[SEL] The McVickerish Engine

[Larry Evans]

Rob,

It was fun.  The sound of about 1200 cubic inches of air per cylinder 
coming out of the 1/2 inch pipe compression release during the upstroke is 
quite impressive.

Larry

At 03:50 PM 3/23/2010, you wrote:

>On Mar 23, 2010, at 9:50 AM, Larry Evans wrote:
> > This reminds me of an experiment I ran a while back with the 50 hp.
> > Fairbanks Morse spark ignited engine at the Mount Wilson
> > Observatory.  What
> > I did was run the engine up to its regulated speed of 290 rpm. and
> > then
> > killed the ignition and fuel to shut it down.  It took 2 minutes and
> > 45
> > seconds to come to a complete stop.  I then did the exact same thing
> > but
> > also opened the compression releases at shut down.  It took just 2
> > minutes
> > to come to a stop which indicates to me that governing against
> > compression
> > probably is a little more efficient than not.
>
>Sounds like a fun experiment, Larry.
>
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Larry Evans
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