM Eastern Standard Time, flyrotary@lan=
caironline.net writes:
<div>&nbsp;</div>
<div class=3D"quotedReply">
<blockquote style=3D"padding-left: 5px; margin-left: 5px; border-left: blue=
 2px solid;">
<div id=3D"yiv6172584127">
<div>
<div class=3D"yiv6172584127WordSection1">
<p class=3D"yiv6172584127MsoNormal"><span lang=3D"EN-AU">Mat,</span></p>
<p class=3D"yiv6172584127MsoNormal"><span lang=3D"EN-AU">&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Still working on the=
 turbo, which means I have yet to fly with it.&nbsp; Have also added a muff=
ler, straight through, which has added another 15 pounds weight.&nbsp; Appa=
rently nil backpressure.&nbsp; Other than the opinions of the muffler manuf=
acturer I have no idea, but am determined to shut the noise up.</span></p>
<p class=3D"yiv6172584127MsoNormal"><span lang=3D"EN-AU">&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regards,</span></p>
<p class=3D"yiv6172584127MsoNormal"><span lang=3D"EN-AU">&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Neil.</span></p>
<p class=3D"yiv6172584127MsoNormal"><span lang=3D"EN-AU"> &nbsp;</span></p>
<div style=3D"border: none; border-top: solid #E1E1E1 1.0pt; padding: 3.0pt=
 0in 0in 0in;">
<p class=3D"yiv6172584127MsoNormal"><strong>From:</strong> Rotary motors in=
 aircraft &lt;flyrotary@lancaironline.net&gt; <br><strong>Sent:</strong> Fr=
iday, January 29, 2021 1:51 PM<br><strong>To:</strong> Rotary motors in air=
craft &lt;flyrotary@lancaironline.net&gt;<br><strong>Subject:</strong> [Fly=
Rotary] Exhaust</p>
</div>
<p class=3D"yiv6172584127MsoNormal">&nbsp;</p>
<div>
<p class=3D"yiv6172584127MsoNormal">Neil,&nbsp;</p>
<div>
<p class=3D"yiv6172584127MsoNormal">&nbsp;</p>
</div>
<div>
<p class=3D"yiv6172584127MsoNormal" style=3D"margin-bottom: 12.0pt;">I have=
n't flown the plane since Oct, hoping to head back to the States in two wee=
ks.<br>*Fingers crossed*. But in Oct, flying the plane around the exhaust n=
oise is a non-issue. I can talk to my passenger, and hear the radios. I lik=
e the CAN centerforce&nbsp;design. I want to add some back pressure sensors=
 though, measure&nbsp;the CAN vs exhaust. Any idea what is too much for a r=
otary ?<br><br>Here's a link that talks about the exhaust.<br><a href=3D"ht=
tps://www.homebuiltairplanes.com/forums/threads/exhaust-within-subcowl.3084=
8/page-2#post-512762" target=3D"_blank" rel=3D"nofollow noopener noreferrer=
">https://www.homebuiltairplanes.com/forums/threads/exhaust-within-subcowl.=
30848/page-2#post-512762</a><br><br>With the slip joint bellow, the outside=
 321ss cracked at the according&nbsp;folds. The new one will be&nbsp;625 in=
conel folds. Guessing too much vibration. How has everyone else run their e=
xhaust under the plane? Do you put in any slip joints, or 1 big long connec=
tion. The bellow actually turned out where the orange pipe is. I'm wonderin=
g if I should put it in a different place now.. Can't attach pictures here,=
 check out the link to HomeBuilt.<br><br></p>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=3D"yiv6172584127MsoNormal">- Matt Boiteau</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
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