What is Position Doubtful?
Position Doubtful Phrase used to indicate that the vessel's current navigational position cannot be reliably confirmed and may be inaccurate, requiring urgent verification.
Source: IMO SMCP, STCW Convention, SOLAS, COLREG
How is “Position Doubtful” Used in Practice?
Bridge to VTS, position doubtful, GPS unreliable. Request assistance for position fixing and safe navigation.
Certification Exam Relevance
Who Needs to Know This Term?
- Deck Officers
- Engine Officers
- Masters
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What is Position Doubtful?
Phrase used to indicate that the vessel's current navigational position cannot be reliably confirmed and may be inaccurate, requiring urgent verification.
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