Radar Observer · Collision Avoidance — Assumptions
When determining if risk of collision exists, Rule 7 warns that such risk may sometimes exist even with an appreciable bearing change, particularly when:
- AApproaching a very large vessel or a tow at close range✓ Correct
- BThe other vessel is stopped
- CVisibility is good
- DBoth vessels are at anchor
Explanation
Rule 7(d)(ii) notes risk may exist even with a noticeable bearing change when approaching a very large vessel, a tow, or any vessel at close range — because the bearing of one end may change while collision is still possible.
Authority: 72 COLREGS Rule 7(d)(ii)
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