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<DIV><FONT face=Arial size=2>Eric:</FONT></DIV>
<DIV><FONT face=Arial size=2>Thanks for all the info and research that you so
willingly pass along to all of us...... You've really got it going on.....
except for one little thing.......</FONT></DIV>
<DIV><FONT face=Arial size=2>Go Colts!!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Eric.Henderson@gartner.com
href="mailto:Eric.Henderson@gartner.com">Henderson,Eric</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, January 12, 2004 6:29
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Another reason to fly 2-cycle -
OS 1.60's</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2>(Jimbo, I wonder what the dB's are on that set
up.??)</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff size=2>In
the absence of a rear exhaust 1.60 or 1.80 from OS many of us have turned
to the 1.60 FX side exhaust. A stainless steel bearing is readily
available, so fly and drain is the order of the day. It is also a big bearing
and handles the prop loads very well.</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff size=2>Most
of you know that I have been running them along side YS L's DZ's Webra's,
Mintor 1.70s and OS 1,40's. I also have a couple of OS 1.60 FI versions
that are trouble free. No injector issues so far. Many contests were flown
with a Focus because the header fitted inside. Lately I flew my Temptation
with the Mueller-special elbow exposed a la YS.</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff size=2>The
std OS 1.60FX uses exhaust pressure and I just could not bring myself to tap a
hole, for a low pressure feed, in my CF pipes. Success was achieved with the
Perry pump and in particular with the Cline regulator. Did need some extra
plumbing and finger over the carb for 1st start of the day fuel
draw.</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2>Through most of the end of 2003 I flew my OS 1.60's with an OS 1.40
pump fitted to the backplate. It was easily the easiest system to operate.
Just like 1,40RX. There is no pressure in the tank which is personally
preferable in hot weather conditions. The modification did require my Sherline
mill and lathe. It is not just a simple case of machining the out the
backplate. A 1/8" stand-off ring is required and some judicious 2.5
tapping.</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff size=2>The
engine ran just like the FI but I would have liked a slightly richer top end
without fattening the carb too much in the mid range. The engine never
faltered, but it used more fuel when set the that way. The 1.60 FI lets you
tune the middle and top end. The 1.40 RX carb will fit the 1.60FX and is
reported to do better. I think that I will go the way of Jeff Carrish and Earl
Vincent. They fitted OS MC carbs to their planes. It is so much more effective
to set seven points on a 10X.</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff size=2>From
a weight point of view you save weight using this integral pump
versus the FI electronics module and wiring etc. You can also save 1-2 oz on
the prop driver and the prop washer. (Sherline again). I could save more if I
could drill and tap the prop-shaft for the spinner nut. This gets the engine
close to the DZ in weight. In the power dept., most of the engines mentioned
above will be good up to a 17 x 12, The OS 1.60 can handle the 17 x 13 and is
very quiet. Less than 90 db over hardtop.</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff size=2>This
season will be 2-c's for me unless of course there is a YS 1.60 DZ. They
only thing that could draw me a way from this plane would be a YS 1.80 rear
exhaust </FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff size=2>Go
Pat's and Eagles,,,,</FONT></SPAN></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2>Eric.</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2>P<SPAN
class=546515022-12012004>.</SPAN><SPAN class=546515022-12012004>S. The twin
plug head OS 1.60 FX experimental version was a pain. It ate the OS "F" plugs
and many A3's and A 5's. Was just a reliable and idled slow with one F. I use
it now with one dead plug. </SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=546515022-12012004></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=546515022-12012004>P.P.S. There is a website out there in Sweden, I
think, who also has done this. Mounts his engine sideways> Uses a
more regular header etc. Pretty neat set-up in a German
Rhapsody.</SPAN></FONT></FONT></FONT></DIV>
<DIV><SPAN class=546515022-12012004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>Woodward James R Civ
412 TW/DRP<BR><B>Sent:</B> Monday, January 12, 2004 5:46 PM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> Another reason to fly
2-cycle<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">OS 160 users, checkout this setup
for $95.00!!!! <A
href="http://www.ohiomodelplanes.com/acc/">http://www.ohiomodelplanes.com/acc/</A></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I called and John said that it is
"feather-weight."</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jim W.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV></BLOCKQUOTE></BODY></HTML>