----- Original Message -----
Sent: 11/15/2007 1:43 PM
Subject: [FlyRotary] Re: Harrison
cores
I am absolutely amazed at how well the GM evap. core is cooling the oil
on my 20B installation. Cooling well at WOT on the ground! I would
have previously thought this was not possible with a thick heat
exchanger. It does have the best diffuser I've built to date on it and
has prop blast into it.
Tracy
On Nov 15, 2007 1:33 PM, <
Lehanover@aol.com> wrote:
The Harrison built (same as Corvette radiator) used in air conditioning
in full sized GM cars are designed to flow a major amount of air. They are
cheap even when bought new. They transfer heat as good as anything you can
find. They are compact. Two of them can dump the heat from most any rotary
installation. Two of them for coolant and one for oil has been proven in a
number of installations.
If you want less cooling drag build the radiators into the wing skins
like a Supermarine racer.
I raced for years with one Harrison core for oil cooling in front of
the water radiator. A poor installation with heated air going through the
water radiator, but it worked just fine.
Lynn E.
Hanover