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Berman's 7.3 build
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[QUOTE="backwoodsboy, post: 979244, member: 5415"] The fundamental equation is: P = Po + dgh Po = atmospheric pressure at sea level (101 kPa) d = density of air g = gravity (9.8m/s^2) h = vertical distance in meters This is skewed, as air is a compressible fluid. As such, density is not constant. You can use integrals though. They more direct approach is: p = 101325 (1 - 2.25577*10^-5)5.25588 where p = air pressure (Pascal (Pa)) h = altitude above sea level (m) 1 Pa = 0.000145037738 pounds per square inch Or you can do what engineers do and look at a table: [url]http://www.sablesys.com/baro-altitude.html[/url] [/QUOTE]
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