You are underway and intend to make good a course of 170°T. You experience a current with a set and drift of 050°T at 2.8 knots, and a easterly wind produces a leeway of 3°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 18.5 knots. What will be your speed made good over your intended course of 170°T?

Question

Accepted Answer

Option D: 17.2 knots. Accounting for the 3° leeway and the 2.8-knot current set at 050°T, the vessel must steer to compensate. Calculating the resultant velocity vector along the 170°T track line, the Speed Made Good is reduced to 17.2 knots due to the opposing current component.