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<DIV><FONT face=Arial size=2>Stavros I have been running the 91FX about 3 years
and am very fond of it. You will need to run the sealed bearings that are
availiable from Boca Bearing. It is important that the crankcase get adequate
cooling. I run a pipe length of 24" face of exh to baffle and use the following
props : 14.5-11 4bl, 17-10N cut to 16", 30% nitro. You can easily handle
up to 9#. You can get the crankcase pump OS sells for the new heli
engine. Good
luck Nat Penton</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=sioann@tee.gr href="mailto:sioann@tee.gr">Stavros Ioannidis</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 19, 2004 6:55
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: OS 91 FX suitability</DIV>
<DIV><BR></DIV>
<DIV><FONT face="Comic Sans MS" color=#800000>Thank you Matt K. and everyone
else who answered to my letter.</FONT></DIV>
<DIV><FONT face="Comic Sans MS" color=#800000>I am in Greece and since my last
pattern plane is allready ten years old (Conquet IV)and a two meter plane is
too much (and expensive) for our local competition (and F3A
practicing),</FONT><FONT face="Comic Sans MS" color=#800000> I choosed
the Swallow with OS 91 FX but my concern is the bad rumors
that I heard about the OS 91 FX (needle valve assembly, ABN
plating etc) and I wonder if a 4C is more suitable for my plane.</FONT></DIV>
<DIV><FONT face="Comic Sans MS" color=#800000></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Rcmaster199@aol.com
href="mailto:Rcmaster199@aol.com">Rcmaster199@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Δευτέρα, 19 Απριλίου 2004 6:49
πμ</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: OS 91 FX suitability</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 face=Arial size=2
PTSIZE="10" FAMILY="SANSSERIF">Yia sou Stavre. <BR><BR>The OS 91FX will work
fine in this application. My friend Nat Penton uses the engine on his 8+
pound models, and also has adapted the Perry pump on the backplate. His pipe
length is longish by many standards but it needs to be since he turns a
17x10N 2 blade or the small 4 blade apc props (13.5x11 4 blade)<BR><BR>Are
you in Greece or US?<BR><BR>Matt K <BR><BR><BR>
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<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px"
TYPE="CITE">----- Original Message ----- <BR><B>From:</B> <A
href="mailto:sioann@tee.gr">Stavros Ioannidis</A> <BR><B>To:</B> <A
href="mailto:discussion@nsrca.org">NSRCA</A> <BR><B>Sent:</B> Sunday,
April 18, 2004 1:56 PM<BR><B>Subject:</B> OS 91 FX
suitability<BR><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face="Comic Sans MS" color=#800000
size=2 PTSIZE="10" FAMILY="SCRIPT" BACK="#ffffff">I want to haul a
Swallow 90 for using it in aerobatics. Is the OS 91 FX a reliable engine
or there is a better choice ? Any suggestions ? Thank you in
advance.</FONT><FONT lang=0 style="BACKGROUND-COLOR: #ffffff"
face="Comic Sans MS" color=#000000 size=2 PTSIZE="10" FAMILY="SCRIPT"
BACK="#ffffff"><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face="Comic Sans MS" color=#800000
size=2 PTSIZE="10" FAMILY="SCRIPT" BACK="#ffffff">Stavros I.</FONT><FONT
lang=0 style="BACKGROUND-COLOR: #ffffff" face="Comic Sans MS"
color=#000000 size=2 PTSIZE="10" FAMILY="SCRIPT"
BACK="#ffffff"><BR></BLOCKQUOTE><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
PTSIZE="10" FAMILY="SANSSERIF"
BACK="#ffffff"></BLOCKQUOTE><BR><BR></BLOCKQUOTE></BLOCKQUOTE></FONT></FONT></BODY></HTML>