Explicit equations for barometric altitude computations

Sarma, GR (1976) Explicit equations for barometric altitude computations. Journal of Aircraft, 13 . pp. 1017-1018. ISSN 0021-8669

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    Explicit equations involving only square root and summation operations are derived for computing barometric altitude from measured data. Three different expressions are obtained for the altitude ranges -1,000 ft to 32,500 ft, 32,500 ft to 45,000 ft, and 45,000 ft to 60,000 ft, which satisfy the accuracy requirements for pressure altitude given in an ARINC specification. Although implementation of the equations would not offer many advantages where advanced digital computation techniques are available, they go along with the equations for Mach number and airspeeds in the explicit forms given by Bogel (1974).

    Item Type: Journal Article
    Additional Information: Copyright for this article belongs to AIAA
    Uncontrolled Keywords: Mathematical analysis;Computation;Barometers;Digital computers;Accuracy;Specifications;Aircraft;Airborne/Spaceborne computers;Aircraft instruments;Altimeters;Error analysis;Flight altitude;Air navigation; Airspeed;Barometers;Computation;Mach number;Pressure effects
    Subjects: AERONAUTICS > Avionics & Aircraft Instrumentation
    Division/Department: Systems Engineering Division
    Depositing User: Ms. Alphones Mary
    Date Deposited: 23 Feb 2010
    Last Modified: 24 May 2010 09:40
    URI: http://nal-ir.nal.res.in/id/eprint/1186

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