Upper Wind Representation and Flight Planning

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Abstract: This Survey is divided into four parts: (a) a representation of winds of space and time, which includes a tool for analysis, called the "geostrophic-gradient divider", and the "2-prog" and "4-prog" charts ; (b) flight planning tools: the 4-D plotter and the fixed-speed time-front plotter ; (c) methods of flight planning, including fixed-track flight planning, single-drift flight planning and emphasizing minimal flight planning, and (d) an interpolative system of minimal flight planning. Included are three appendices to do the following: (a) to derive the basic equation of minimal flight planning, to show why time fronts should be drawn omitting … continued below

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x, 72, [2] p. : ill., charts, tables ; 28 cm.

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Gringorten, Irving I. March 1957.

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Description

Abstract: This Survey is divided into four parts: (a) a representation of winds of space and time, which includes a tool for analysis, called the "geostrophic-gradient divider", and the "2-prog" and "4-prog" charts ; (b) flight planning tools: the 4-D plotter and the fixed-speed time-front plotter ; (c) methods of flight planning, including fixed-track flight planning, single-drift flight planning and emphasizing minimal flight planning, and (d) an interpolative system of minimal flight planning. Included are three appendices to do the following: (a) to derive the basic equation of minimal flight planning, to show why time fronts should be drawn omitting the crosswinds, and to show why time fronts prepared from one airspeed can be used on minimal flight paths with another airspeed ; (b) to show the advantage of 4-prog charts or derived 2-prog charts in representing vertical wind shears that are changing with time, and (c) to report on tests of the recommended procedures.

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x, 72, [2] p. : ill., charts, tables ; 28 cm.

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Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

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  • March 1957

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  • Dec. 17, 2018, 8:41 a.m.

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  • Jan. 2, 2019, 2:23 p.m.

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Gringorten, Irving I. Upper Wind Representation and Flight Planning, report, March 1957; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc958090/: accessed December 10, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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