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How to use the aviation function
[Calculation of time needed to travel a set distance]
Q : If the speed of an aircraft is 180 knots, how much time does it take the aircraft
to fly 450 nautical miles ?
A : Align 18 of the outer scale with the SPEED INDEX " " of the inner scale.
Result: 2 hours and 30 minutes - 2:30 of the inner scale corresponds to 45 of the
outer scale.
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