Message-ID: <20031221002351.1562.qmail@web60406.mail.yahoo.com>
Date: Sat, 20 Dec 2003 16:23:51 -0800 (PST)
From: ronald GOWAN <rongowan@yahoo.com>
Subject: Re: [FlyRotary] Re: evap core versus radiator
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-2898819@logan.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii

While thinking about cooling the rotary in flight
don't forget cooling the thing on the ground.  The RV
guys don't seem to have much of a problem but in a
Long EZ there was absolutely no cooling.  I tried an
electric fan behind the radiator.  All that did was
block the ram air and the fan over speed and came
apart.  On my new design I have a fan mounted
horizontally with a door to block the inlet so the air
is forced through the radiators.  With my first
installation I would pull back the power down wind,
coast to a landing while the water cooled and then
haul ass back to the hanger.  My new installation with
a Marcotte PSRU should be flying this coming summer. 
--- Ed Anderson <eanderson@carolina.rr.com> wrote:
> 
> ----- Original Message -----
> From: "Marvin Kaye" <marv@lancaironline.net>
> To: "Rotary motors in aircraft"
> <flyrotary@lancaironline.net>
> Sent: Saturday, December 20, 2003 11:46 AM
> Subject: [FlyRotary] Re: evap core versus radiator
> 
> 
> > Posted for "sqpilot@earthlink"
> <sqpilot@earthlink.net>:
> >
> >   Hi again, Ed.  Thank you very much for going
> into the details of my
> > cooling system. My SQ2000 is a fairly fast
> aircraft. Normal climb speeds
> are
> > between 120 and 140 mph.  George Graham has a 13b
> powered side-by-side E
> > Racer, which has a similar profile to mine, and he
> said that he takes off
> > and climbs at 1/2 throttle. That statement, plus
> your input, makes me more
> > comfortable that this radiator will work for me. I
> am more concerned about
> > having a radiator that will cool my engine in
> cruise configuration, as
> > that's where I will be spending 95% of my time
> flying.  If necessary, I
> can
> > always climb in "steps", allowing the engine to
> cool before resuming
> climb.
> > The 16x10 radiator will make for a very neat,
> compact, and easy to duct
> > installation.  Thanks again for all of the time
> you have spent figuring
> out
> > the cooling capabilities for me.  Hope I can
> return the favor somehow in
> the
> > future.  Paul Conner, Mobile, AL
> >
> 
> Sounds like it should work in your application,
> Paul.  There is no question
> in my mind (and calculations ) that size radiator
> will easily cool you at
> Cruise even with 160HP.  My pleasure, trying to help
> figure this all out
> forces me to do some research and head scratching
> which keeps the old
> neurons refreshed {:>)
> 
> Just get in the air safely and that will be return
> enough.
> 
> Ed Anderson
> 
> 
> 
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:  
http://lancaironline.net/lists/flyrotary/List.html


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