Next page. Sorry guys it don't look good for rads.

Paul Lamar

"Rogers, Bob J." wrote:

What if the NACA duct is located on the nose bowl below the spinner so that
the air is not flowing parallel to the duct opening but rather, is entering
the opening at as much as a 45 degree angle?  Wouldn't that greatly increase
the pressure of the air entering the inlet?  I am referring to a
front-mounted engine (tractor) that has a traditional nose bowl, which
slopes down to the bottom of the engine cowling.

The problem is the NACA duct works only when there is little or no 
internal restriction to the airflow. That is what makes it unsuitable
for radiators or heat exchangers.

Paul Lamar
 
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