BOTH INTERNATIONAL & INLAND When must a sailing vessel keep her course and speed?

Correct Answer: Option B — when being overtaken

Rule 17(a)(i) mandates that a stand-on vessel must maintain her course and speed. When a sailing vessel is being overtaken by another vessel, the overtaken vessel is the stand-on vessel under Rule 13, regardless of the propulsion method, and must maintain her course and speed to allow the overtaking vessel to maneuver.