Nav

Khoảng trống dưới sống

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

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

This term page is part of the Protermify Maritime glossary and is published as static HTML for fast indexing and clear language coverage.

Languages

Quick answer

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

Why it matters

Khoảng trống dưới sống matters because it supports clear communication in Nav contexts for Deck Officers, Engine Officers, and Masters. It also connects to aviation training and exam language such as STCW, Marlins Test, ISF Watchkeeper, and GMDSS.

Editorial context

This page is rendered as static HTML from source-backed terminology data so search engines and AI systems can parse the content without client-side code.

Questions and answers

Questions and answers

What is Khoảng trống dưới sống?

In this glossary, Khoảng trống dưới sống refers to: Vertical distance between the lowest point of a vessel’s keel and the seabed referenced to chart datum; the key safety margin preventing grounding.

How is Khoảng trống dưới sống used in maritime?

In maritime communication, this term appears in contexts such as: "Cảng vụ gọi MV Aurora, khoảng trống dưới sống của bạn hiện là một phẩy hai mét tại mốc hải đồ; giảm tốc để giảm hiệu ứng squat và thông báo ý định."

Why does Khoảng trống dưới sống matter in maritime?

Khoảng trống dưới sống matters because it supports clear communication in Nav contexts for Deck Officers, Engine Officers, and Masters. It also connects to aviation training and exam language such as STCW, Marlins Test, ISF Watchkeeper, and GMDSS.

Who uses Khoảng trống dưới sống?

Khoảng trống dưới sống is mainly used by Deck Officers, Engine Officers, and Masters.

What category does Khoảng trống dưới sống belong to?

In this glossary, Khoảng trống dưới sống is grouped under Nav. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from IMO SMCP, STCW Convention, SOLAS, COLREG and published by Protermify Maritime as a static maritime reference page.

Definition

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

Operational example

Harbour Control to MV Aurora, your underkeel clearance is now one decimal two metres at chart datum; adjust speed to minimise squat and confirm intentions.

Localized term

Khoảng trống dưới sống

Localized example

Cảng vụ gọi MV Aurora, khoảng trống dưới sống của bạn hiện là một phẩy hai mét tại mốc hải đồ; giảm tốc để giảm hiệu ứng squat và thông báo ý định.

Definition language

English reference definition

Source

IMO SMCP, STCW Convention, SOLAS, COLREG

Category

Nav

Exam relevance

  • STCW
  • Marlins Test
  • ISF Watchkeeper
  • GMDSS

Target audience

  • Deck Officers
  • Engine Officers
  • Masters

Related terms

Use the related links below to continue through connected maritime terminology.

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