The stand-on vessel in a crossing situation observes that the give-way vessel is not taking appropriate action. Under Rule 17, when may the stand-on vessel take independent action to avoid collision?

Question

Accepted Answer

C. As soon as it becomes apparent that the give-way vessel is not taking appropriate action. — 33 CFR §83.17(a)(ii) permits the stand-on vessel to take action by her maneuver alone as soon as it becomes apparent that the give-way vessel is not taking appropriate action. The higher threshold — action that will best aid to avoid collision — applies under §83.17(b) when collision cannot be avoided by the give-way vessel alone, which is a separate and later obligation.

Answer

A. Only after sounding five or more short blasts.

Answer

B. Only when collision is so imminent that the give-way vessel's action alone cannot prevent it.

Answer

D. Only after the give-way vessel has acknowledged the danger signal.

The stand-on vessel in a crossing situation observes that the give-way vessel is not taking appropriate action. Under Rule 17, when may the stand-on vessel take independent action to avoid collision?

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