[NSRCA-discussion] DC Area Clubs

[Bob Richards]

Jim,
   
  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.
   
  Bob R.
  

jivey61 at bellsouth.net wrote:
  Arch
I would be concerned about the engine 160DZ oiling itself at that
Rpm.Running continous at that rpm there may not be enough blow-by to oil the
lower end,much less push oil to the cam and lifters. My experience was with
a OS40 4S on a put-put around Buzzard Bombshell. I replaced mains and cam
and rockers twice because of oiling problems at low rpm. Your engine
reliability may be a problem.
Just some thoughts.

Jim Ivey

----- Original Message ----- 
From: "Arch Stafford" 
To: "'NSRCA Mailing List'" 
Sent: Monday, December 19, 2005 7:08 PM
Subject: RE: [NSRCA-discussion] DC Area Clubs


> That is actually in the works. We have a total of 6 prototypes to build.
I
> picked the YS because of fuel delivery, and actually fairly low fuel draw
at
> low throttle settings. It cruises at about 4000RPM and it sips fuel at
that
> RPM. There will be at least one more with YS, then one or two with
> electric, one with a DA-50, and then still playing with other motors.
Long
> term goal in production is a diesel engine, but unfortunately not many or
> any diesels in the HP range with reasonable weight.
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Scott
> Anderson
> Sent: Monday, December 19, 2005 6:49 PM
> To: NSRCA Mailing List
> Subject: Re: [NSRCA-discussion] DC Area Clubs
>
> Arch,
>
> Cool looking plane wish it was in Knoxville,TN for testing... Hmm YS what
> about electric ?
>
> Scott Anderson
> D3 AVP
> ----- Original Message ----- 
> From: "Arch Stafford" 
> To: "'NSRCA Mailing List'" 
> Sent: Monday, December 19, 2005 6:33 PM
> Subject: [NSRCA-discussion] DC Area Clubs
>
>
> > Guys,
> >
> > I need some help. Later this week, Wednesday or Thursday I have an
> > airplane
> > that we are currently testing for work on, that I need to fly for a
client
> > of ours who works in the Pentagon. Its purely RC, 16' wingspan, weighs
> > about 25lbs. I need to find a club within 30 minutes or so of DC that
we
> > can fly at. Here are some pics, and a short video www.iron-bay.com
I'll
> > be happy to let anyone who can help fly it a little bit. Basically he
> > just
> > wanted to see the airframe perform. Looks like a giant hobbico aerobird
> > basically with a YS 1.60DZ pushing it along.
> >
> > Thanks in Advance,
> >
> > Arch
> >
> >
> > _______________________________________________
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>
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