Mailing List flyrotary@lancaironline.net Message #29806
From: John Downing <downing.j@sbcglobal.net>
Subject: Re: [FlyRotary] Re: Cooling air inlets
Date: Mon, 30 Jan 2006 09:22:12 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Bob;  The 40 sq. will not cool the engine.  Ed and others are using a 2 1/2 inch x 10 inch hole under the spinner for the oil cooler, as more than half of the engine cooling is through oil, as I understand it.  I'm working on the oil cooler opening as well as the round holes to cool the coolant.  My exit is currently 61.8 sq. inches, so it appears that I need to add some type of cowl flaps to exit more air.  JohnD     from the farm
----- Original Message -----
Sent: Sunday, January 29, 2006 9:19 PM
Subject: [FlyRotary] Re: Cooling air inlets

That's good to know that you think around 40 square inches of air inlet will cool your motor. I'm planning to run an underbelly air scoop to the radiator that will have 51 sq. in. inlet. I had no idea if that would be enough. but from what you guys are saying, in should be sufficient for my 20B.
 
Bob Mears
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