REFLECTOR:Engines
Lawrence Epstein,MD
reflector@tvbf.org
Thu, 22 Apr 2004 09:54:49 -0400
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I believe that there were significant modifications, particularly to the
strake/Spar/Firewall area in order to handle the increased loads
Larry Epstein
173 FGE
-----Original Message-----
From: reflector-admin@tvbf.org [mailto:reflector-admin@tvbf.org] On
Behalf Of Ronnie Brown
Sent: Thursday, April 22, 2004 7:54 AM
To: reflector@tvbf.org
Subject: Re: REFLECTOR:Engines
Hi Joe,
Alan Shaw once had a standard with an IO540 on it. I heard a
presentation he did at Sun-n-Fun a few years back saying that this was a
great combination (although I'm not sure which prop he used). He says
the CG box is very conservative and that the standard can actually
handle the added weight of the 540. But, I do know the 173 wings are
heavier and places more weight aft of the CG than the standard wings.
Craig Catto can make a 3 blade prop for the 540.
http://www.cattoprops.com/
And of course the 173 wings are the same as the XL, so that shouldn't be
an issue.
You'll have a real screamer - for certain. From my owner list, I count
at least 4 540's on standard fuselages - and Alan Shaw's was a 173.
Ronnie
----- Original Message -----
From: Joe <mailto:jewen@comporium.net>
To: reflector@tvbf.org
Sent: Wednesday, April 21, 2004 8:14 PM
Subject: REFLECTOR:Engines
I am considering engine options for my 173 Elite RG.
Option 1. Does anyone know of a used Franklin 220 available. My
current preference is a Franklin 220 with an IVO In-flight adjustable
prop, but don't know if I can find a Franklin.
Option 2. Has anyone heard of installing an O-540 (250 Hp version) in a
173 RG. Here is my thinking (shoot holes in the theory as required) I
do not want to pay the high price of an MT (a real budget buster.) The
majority of my flying will be long cross countries so a fixed pitch prop
optimized for cruise would be preferred. With that prop I realize the
trade off is longer takeoff distance and reduce climb performance. So
in comes the O-540, the additional horsepower will compensate for the
lower climb performance prop. (Lower climb fuel economy is OK.) Other
disadvantages: modifying the cowling (its only time), increased empty
weight (81 pound, I can live with that), more front ballast required
when flying solo (can live with that too.) Possible advantages:
increased engine life (will be running slower than normal operating
limits, lower CHT etc.), high density altitude or short strip - will
have a little extra HP available.
I welcome anyone's opinions or comments on #2.
Thanks,
Joe
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<div class=3DSection1>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I believe that there were =
significant
modifications, particularly to the strake/Spar/Firewall area in order to =
handle
the increased loads<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Larry =
Epstein<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>173 =
FGE<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma'>-----Original Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> =
reflector-admin@tvbf.org
[mailto:reflector-admin@tvbf.org] <b><span style=3D'font-weight:bold'>On =
Behalf
Of </span></b>Ronnie Brown<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> =
</span></font><st1:date
Month=3D"4" Day=3D"22" Year=3D"2004"><font size=3D2 face=3DTahoma><span =
style=3D'font-size:
10.0pt;font-family:Tahoma'>Thursday, April 22, =
2004</span></font></st1:date><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'> </span></font><st1:time
Hour=3D"7" Minute=3D"54"><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma'>7:54 AM</span></font></st1:time><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'><br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
reflector@tvbf.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: =
REFLECTOR<span
class=3DGramE>:Engines</span></span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3D"Times New Roman"><span
style=3D'font-size:10.0pt'>Hi Joe,</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3D"Times New Roman"><span
style=3D'font-size:10.0pt'>Alan Shaw once had a standard with an IO540 =
on
it. I heard a presentation he did at Sun-n-Fun a few years back =
saying
that this was a great combination (although I'm not sure which prop he
used). He says the CG box is very conservative and that the =
standard can
actually handle the added weight of the 540. But, I do know the =
173 wings
are heavier and places more weight aft of the CG than the standard =
wings.
</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3D"Times New Roman"><span
style=3D'font-size:10.0pt'>Craig Catto can make a 3 blade prop for the =
540.
<a =
href=3D"http://www.cattoprops.com/">http://www.cattoprops.com/</a> <=
/span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3D"Times New Roman"><span
style=3D'font-size:10.0pt'>And of course the 173 wings are the same as =
the XL, so
that shouldn't be an issue.</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3D"Times New Roman"><span
style=3D'font-size:10.0pt'>You'll have a real screamer - for =
certain. From
my owner list, I count at least 4 540's on standard fuselages =
- and
Alan Shaw's was a 173.</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3D"Times New Roman"><span
style=3D'font-size:10.0pt'>Ronnie</span></font><o:p></o:p></p>
</div>
<blockquote style=3D'border:none;border-left:solid black =
1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'=
>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>----- Original Message =
----- <o:p></o:p></span></font></p>
</div>
<div style=3D'font-color:black'>
<p class=3DMsoNormal =
style=3D'margin-left:.5in;background:#E4E4E4'><b><font size=3D2
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span=
></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> <a
href=3D"mailto:jewen@comporium.net" =
title=3D"jewen@comporium.net">Joe</a> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>To:</span><=
/font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> <a
href=3D"mailto:reflector@tvbf.org" =
title=3D"reflector@tvbf.org">reflector@tvbf.org</a>
<o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>Sent:</span=
></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'> Wednesday,
April 21, 2004 8:14 PM<o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold'>Subject:</s=
pan></font></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>
REFLECTOR:Engines<o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>I am considering engine =
options for
my 173 Elite RG.</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Option 1. Does anyone =
know of
a used Franklin 220 available. My current preference is a Franklin =
220
with an IVO In-flight adjustable prop, but don't know if I can find a =
Franklin.</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Option 2. Has anyone =
heard of
installing an O-540 (250 Hp version) in a 173 RG. Here is my =
thinking
(shoot holes in the theory as required) I do not want to pay the =
high
price of an MT (a real budget buster.) The majority of my flying =
will be
long cross countries so a fixed pitch prop optimized for cruise would be
preferred. With that prop I realize the trade off is longer =
takeoff
distance and reduce climb performance. So in comes the O-540, the
additional horsepower will compensate for the lower climb performance
prop. (Lower climb fuel economy is OK.) Other disadvantages:
modifying the cowling (its only time), increased empty weight (81 =
pound,
I can live with that), more front ballast required when flying solo (can =
live
with that too.) Possible advantages: increased engine life (will =
be
running slower than normal operating limits, lower CHT etc.), high =
density
altitude or short strip - will have a little extra HP =
available.</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>I welcome anyone's opinions =
or
comments on #2.</span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Thanks,</span></font><o:p></=
o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Joe</span></font><o:p></o:p>=
</p>
</div>
</blockquote>
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