Question 1763Navigation General

The correct answer is A) C 162°T, Sp 27 knots. For a vessel traveling at a course of 162°T and a speed of 27 knots, the navigator would need to know the actual time of meridian transit in order to take an accurate observation at LAN (Local Apparent Noon). This is because at high speeds, the vessel will have traveled a significant distance by the time it reaches the meridian, and the navigator needs to account for this change in position to accurately determine the vessel's latitude. The other answer choices represent vessels traveling at lower speeds, where the change in position during meridian transit is less significant, and the actual time of meridian transit is not as critical for an accurate LAN observation.