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How to Calculate Air Speed and Ground Speed

Taking a 60 mile long road trip by car, the driver is fairly sure that if the average speed is 60 miles per hour (mph) for the trip, then it will probably take
approximately one hour for the trip (60/60 = 1). This would not be as certain with an airplane because of wind. An airplane's speed can be greatly enhanced or
diminished by the wind. This is the reason for the consideration of 2 speeds: ground speed and airspeed. Ground speed is the speed at which an airplane is moving
with respect to the ground. Airspeed is the speed of an airplane in relation to the air. (Think of airspeed as the speed at which its propulsion system is set to move it
along.) If an airplane is flying with the wind then its ground speed will be enhanced. That means its ground speed will be faster than its airspeed. If an airplane is flying
against the wind then its ground speed will be reduced. That means its ground speed will be slower than its airspeed. If an airplane is flying through still air (air with
no measurable wind), then its ground speed and airspeed will be the same.

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