REFLECTOR:173RG - IO-540 COMBO ... OH NO!
Mike Pollock
reflector@tvbf.org
Sat, 19 Jul 2003 07:18:01 -0500
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We use a 66 inch diameter 3-blade Performance prop on our 173RG and have
never had a prop come close to hitting.
Mike
-----Original Message-----
From: reflector-admin@tvbf.org [mailto:reflector-admin@tvbf.org]On Behalf
Of Tom Martino
Sent: Friday, July 18, 2003 5:58 PM
To: reflector@www.tvbf.org
Subject: REFLECTOR:173RG - IO-540 COMBO ... OH NO!
Please, please, please ... I need information. I know there are a few
weirdoes like me who chose to put the IO-540 on the 173RG. And I know there
are some special challenges ... but have any of you run into this yet?
I did some rotation tests with my brand new three-blade MT Prop. Ouch! I
can't use it. The prop will strike at a normal rotation. So I did some
measuring ... and unless I'm crazy ... it looks like I need 30" blades to be
safe! That's only a 60" prop!
Can that be so? I believe I did not exaggerate the rotation. And my
plane in standard in every way (except for the engine).
The factory told me I could expect a problem with clearance ... but they
said they had a plane there that flew away with my combo and a four-blade
prop. Was it longer than 60"? Was the point of rotation changed by moving
the gear? (that would be too late for me).
What is the alternative?
My prop show (an MT Dealer) says the factory may be able to come up with a
custom five-blade prop for my 325 horsepower configuration. Of course, I
would only have to get a large home equity loan!
HELP!!!!!!!!
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<DIV><SPAN class=3D636101412-19072003><FONT face=3DArial color=3D#0000ff =
size=3D2>We use=20
a 66 inch diameter 3-blade Performance prop on our 173RG and have never =
had a=20
prop come close to hitting.</FONT></SPAN></DIV>
<DIV><SPAN class=3D636101412-19072003><FONT face=3DArial color=3D#0000ff =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D636101412-19072003><FONT face=3DArial color=3D#0000ff =
size=3D2>Mike</FONT></SPAN></DIV>
<DIV><SPAN class=3D636101412-19072003></SPAN> </DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> =
reflector-admin@tvbf.org=20
[mailto:reflector-admin@tvbf.org]<B>On Behalf Of </B>Tom=20
Martino<BR><B>Sent:</B> Friday, July 18, 2003 5:58 PM<BR><B>To:</B>=20
reflector@www.tvbf.org<BR><B>Subject:</B> REFLECTOR:173RG - IO-540 =
COMBO ...=20
OH NO!<BR><BR></FONT></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Please, please, please =
... I need=20
information.<SPAN style=3D"mso-spacerun: yes"> </SPAN>I know =
there are a=20
few weirdoes like me who chose to put the IO-540 on the 173RG.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>And I know there are some =
special=20
challenges ... but have any of you run into this=20
yet?<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">I did some rotation =
tests with my=20
brand new three-blade MT Prop.<SPAN style=3D"mso-spacerun: yes"> =
</SPAN>Ouch!<SPAN style=3D"mso-spacerun: yes"> </SPAN>I =
can’t use it.<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>The prop will strike at a =
normal=20
rotation.<SPAN style=3D"mso-spacerun: yes"> </SPAN>So I did some =
measuring=20
... and unless I’m crazy ... it looks like I need 30” =
blades to be safe!<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>That’s only a =
60”=20
prop!<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Can that be so?<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>I believe I did not =
exaggerate the=20
rotation.<SPAN style=3D"mso-spacerun: yes"> </SPAN>And my plane =
in=20
standard in every way (except for the =
engine).<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">The factory told me I =
could expect=20
a problem with clearance ... but they said they had a plane there that =
flew=20
away with my combo and a four-blade prop. <SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>Was it longer than =
60”?<SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>Was the point of rotation =
changed by=20
moving the gear? (that would be too late for =
me).<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">What is the=20
alternative?<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">My prop show (an MT =
Dealer) says=20
the factory may be able to come up with a custom five-blade prop for =
my 325=20
horsepower configuration. <SPAN style=3D"mso-spacerun: =
yes"> </SPAN>Of=20
course, I would only have to get a large home equity=20
loan!<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">HELP!!!!!!!!<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt; mso-no-proof: =
yes"> </SPAN><o:p></o:p></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: =
12pt"><o:p> </o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML=
>
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