Attached is a picture of a Cessna 337 intercooler mod done to Skymasters, on
the cowl. Food for thought when you need that extra oil cooler or intercooler
attached. What do you think of the design for airflow?
Marc

I get the impression they had to modify the pure NACA duct because it
was not in an area where the boundry layer was a minimum and perhaps
even in an area were the pressure was  neutral or low.

Paul Lamar
 
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