Chart Navigation & Plotting · Piloting — Danger Bearing
A danger bearing drawn from a charted hazard is used so that, to stay in safe water, the vessel must keep the actual bearing of the reference object:
- AExactly equal to the danger bearing at all times
- BOn the safe side of the drawn danger bearing (e.g., 'do not let the bearing draw past NMT 035°T')✓ Correct
- CAlways astern
- DChanging as rapidly as possible
Explanation
A danger bearing is a single LOP drawn tangent to a hazard from a prominent charted object. It is labeled NMT (not more than) or NLT (not less than) a value; keeping the object's actual bearing on the safe side of that line guarantees the vessel passes clear of the danger.
Authority: Bowditch (Pub. No. 9), Danger Bearings
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