Question 1

Under Rule 13, a vessel is considered to be overtaking another. What is the overtaking vessel's obligation, and when does it cease to apply?

Accepted Answer

The overtaking vessel must keep out of the way of the vessel being overtaken until it is finally past and clear — this obligation does not change even if the vessels later end up in a crossing situation Rule 13 makes the overtaking vessel keep out of the way until finally past and clear — and Rule 13(d) specifically states this duty continues even if the geometry later resembles a crossing situation, to avoid the overtaking vessel claiming stand-on rights under Rule 15.

Question 2

Rule 5 (Look-out) requires every vessel at all times to maintain a proper look-out by sight and hearing, as well as by all available means appropriate in the prevailing circumstances and conditions — and this duty applies even when the vessel is at anchor in a busy anchorage.

Accepted Answer

True True. Rule 5 applies 'at all times' and to 'every vessel'. A vessel at anchor in a busy anchorage still needs an effective look-out to detect drifting vessels, dragging anchors, or approaching traffic that may pose a risk of collision or contact.

Question 3

Under Rule 6 (Safe Speed), a vessel fitted with a fully operational radar and ARPA never needs to reduce speed in restricted visibility, because the equipment guarantees early detection of other vessels.

Accepted Answer

False False. Rule 6 explicitly lists radar capability as one factor to consider, but also requires accounting for the state of visibility, traffic density, manoeuvrability, and the limitations of radar (range scale, sea/rain clutter, blind sectors). Even a vessel with excellent radar must proceed at a speed that allows proper and effective action to avoid collision and to be stopped within a distance appropriate to the prevailing circumstances.