Radar Observer · Collision Avoidance — Risk
Under the Rules of the Road, risk of collision shall be deemed to exist if the compass bearing of an approaching vessel:
- AChanges rapidly
- BDoes not appreciably change✓ Correct
- CIs dead astern
- DIs greater than the radar range
Explanation
Rule 7(d)(i) states risk of collision shall be deemed to exist if the compass bearing of an approaching vessel does not appreciably change. A steady bearing with decreasing range means you are on a collision course.
Authority: 72 COLREGS Rule 7(d)
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