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<DIV><SPAN class=140502105-24052009><FONT face=Arial color=#0000ff
size=2>Complete heli: Raptor 50, OS Hyper 50 (approx 2 gals through
it)</FONT></SPAN></DIV>
<DIV><SPAN class=140502105-24052009><FONT face=Arial color=#0000ff
size=2>
Futaba 401 gyro and 9254 tail rotor servo</FONT></SPAN></DIV>
<DIV><SPAN
class=140502105-24052009>
<FONT face=Arial color=#0000ff size=2>DS821's all other controls, Futaba low ban
PCM receiver and 1100 mah bat.</FONT></SPAN></DIV>
<DIV><SPAN
class=140502105-24052009>
<FONT face=Arial color=#0000ff size=2>New Mavrick all metal head and Funkey
carbon main blades. Heli flys really nice</FONT></SPAN></DIV>
<DIV><SPAN
class=140502105-24052009>
<FONT face=Arial color=#0000ff size=2>All for 650.00 plus
shipping.</FONT></SPAN></DIV>
<DIV><SPAN class=140502105-24052009><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=140502105-24052009><FONT face=Arial color=#0000ff
size=2>Thanks</FONT></SPAN></DIV>
<DIV><SPAN class=140502105-24052009><FONT face=Arial color=#0000ff
size=2>Larry</FONT></SPAN></DIV>
<BLOCKQUOTE>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of </B>Bob
Kane<BR><B>Sent:</B> Saturday, May 23, 2009 9:17 PM<BR><B>To:</B> General
pattern discussion<BR><B>Subject:</B> Re: [NSRCA-discussion] The good, the
bad, and the ugly<BR><BR></FONT></DIV>
<DIV
style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif">I
replaced mine after two seasons, but I am not flying a lot. I saw Vere's
answer, I would add to that any slop felt at the prop tips is a sign, so is a
slowing idle speed. That is what my engine was doing, I had to bump up
the idle end point or it would idle too low.<BR>
<DIV> </DIV>Bob Kane<BR>getterflash@yahoo.com
<DIV><BR></DIV>
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style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif"><BR>
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style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif"><FONT
face=Tahoma size=2>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Michael Cohen
<precisionaero@hotmail.com><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B>
nsrca-discussion@lists.nsrca.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, May 22, 2009 7:45:43
PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re:
[NSRCA-discussion] The good, the bad, and the ugly<BR></FONT><BR>
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For those of you on the edge of your seat waiting to hear what was the likely
cause ..... well....... a neighbor with a gear puller helped me pop
of the thrust washer and after removing the crank shaft, I found the main
bearing had eaten itself. The race had come apart and the
balls we free to slap around. The bearing probably went first
allowing the crank to wobble taking on the connecting rod. Bob
Kane has come to my rescue with pieces of Mark Atwood's old and damaged
160DZ. I will attempt to make one running engine out of
two.<BR> <BR>I have not heard of bearing failures with YS engines.
I is there some preventative maintenance I could have done to keep this from
happening? Did I make some mistake that leads to this kind of
failure? Is it just one of those things that is bound to happen one
of these days?<BR> <BR>
<HR id=stopSpelling>
From: precisionaero@hotmail.com<BR>To:
nsrca-discussion@lists.nsrca.org<BR>Date: Thu, 21 May 2009 04:58:52
-0600<BR>Subject: Re: [NSRCA-discussion] The good, the bad, and the
ugly<BR><BR>
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Low viscosity PowerMaster DZ blend, 30% nitro, 20% synthetic is the
fuel. I had replaced the ring a few months ago, so I had taken
apart most of the engine and re-assembled it using Klotz so it would
not be dry the first time fuel ran through it. By the way, I was 1.75
turn out on the main needle. That seemed to be the RPM sweet spot +1/8
turn rich for good luck. The pump was just right, the engine would
chug along at 1900 RPM with a 4 blade nicely. I had a nice smoke trail
too, almost until the abrupt stop.<BR> <BR>
<HR id=EC_stopSpelling>
Date: Wed, 20 May 2009 19:08:40 -0700<BR>From: getterflash@yahoo.com<BR>To:
nsrca-discussion@lists.nsrca.org<BR>Subject: Re: [NSRCA-discussion] The good,
the bad, and the ugly<BR><BR>
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<DIV
style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif">Sorry
to hear about your streak of bad luck. What kind of fuel? Was the
engine stored with after run oil? <BR>
<DIV> </DIV>Bob Kane<BR>getterflash@yahoo.com
<DIV><BR></DIV>
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style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif"><BR>
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<HR SIZE=1>
<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Michael Cohen
<precisionaero@hotmail.com><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B>
nsrca-discussion@lists.nsrca.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, May 20, 2009 8:24:18
PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B>
[NSRCA-discussion] The good, the bad, and the ugly<BR></FONT><BR>
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The Good: I finally got out to fly today and put up flights 6 and 7 for
the season.<BR> <BR>The Bad: To say I practiced flying the Masters
Pattern might not hold up in court. It had looping segments (of various
radii), straight lines (some of very, very short length), roles (lets talk
about mortgage rates instead); in other words, it had all the basic
elements. It also could be argued that I was flying the Wonkavator, up
ways and down ways, sideways and back ways and
slantways......<BR> <BR>The Ugly: 5 minutes into flight #2, the
engine stopped. After a fun crosswind glide, I took the engine apart at
the field to find the crankshaft-piston area very dry with shaving's
everywhere, a mashed and bent (sort of) connecting rod, and a damage to the
rotary valve. I need to take pictures and post them because I have never
seen damage like this. It looks like lubricating oil was unable to get
into the region and the engine just ate itself.<BR> <BR>This was my 160DZ
and is on the heals of breaking the shaft that supports the rocker arms on a
140DZ suddenly a month or so ago. Is there something wrong with the
lubrication system on these motors due to some kind of blockage? Any
suggestions on what to check would be appreciated. The engines all
looked clean and free of and kind of FOD when I took them apart and
re-assembled them this late winter/early fall. Before I go killing my
last 170DZ, I am open to what people think I should look for (beside an OS,
going electric, or gas).<BR> <BR>Mike Cohen<BR>D4<BR><SPAN
class=EC_EC_squiggly
title="To see spelling suggestions, click this word"></SPAN> <BR><BR>
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