flyrotary@lancaironline.net Mailing List Archive

Hi Tommy,

I mispoke (senior moment) about my cowl exit area, I measured it today and it is 4.5x28" which gives me close to a 1.7 ratio not counting the louvers.

Ed Anderson

----- Original Message -----

From: Tommy James

To: Rotary motors in aircraft

Sent: Wednesday, August 06, 2003 7:49 AM

Subject: [FlyRotary] Re: Cooling / Pressure recovery

Ed, If your flap outlet area is 3x20=60sq" . Your oil cooler inlet is ~24sq" and (at 1:1 ratio) that would leave only ~36sq"/2=18sq" for each rad inlet. Since they seem larger than that, how do you get by with the relatively small inlet to outlet ratio, that is less that 1:1?

Does this question make sense? I'm trying to redesign my oulet size to a total of something larger than inlet area which I estimate at a total ~90sq"

Regards,

Tommy James<><

Cool in NC, Hot in FL