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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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