61-01. BASICS OF NAVIGATION
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1. What is the change in longitude (in degrees and minutes) from A (45°N 165°30’E) to B (45°N 155°40’W)?
2. For 1s’ February the Air Almanac lists the following data:
Morning civil twilight: 07:56
Evening civil twilight: 16:32
The duration of morning twilight at 66″00’N is:
3. The following values are given:
Grid track: 192
Grid convergence: 48W
Find magnetic heading when WCA is 9L.
A: 55″N 000°
B: 54°N 010°E
The average true course of the great circle is 100°.
The true course of the rhumb line at point A is:
5. The prime meridian is: