This is exactly how aircraft measures airspeed.=20

Older aircraft fed the air directly to a pressure gauge - if I remember =
rightly it needs to be differential pressure - the reference being normal =
atmospheric pressure.


>>> joecolquitt@CLEAR.NET.NZ 01/27/02 03:28PM >>>
As you're working with moving air anyway, what about
a pitot tube made from a pressure sensor

Wouldn't the air speed at a point on the object imply the
(perpendicular) force. You could measure wind speed
at various point using cheap DC motors as anemometers

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