Brian Dunning's FileMaker Custom Functions

Wind ( GS ; TT ; TAS ; TH )

Wind calculation

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Christoph Ivo Mattle   Christoph Ivo Mattle

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  Sample input:
Wind ( 50 ; 300 ; 180 ; 125 )
  Sample output:

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Wind ( GS ; TT ; TAS ; TH ) ;
GS : Ground Speed
TT : True Track
TAS : True Air Speed
TH : True Heading.
The aircraft flies with heading TH and airspeed TAS.
It moves on the track TT with the groundspeed GS.
The resulting wind is "strength|direction".



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Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

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