Question 46Navigation Problems

70% to pass

On 8 April your 0830 zone time DR position is LAT 22°49.0'N, LONG 84°37.0'W. Your vessel is on course 228° T at a speed of 19.0 knots. What is the zone time of local apparent noon (LAN)?

A 1147
B 1154
C 1144
D 1150
AI Explanation

The correct answer is C) 1144. To calculate the zone time of local apparent noon (LAN), we need to use the given information about the vessel's position and course. The vessel's position at 0830 zone time is LAT 22°49.0'N, LONG 84°37.0'W, and it is traveling on a course of 228° T at a speed of 19.0 knots. Using this information, we can calculate the time of LAN, which is the time when the sun is at its highest point in the sky for the vessel's location. The formula to calculate the zone time of LAN is: Zone Time of LAN = 12:00 + (Longitude in degrees / 15) - Time Zone Correction. In this case, the longitude is 84°37.0'W, which is approximately 84.62° W. Plugging this into the formula, we get: Zone Time of LAN = 12:00 + (84.62 / 15) - 4 = 11:44, which is the correct answer, C) 1144. The other options are incorrect because they do not accurately calculate the zone time of LAN based on the given information.

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