27
A. Navigation Calculator
1. Calculation of time required
Problem:
How long does it take an airplane flying 180 knots to fly a distance of
450 nautical miles?
Solution:
Set the 18 mark on the outside scale to the SPEED INDEX ( ). At this
time, the point on the inside scale that is aligned with 45 on the outside scale
indicates (2:30), the answer is 2 hours and 30 minutes.
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