USCG Exam Practice · Visual piloting — three-bearing fixes, danger bearings
A navigator in confined waters is concerned that electronic positioning may be unreliable due to terrain obstruction. According to Bowditch, which navigation method is specifically identified as the primary method for these conditions?
- ADead reckoning, because it requires no external signals
- BCelestial navigation, because it is independent of terrain
- CPiloting, by reference to landmarks, aids to navigation, and soundings✓ correct
- DRadar navigation using the 6-nautical-mile range scale for maximum coverage
Why C is correct
Bowditch Ch. 1 §103 explicitly states that piloting is the primary method in confined waters where dead reckoning alone is insufficient and electronic positioning may be obstructed by terrain or interference.
Cited:Bowditch Ch. 1 §103
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