Your vessel is on course 270°T, speed 10 knots. The apparent wind is from 10° off the port bow, speed 30 knots. From which direction is the true wind?

Question

Your vessel is on course 270&deg;T, speed 10 knots. The apparent wind is from 10&deg; off the port bow, speed 30 knots. From which direction is the true wind?

Accepted Answer

Option B: 255&deg;T. True wind derivation requires vector resolution combining ship's course/speed with apparent wind vector. Solving the relative wind triangle with own ship at 270°T/10kt and apparent wind from 260°T/30kt produces a true wind direction from 255°T.

Your vessel is on course 270&deg;T, speed 10 knots. The apparent wind is from 10&deg; off the port bow, speed 30 knots. From which direction is the true wind?

Your vessel is on course 270°T, speed 10 knots. The apparent wind is from 10° off the port bow, speed 30 knots. From which direction is the true wind?