Sender: <marv@lancaironline.net> (Marvin Kaye)
To: flyrotary
Date: Wed, 23 Oct 2002 19:52:11 -0400
Message-ID: <redirect-1843590@logan.com>
Reply-To: <13brv3@mchsi.com>
From: <13brv3@mchsi.com>
Subject: RE: [FlyRotary] Re: Temp control with airflow
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The fan would work fine on the ground at taxi speeds (just
like it does on a car) but my guess is that it won't do much for you at
flight power settings.

But I'd love to be wrong about this :-)

Tracy
-------------------------------

Tracy, John and I will see what we can do to prove you wrong :-)  Large
(14"-16") fans are rated in the low 2000 CFM range for no load flow, and in
our application, we should have negative load at any reasonable airspeed.  I
would tentatively hope to fit a 16" x 32" x >=2" rad, with two 16" fans if
possible.  That would give 2000 CFM of flow, with >= 1024 cubic inches of
rad volume. Of course I can't make any real decisions until I get the engine
mounted and see how much space is available, so this is all a tentative
plan.

John, Why the Ferrari fan?  There are a number of nice aftermarket fans that
usually come with a thermostat sensor of one type or another.  An electric
fan was the only thing that saved me on a 65 Corvette that I restored.  That
car had an even worse radiator arrangement than the RX-7, and it was
compounded by trying to make a mechanical fan draw air at an angle through
the rad.  Electric fans are your friend :-)

Rusty
Turbo 13B powered RV-3... Be Afraid :-)
1993 RX-7 R1... Stock (for now)