What does Rule 13 specify for vessels involved in overtaking situations?

Answer: B — The overtaking vessel must keep out of the way of the vessel being overtaken

Rule 13 of the COLREGs specifically addresses vessels involved in overtaking situations by stating that the overtaking vessel must keep out of the way of the vessel being overtaken. This is a crucial safety guideline aimed at preventing collisions. The rationale behind this rule is to ensure that the vessel being overtaken maintains its course and speed without any alterations that could lead to misunderstanding or conflicts with the overtaking vessel. The overtaking vessel, having an obligation to give way, allows for a smoother passage and helps in maintaining safe navigation. By not interfering with the course or speed of the vessel being overtaken, the overtaking vessel reduces the chances of a close-quarters situation, which could lead to accidents. This rule is part of a broader framework that promotes safe maritime navigation and establishes clear responsibilities for vessels in various situations. While reducing speed could be a prudent maneuver in certain circumstances, it is not a mandatory requirement as per Rule 13; rather, the emphasis is placed on the obligation to keep clear. Sounding a horn is a different protocol entirely that relates to signaling, but it is not specifically outlined as a requirement in overtaking situations under this rule.