Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. The sky is overcast, and the anemometer indicates that the apparent wind is from 144° relative at 8 knots. You are on course 162°T at 15 knots. How should you encode group Nddff?

Question

Accepted Answer

Option C: 83322. To encode Nddff, calculate the true wind vector. With a 162°T course at 15 knots and an apparent wind of 144° relative (306°T) at 8 knots, the resulting true wind is approximately 330° at 22 knots. This corresponds to code 8 for wind direction 330° and 22 knots speed.