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To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Cooling sytem changes- Velocity 20B
Date: Tue, 29 Apr 2008 11:51:04 -0400
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Al, For max power lower temps are fine. Most people find max power at around=
 175=C2=B0F. Best efficiency is usually at slightly higher temp, around 190=
=C2=B0F. With the modern need for higher gas milage most manufacturers are g=
oing to 190=C2=B0 thermostats. Having a too low temperature is something of=20=
a luxury though!
Bill Jepson


-----Original Message-----
From: Al Gietzen <ALVentures@cox.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, 28 Apr 2008 4:35 pm
Subject: [FlyRotary] Cooling sytem changes- Velocity 20B






Should I be concerned that my coolant temp is now down around 140-145F at cr=
uise? =C2=A0I=E2=80=99m thinking that is maybe a bit too low.=C2=A0 What eff=
ect does it have?=20

=C2=A0

Oil temp stabilizes at about 160F for same conditions.=C2=A0 I think that=
=E2=80=99s probably fine.

=C2=A0

Al





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Al, For max power lower temps are fine. Most people find max power at around=
 175=C2=B0F. Best efficiency is usually at slightly higher temp, around 190=
=C2=B0F. With the modern need for higher gas milage most manufacturers are g=
oing to 190=C2=B0 thermostats. Having a too low temperature is something of=20=
a luxury though!<br>
Bill Jepson<br>
<br>
<br>
-----Original Message-----<br>
From: Al Gietzen &lt;ALVentures@cox.net&gt;<br>
To: Rotary motors in aircraft &lt;flyrotary@lancaironline.net&gt;<br>
Sent: Mon, 28 Apr 2008 4:35 pm<br>
Subject: [FlyRotary] Cooling sytem changes- Velocity 20B<br>
<br>


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<div class=3DMsoNormal><FONT face=3DVerdana color=3Dblue size=3D2><SPAN styl=
e=3D"FONT-SIZE: 11pt; COLOR: blue; FONT-FAMILY: Verdana">Should I be concern=
ed that my coolant temp is now down around 140-145F at cruise? &nbsp;I=E2=
=80=99m thinking that is maybe a bit too low.&nbsp; What effect does it have=
? </SPAN></FONT></div>


<div class=3DMsoNormal><FONT face=3DVerdana color=3Dblue size=3D2><SPAN styl=
e=3D"FONT-SIZE: 11pt; COLOR: blue; FONT-FAMILY: Verdana">&nbsp;</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT face=3DVerdana color=3Dblue size=3D2><SPAN styl=
e=3D"FONT-SIZE: 11pt; COLOR: blue; FONT-FAMILY: Verdana">Oil temp stabilizes=
 at about 160F for </SPAN></FONT><FONT face=3DVerdana color=3Dblue size=3D2>=
<SPAN style=3D"FONT-SIZE: 11pt; COLOR: blue; FONT-FAMILY: Verdana">sam</SPAN=
></FONT><FONT face=3DVerdana color=3Dblue size=3D2><SPAN style=3D"FONT-SIZE:=
 11pt; COLOR: blue; FONT-FAMILY: Verdana">e conditions.&nbsp; I think that=
=E2=80=99s probably fine.</SPAN></FONT></div>


<div class=3DMsoNormal><FONT face=3DVerdana color=3Dblue size=3D2><SPAN styl=
e=3D"FONT-SIZE: 11pt; COLOR: blue; FONT-FAMILY: Verdana">&nbsp;</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT face=3DVerdana color=3Dblue size=3D2><SPAN styl=
e=3D"FONT-SIZE: 11pt; COLOR: blue; FONT-FAMILY: Verdana">Al</SPAN></FONT></d=
iv>
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