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Forum: General Sailing Forum 21-12-2009, 20:10
Replies: 155
Views: 26,423
Posted By Captain Bill
Indeed the equations to calculate rotational...

Indeed the equations to calculate rotational torque do include air density. If you note the requirements for calibration all require the precise knowledge of the air density or barometric pressure...
Forum: General Sailing Forum 19-12-2009, 21:30
Replies: 155
Views: 26,423
Posted By Captain Bill
I hate to get involved in this but..... ...

I hate to get involved in this but..... Anemometers measure Indicated airspeed just like aircraft Pitot tubes do. A British NACA study testing a cup anemometer in a wind tunnel at know calibrated...
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