REFLECTOR:Engines
Joe
reflector@tvbf.org
Wed, 21 Apr 2004 20:14:08 -0400
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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><FONT face=3DArial size=3D2>I am considering engine options for my =
173 Elite=20
RG.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Option 1. Does anyone know of a =
used Franklin=20
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.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Option 2. Has anyone heard of =
installing an=20
O-540 (250 Hp version) in a 173 RG. Here is my thinking (shoot =
holes in=20
the theory as required) </FONT><FONT face=3DArial size=3D2>I do =
not want to=20
pay the high price of an MT (a real budget buster.) The majority =
of my=20
flying will be long cross countries so a fixed pitch prop optimized for =
cruise=20
would be preferred. With that prop I realize the trade off is =
longer=20
takeoff distance and reduce climb performance. So in comes the =
O-540, the=20
additional horsepower will compensate for the lower climb performance=20
prop. (Lower climb fuel economy is OK.) Other disadvantages: =
modifying the cowling (its only time), increased empty weight (81 =
pound, I=20
can live with that), more front ballast required when flying solo (can =
live with=20
that too.) Possible advantages: increased engine life (will be =
running=20
slower than normal operating limits, lower CHT etc.), high density =
altitude or=20
short strip - will have a little extra HP available.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I welcome anyone's opinions or comments =
on=20
#2.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Joe</FONT></DIV></BODY></HTML>
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