Citizen ad2992-59p Reference Guide

English

How to use the aviation function

4-3.

[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.

[Calculation of flight distance]
Q :

If the speed is 210 knots and the flight time is 40 minutes, how many nautical　

miles will an aircraft travel?

A :

Align 21 of the outer scale with the SPEED INDEX “” of the inner scale.

Result: 140 Nautical Miles – 14 on the outer scale corresponds to 40 of the inner

scale.