Properties of the U.S. Standard Atmosphere



( pressure at sea level  psl = 1.01325 E+05 N/m2 = 14.696 psi )



Geometric Altitude         Temperature         Pressure / psl 

    meters                   o K                 



    -500                    291.4                 1.061

       0                    288.2                 1.000

     500                    284.9                 0.9421

    1000                    281.7                 0.8870

    1500                    278.4                 0.8345

    2000                    275.2                 0.7846

    2500                    271.9                 0.7372

    3000                    268.7                 0.6920

    3500                    265.4                 0.6492

    4000                    262.2                 0.6085

    4500                    258.9                 0.5700

    5000                    255.7                 0.5334

    6000                    249.2                 0.4660

    7000                    242.7                 0.4057

    8000                    236.2                 0.3519

    9000                    229.7                 0.3040

   10000                    223.3                 0.2615