The Aircraft Ground Speed calculator computes the ground speed based on the wind speed (WS), wind direction (β), a Flight Heading (α) and an Air Speed (AS).
INSTRUCTIONS: Choose units and enter the following:
Ground Speed (GS): The calculator returns the ground speed in miles per hour. However, this can be automatically converted to other velocity units (e.g. kilometers per hour) via the pull-down menu.
The Aircraft Ground Speed is computed using.