Doug wrote:

>From the last sentence...

Also, don't ingest the boundary layer if you plan on significant
recovery of dynamic pressure.

Is that the reason that the P51 and powersport RV have their scoop dropped
down from the fuselage? It always looked like that air would boil around
above the top lip.
Doug

Yes. The idea with a fairly narrow scoop like the P51 is the air is diverted
to the sides above the intake. The wider the scoop the more difficult it 
is to do this and still keep the drag low. The ideal scoop shape is a 
a round hole. Maximum intake area for minimum internal and external
surface area that causes air friction.

Paul Lamar
 
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