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<DIV><SPAN class=643250801-30052003><FONT face=Arial color=#0000ff size=2>Good
question! I flew on YS's for 10 years. Loved the power, got real tired of the
cost of ownership. At near $500 (140 sport) to $700 (DZ) plus exhaust system,
they just got to rich for my blood. I figured if I was going to go over to the
Dark Side and try a big block 2 stroke I'd do it as inexpensivly as possible to
see if it could be done. Well, so far it's working. We'll see if this set can
stay reliable in the long run.</FONT></SPAN></DIV>
<DIV><SPAN class=643250801-30052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=643250801-30052003>
<P><FONT size=2>Gene Maurice<BR>gene.maurice@attbi.com<BR>Plano, TX<BR>AMA
3408<BR>NSRCA 877 </FONT></P></SPAN></DIV>
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<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>Anthony
Abdullah<BR><B>Sent:</B> Thursday, May 29, 2003 3:50 PM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> RE: Mintor eyes only/Power wish
list<BR><BR></FONT></DIV>
<DIV>That sounds a lot like what teh ST2300 promised, but it had the one acre
head size that kind of kept it from being widely pattern user friendly or
accepted. On one hand I think we like paying too much, on the other you trust
that the majority of the pilots will use what works and is reliable. It all
makes me wonder why that is not the preferred power plant. Mind you, I am
shopping new engines and very open minded. I actually prefer two strokes but
find it hard to leave YS. There is also something to be said for being able to
borrow a header, a coupler, an O-ring, or even technical advice at a
contest, because you know that is where you will have trouble. With those
numbers why are people still paying more for the OS 140 RX?<BR><BR><B><I>Gene
Maurice <gene.maurice@attbi.com></I></B> wrote:
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<DIV><SPAN class=464273118-29052003><FONT face=Arial color=#0000ff
size=2>OK, try this on for size OS160FX (< $250), Perry Regulator Pump
($27), KM Header ($45), Mac's 15cc Quiet Pipe ($78), AFC SS double sealed
bearing ($15), total cost right at $400 INCLUDING exhaust system!!
NOW the kicker: APC 17x12 standard blade (read wide) 8300 RPM (APC 16.5x13 W
turns about the same) on Magnum 15%, idles at < 1800 RPM all day
long, transitions almost "4 stroke like". Though it has not been measured
with a sound meter, I dont think over the limit. If it is, a 17x13 or 17x14
would probably do the trick.</FONT></SPAN></DIV>
<DIV><SPAN class=464273118-29052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=464273118-29052003>
<P><FONT size=2>Gene Maurice<BR>gene.maurice@attbi.com<BR>Plano, TX<BR>AMA
3408<BR>NSRCA 877 </FONT></P> </SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<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>Anthony Abdullah<BR><B>Sent:</B> Thursday, May 29, 2003
10:34 AM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Mintor eyes
only/Power wish list<BR><BR></FONT></DIV>
<DIV>I am eagerly watching the posts on engines and am very excited about
the choices available. I must say that it says an awful lot about the
YS140 DZ 4 stroke that it is even in the same power range or even superior
to a significantly larger 2 stroke. I remember back in the day that
a plane that would fly on a 60 two stroke needed at least a 90 to 120
four stroke to fly. Boy have things changed. I am still sitting on my
wallet with my fingers crossed hoping that YS will introduce a 140 or
160 AR two stroke. Black machined finned head and all. It will be
reliable, run with the currently available ES and other pipes, Idle
smoothly, snap transition with no mixture change at mid range, spin a
17x12 at 8400 RPMs with a flat torque curve, have a totally linear
throttle curve, and sealed bearings. All for around 4 bills. </DIV>
<DIV> </DIV>
<DIV>Then I woke up. <BR><BR><B><I>"Henderson,Eric"
<Eric.Henderson@gartner.com></I></B> wrote:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">In
case you have had enough of this topic just hit CRTL-D<BR><BR>If you
have not had enough, here is today's lunch results.<BR><BR>It was warm
and muggy today after all of the rain. The Mintor had the "target" 17 x
13 APC strapped on the front. With three gallons through the engine it
was time to really see what the 1.70 was made of! Engine was set at
7,900 rpm on the ground using Powermaster 15/16. The Hydeout was ready
for the ride. <BR><BR>Here's how it flew P-03, or at least a description
of a few of the maneuvers as I saw them unfold.<BR><BR>Sq. loop on
corner - Straight and level into the 45 climb at 1/3 throttle. Nice even
pull. Increase power around the first corner to 3/4. Perform 1/2 roll
and got on to full power (WOT). Plane continues on at slightly increased
and smooth speed with the real need to back of the gas over the top
corner. Long down line 45's and the engine responds smoothly on the
bottom pullout to level. No gurgle. Upon reflection it was a big loop
before I noticed.<BR><BR>Hour glass - very similar with a lot of grunt
on the up 45 line.<BR><BR>All vertical lines were easy with a big punch
over the top of maneuvers such as Humpty-bumps. The down lines were
flown very long to look at speed etc. The idle can be set low and it
does not quit. This helped the down lines and allowed pull-outs that did
not bend the wing tubes. The idle for spin entry was actually too low
and a purr had to be added to both reach the middle and get the nose
up.<BR><BR>The big test was the figure-9 with 3 x 1/2 rolls going up. An
entry at 1/4 throttle as I pushed followed by a incrementing amount of
throttle as each 1/2 roll was executed ending in full throttle over the
top of the 9. This was a big 9. Too big for good points but just right
for free adrenaline shots!<BR><BR>So how does it (1.70) compare with the
OS 1.60. About 200 rpm less on the ground but 4.0 oz lighter. Vertical
behavior very similar between equal weighted planes.<BR><BR>So how about
the DZ. In the same plane it was clear that the DZ had the edge in the
mid range grunt-dept. Vertical snap rolls were equal however in vertical
line recovery.<BR><BR>In the end it comes down to probably five things.
Price, Serviceability, Reliability, weight and price. Depending upon
what you need you can chose the performance of a 2-c or a 4-c the
personal taste of sound and throttle timing.<BR><BR>I would run all
three for equal fun, but as far as price goes, (The OS in this case is
an FI), the Mintor has a big
edge.<BR><BR>Regards,<BR><BR>Eric.<BR><BR><BR><BR><BR>====================================#
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