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Date: 1991 


Question:
I wonder how does the airplane measure the distance while it is flying.



Replies:
But it does not. There is no odometer in an airplane. The pilot keeps track of position by calculating s=Vt, taking into account expected wind velocities. Also, electronic systems using satellites help to keep track of position. But it is very easy to get lost in the air.

Jack L. Uretsky



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