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I would like to know what the optimum volume is. It is interesting to note that Tracy is using two cores and had a duct problem with one and had sufficient cooling. See cooling test at his web site. I think he changed the inlet and improved the cooling. The type of AC fast vs slow is important (high power at low speed) like climb out . If we optimize the inlet how small could the rad be? I think a pusher would be a perfect bed for a long duct. Worse case would be ground cooling.
At 11:01 AM 11/19/2003 -0600, David Carter wrote:
408 cubic inches is short of the 600 to 750 that are being used
successfully. I posted my a/c core sizes yesterday - 336.65 cubic inches of
fin area X 2 = 673 cub inches - that will be enough.
David Carter
----- Original Message -----
From: "sqpilot@earthlink" <sqpilot@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, November 19, 2003 10:55 AM
Subject: [FlyRotary] radiator
Hi, fellow rotary enthusiasts.....I'm getting ready to order a radiator for
my 13b powered SQ2000 canard pusher. I talked to Al Wick, and he has a 160
hp Subaru powered Cozy and is cooling it very well with a radiator that is
17" x 7.25" x 3" deep. Any idea if that size might also cool a rotary? How
does that seem to compare with two GM evaporator cores? I was told that if
I can increase the height to 8 inches instead of 7.25, they can put two fans
on it, as well as the built-in Meziere EWP. I can work with the additional
height of 8 inches. Just don't want to spend $1100.00 for too small a
radiator. If 17x8x3 equates to approximately the same size as two evaporator
cores like Ed Anderson is using, I should be OK. If anyone can compare the
square inches of the two, I would sure appreciate it. Thanks in advance for
any and all efforts and recommendations. Paul Conner
>> Homepage: http://www.flyrotary.com/
>> Archive: http://lancaironline.net/lists/flyrotary/List.html
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