USCG Exam PracticePassing distance and CPA from chart plot
According to the Navigation Rules, what condition must exist for risk of collision to be present when observing an approaching vessel?
- A. The vessel's speed is greater than your own vessel's speed
- ✓ The compass bearing to the vessel remains constant and the range is decreasingCorrect
- C. The vessel is on a reciprocal course within 10 degrees of your heading
- D. The vessel is within the range of your vessel's radar
Why B is correct
Bowditch Ch. 7 §704 states that if the compass bearing to an approaching vessel remains constant and the range is decreasing (CBDR), risk of collision exists. A constant bearing alone is not sufficient; decreasing range must also be present.
Cited:Bowditch Ch. 7 §704