Paul Lamar wrote:
Ironically the inventors did not think it good for ICE
combustion air intake either which I found rather
strange. If good for jet why not ICE? I at first
assumed ICE's used more air than could be rammed in.
On the other hand the Moony ram air intake is worth 1/2
an inch of Hg MAP. Most of the fast race planes use ram
air intake sans air cleaner. Tracy Crook included.
I find it doubtful that an ICE would use more air than a jet (assuming
roughly equal rating power plants). I wonder if the discontinuous use
of air by an ICE is the reason? I'm envisioning the pressure pulses
traveling back up the intake to the NACA duct and playing hell with the
fluid dynamics.
Russell Kent
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