<DIV>Jim,</DIV> <DIV> </DIV> <DIV>The YS four-strokes do not depend on blow-by to lube the bottom end. The bottom end is actually used to supercharge the engine, so the fuel-air (and oil) enters the bottom end first before being pumped into the top end.</DIV> <DIV> </DIV> <DIV>Bob R.</DIV> <DIV><BR><BR><B><I>jivey61@bellsouth.net</I></B> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Arch<BR>I would be concerned about the engine 160DZ oiling itself at that<BR>Rpm.Running continous at that rpm there may not be enough blow-by to oil the<BR>lower end,much less push oil to the cam and lifters. My experience was with<BR>a OS40 4S on a put-put around Buzzard Bombshell. I replaced mains and cam<BR>and rockers twice because of oiling problems at low rpm. Your engine<BR>reliability may be a problem.<BR>Just some thoughts.<BR><BR>Jim Ivey<BR><BR>----- Original Message ----- <BR>From: "Arch Stafford"
<RCPATTERN@COMCAST.NET><BR>To: "'NSRCA Mailing List'" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>Sent: Monday, December 19, 2005 7:08 PM<BR>Subject: RE: [NSRCA-discussion] DC Area Clubs<BR><BR><BR>> That is actually in the works. We have a total of 6 prototypes to build.<BR>I<BR>> picked the YS because of fuel delivery, and actually fairly low fuel draw<BR>at<BR>> low throttle settings. It cruises at about 4000RPM and it sips fuel at<BR>that<BR>> RPM. There will be at least one more with YS, then one or two with<BR>> electric, one with a DA-50, and then still playing with other motors.<BR>Long<BR>> term goal in production is a diesel engine, but unfortunately not many or<BR>> any diesels in the HP range with reasonable weight.<BR>><BR>> -----Original Message-----<BR>> From: nsrca-discussion-bounces@lists.nsrca.org<BR>> [mailto:nsrca-discussion-bounces@lists.nsrca.org] On Behalf Of Scott<BR>> Anderson<BR>> Sent: Monday, December 19, 2005 6:49
PM<BR>> To: NSRCA Mailing List<BR>> Subject: Re: [NSRCA-discussion] DC Area Clubs<BR>><BR>> Arch,<BR>><BR>> Cool looking plane wish it was in Knoxville,TN for testing... Hmm YS what<BR>> about electric ?<BR>><BR>> Scott Anderson<BR>> D3 AVP<BR>> ----- Original Message ----- <BR>> From: "Arch Stafford" <RCPATTERN@COMCAST.NET><BR>> To: "'NSRCA Mailing List'" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>> Sent: Monday, December 19, 2005 6:33 PM<BR>> Subject: [NSRCA-discussion] DC Area Clubs<BR>><BR>><BR>> > Guys,<BR>> ><BR>> > I need some help. Later this week, Wednesday or Thursday I have an<BR>> > airplane<BR>> > that we are currently testing for work on, that I need to fly for a<BR>client<BR>> > of ours who works in the Pentagon. Its purely RC, 16' wingspan, weighs<BR>> > about 25lbs. I need to find a club within 30 minutes or so of DC that<BR>we<BR>> > can fly at. Here are some pics, and a
short video www.iron-bay.com<BR>I'll<BR>> > be happy to let anyone who can help fly it a little bit. Basically he<BR>> > just<BR>> > wanted to see the airframe perform. Looks like a giant hobbico aerobird<BR>> > basically with a YS 1.60DZ pushing it along.<BR>> ><BR>> > Thanks in Advance,<BR>> ><BR>> > Arch<BR>> ><BR>> ><BR>> > _______________________________________________<BR>> > NSRCA-discussion mailing list<BR>> > NSRCA-discussion@lists.nsrca.org<BR>> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>><BR>> _______________________________________________<BR>> NSRCA-discussion mailing list<BR>> NSRCA-discussion@lists.nsrca.org<BR>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>><BR>> _______________________________________________<BR>> NSRCA-discussion mailing list<BR>> NSRCA-discussion@lists.nsrca.org<BR>>
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