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舵切り開始線とは?

舵切り開始線 A track line shown on chart or radar which, when crossed, indicates the precise moment to start the wheel-over so that the intended new course is met accurately.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “舵切り開始線” Used in Practice?

シンガポールVTS:現在の針路を維持し、舵切り開始線を越えたことをコンニングが示してから転針を開始せよ。

Certification Exam Relevance

STCWMarlins TestISF WatchkeeperGMDSS

Who Needs to Know This Term?

  • Deck Officers
  • Engine Officers
  • Masters

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Frequently Asked Questions

舵切り開始線とは?

A track line shown on chart or radar which, when crossed, indicates the precise moment to start the wheel-over so that the intended new course is met accurately.

Where can I learn this term for free?

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