Question 1188Navigation General

The correct answer is B) Relative 80°, true 040°T, 16.2 knots. To determine the true wind direction and speed, we need to calculate the vector sum of the ship's course and speed, and the apparent wind direction and speed. The relative wind direction is 80° because the apparent wind is 30° off the starboard bow, which is 80° relative to the ship's heading. The true wind direction is 040°T because the ship is traveling on a course of 320°T, and the relative wind direction of 80° places the true wind 40° to the right of the ship's course. The true wind speed is 16.2 knots, calculated using the Pythagorean theorem based on the ship's speed of 25 knots and the apparent wind speed of 32 knots. The other options are incorrect because they do not accurately represent the true wind direction and speed based on the given information.