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HELP - Altimetry: Pressure Altitude


  Problem D: (Estimated time of completion 2 seconds*)
    At what Geometric Altitude will the temperature be constant (isothermal) for
that layer?
 

  1. Select the 0.00000 from and box in the lapse rate row.
      Click the mouse.
 

  2. You are done! Just read the desired results from the corresponding rows.
     In this case we wanted
Geometric Altitude. The Geometric Altitude is
     11,019.1 m, 36,151.8 ft, or 6.8469 sm.
 

     Important: There are times when a problem may have multiple solutions. For example there are two
     altitudes in which the temperature is -2.5 oC. At 8,836.7 ft and 168,676.1 ft, yet if you input - 2.5 oC
     on the Temperature row you will always get the solution that lies at the lowest altitude, that is,
     8,836.7 ft. This is always true for all other properties that have multiple solutions.

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     Note that it does not matter the order that you enter the rows. The remaining row (field) will
     be calculated based on the values of the other two rows when the Eval button of that row is pressed.

     * Time estimates are based on a person that already knows how to use the web site.

 

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Last updated on April 8, 2006