What is Half Ahead Bell?
Half Ahead Bell Engine telegraph order instructing propulsion at half engine speed ahead, used for moderate manoeuvring or departure from berth.
Source: IMO SMCP, STCW Convention, SOLAS, COLREG
How is “Half Ahead Bell” Used in Practice?
Bridge to engine room: 'Half ahead bell.' Use half ahead until clear of harbour limits and then adjust as required.
Certification Exam Relevance
Who Needs to Know This Term?
- Deck Officers
- Engine Officers
- Masters
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What is Half Ahead Bell?
Engine telegraph order instructing propulsion at half engine speed ahead, used for moderate manoeuvring or departure from berth.
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