Paul:
    FYI


Alex Kozloff
Kozloff Enterprises

Excellent work Alex! You did and excellent job.
Well documented.

Looks like we have a serious problem with that scoop.
Lower left corner is getting all the air.

I guess we need something other than duct tape
to hold the cowl prob in the cowl :)

We also have slight positive pressure in the cowl at 4000 RPM
and lower than static at 110 MPH. Very good.

Either that or the pressure in the cockpit is lower at 110 MPH.
But then you air speed indicator would be off.

Paul Lamar

thanks for the spread sheet Alex.

Classic example of how hard it is to have uniform air flow and
good pressure recovery in a heat exchanger located immediately
behind a cowl cheek intake scoop. There is just not enough
distance in there to put a proper 2.5X K & W diffuser. This is why
I harp on everybody to use a Kay's & London wedge diffuser
under the engine.

Paul Lamar


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