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Tony, what you're looking at inside that scoop is a diffuser; it's purpose is to maximize the air pressure infront of the cooler - this is accomplished by the shape. See attached theoretical streamlined duct and a picture of a mold I made to approximate this shape for my radiator inlet ... they are both very similar to the picture you provided.
Jeff
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of tonyslongez@cox.net
Sent: Tuesday, January 12, 2010 11:52 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Scoops
can anyone shed some light? Is there an airfoil that makes up the scoop? and if so can we use different airfoils to get the desired cooling results say in a climb or unusual attitude. In other words can you stall the air going into the scoop. Or am I way off base here?
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