Question 1613Navigation General

The correct answer is A) C 192°T, Sp 23 knots. The navigator of the vessel traveling at the highest speed (23 knots) would be required to know the actual time of meridian transit in order to take an accurate observation at Local Apparent Noon (LAN). This is because at higher speeds, the vessel's position changes more rapidly, and an accurate meridian transit time is crucial for determining the vessel's position and latitude at LAN. The other vessels traveling at lower speeds (17 knots, 5 knots, and 6 knots) would not require as precise knowledge of the meridian transit time, as their positions would not change as rapidly, making it easier to determine their latitude at LAN without needing the exact meridian transit time.