flyrotary@lancaironline.net Mailing List Archive

in that article they mentioned that optimal entry duct length is 2 to 3 times the height or width of the radiator, whatever is greater. with my belly-mounted radiator, 8 x 22", that means I need something between 4 and 6 feet? since I am eyeball engineering this thing and mimicking the p-51 I have an entry duct closer to 22" in length. does this seem reasonable? with a 6' scoop perhaps I could make water landings :-)

Kevin Lane Portland, OR
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----- Original Message -----

From: Ed Anderson

To: Rotary motors in aircraft

Sent: Friday, January 16, 2004 5:18 PM

Subject: [FlyRotary] Cooling Article - SportAviation Mag

Excellent article in EAA Sport Aviation Mag I received today, on liquid cooling. In reading it, much seemed familar and sure enough one of the two references is Kuchemann and Weber. They also point out that the Streamline Duct is a more practical alternative to the 7 Deg optimum duct for aviation use as well as other useful information. Well worth reading.

Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC