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龙骨下余隙 是什么?

龙骨下余隙 Vertical distance between the lowest point of a vessel’s keel and the seabed referenced to chart datum; the key safety margin preventing grounding.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “龙骨下余隙” Used in Practice?

港口控制呼叫 MV Aurora:您目前的龙骨下余隙为一點二米(以海图基准计);请减速以减少掠沉并报告意图。

Certification Exam Relevance

STCWMarlins TestISF WatchkeeperGMDSS

Who Needs to Know This Term?

  • Deck Officers
  • Engine Officers
  • Masters

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Frequently Asked Questions

龙骨下余隙 是什么?

Vertical distance between the lowest point of a vessel’s keel and the seabed referenced to chart datum; the key safety margin preventing grounding.

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