 Re: Running props over square?
Quote:
Originally Posted by SteveC  This discussion always cracks me up a little. The numbers are purely arbitrary based on which units of measurement are chosen. It's just a coincidence that pressure (inches of water column) has the same numbers as the first two digits of the rotation speed (revolutions per minute). I have a hard time imagining that the same rule of thumb would have come into being if we were talking about 43 mm Hg and 38 Hertz. Or 57 mbar and 241 radians per second.
They're just numbers. | How about the WWII German and Brit fighters in 'atmospheres'?
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