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References: <list-4941441@logan.com>
To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Tracy's Cowling/Cooling Mods
Date: Sat, 09 Apr 2011 11:07:56 -0400
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I don't know how he configured his cooling arrangement, but I went out for=
 an hour yesterday in 40 degree weather and could not get my oil and coola=
nt temps above 120 degrees. I was only making 60% power, but still.....

I haven't quite got the tuning done on the top end- still too lean up ther=
e. Thought I had addressed the issue before takeoff, but no, and so I figu=
red I'd burn up one more hour towards my 40 hour restriction and so contin=
ued on with the flight and some glide tests- intentionally.

I have a scoop underneath the belly that resembles a P-51 scoop, it has a=
 25x13x2 inch griffin sprint car rad alongside the stock oil cooler, they=
 are mounted at an angle to the airflow, with the back part of the collers=
 touching the bottom of the fuselage, and the front about 5 inches below=
 the fuselage bottom. There is no cowl flap behind the heat exchangers. I=
 have to do something to restrict flow through the heat exchangers to allo=
w my temps to be up around the 160-190 mark.=20

I don't have any pictures of my arrangement at the moment, I think Paul La=
mar might have some at his site.=20


Brian Trubee






-----Original Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sat, Apr 9, 2011 6:14 am
Subject: [FlyRotary] Tracy's Cowling/Cooling Mods



Did anyone happen to get a picture of Tracy=E2=80=99s plane at SNF that wo=
uld show what he has done to modify/improve his cooling inlets?  I am in=
 the =E2=80=9Cdesign/invent=E2=80=9D mode to try and improve my cooling an=
d I would really appreciate some ideas that work.
=20
Anyone seen it that could describe the changes?  Anything would help!   :>=
)
=20
Bill B



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<font color=3D'black' size=3D'2' face=3D'arial'>
<div>I don't know how he configured his cooling arrangement, but I went ou=
t for an hour yesterday in 40 degree weather and could not get my oil and=
 coolant temps above 120 degrees. I was only making 60% power, but still..=
...</div>


<div>&nbsp;</div>


<div>I haven't quite got the tuning done on the top end- still too lean up=
 there. Thought I had addressed the issue before takeoff, but no, and so=
 I figured I'd burn up one more hour towards my 40 hour restriction and so=
 continued on with the flight and some glide tests- intentionally.</div>


<div>&nbsp;</div>


<div>I have a scoop underneath the belly that resembles a P-51 scoop, it=
 has a 25x13x2 inch griffin sprint car rad alongside the stock oil cooler,=
 they are mounted at an angle to the airflow, with the back part of the co=
llers touching the bottom of the fuselage, and the front about 5 inches be=
low the fuselage bottom. There is no cowl flap behind the heat exchangers.=
 I have to do something to restrict flow through the heat exchangers to al=
low my temps to be up around the 160-190 mark. </div>


<div>&nbsp;</div>


<div>I don't have any pictures of my arrangement at the moment, I think Pa=
ul Lamar might have some at his site. </div>


<div>&nbsp;</div>


<div>&nbsp;</div>


<div>Brian Trubee<br>
<br>
</div>


<div style=3D"CLEAR: both"></div>
<br>
<br>


<div style=3D"FONT-FAMILY: arial,helvetica; COLOR: black; FONT-SIZE: 10pt"=
>-----Original Message-----<br>
From: Bill Bradburry &lt;bbradburry@bellsouth.net&gt;<br>
To: Rotary motors in aircraft &lt;flyrotary@lancaironline.net&gt;<br>
Sent: Sat, Apr 9, 2011 6:14 am<br>
Subject: [FlyRotary] Tracy's Cowling/Cooling Mods<br>
<br>


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<div>

<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Did anyone happen=
 to get a picture of Tracy=E2=80=99s plane at SNF that would show what he=
 has done to modify/improve his cooling inlets?&nbsp; I am in the =E2=80=
=9Cdesign/invent=E2=80=9D mode to try and improve my cooling and I would=
 really appreciate some ideas that work.</SPAN></FONT></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Anyone seen it that=
 could describe the changes?&nbsp; Anything would help!&nbsp;&nbsp; :&gt;)=
</SPAN></FONT></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Bill B</SPAN></FONT=
></div>
</div>
</div>
</div>
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