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Old 01-31-2021, 01:11 AM   #12 (permalink)
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I gave it my best shot in 2014(!):

The Idea was the positive displacement cooling air is ducted into a vertical stack that is perforated or baloney-cut on the front face. It is surrounded by a stainless steel concave reflector that truncates the boat tail.

Instead of volumetrically replacing the wake it uses the heat energy to 'wrap around' the airflow via the Coanda effect.

IIRC the exhaust and cooling air are both 1500cfm, but the exhaust is corrosive.
Ringo Starr: "What key is it in, Robby?"

Face the danger and row away from it.
David B. Frohnmayer
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