Nav

Despejo bajo quilla

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

Despejo bajo quilla 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

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Questions and answers

Questions and answers

What is Despejo bajo quilla?

In this glossary, Despejo bajo quilla 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 Despejo bajo quilla used in maritime?

In maritime communication, this term appears in contexts such as: "Control de Puerto a MV Aurora, su despejo bajo quilla es ahora de uno coma dos metros sobre el plano de referencia; reduzca velocidad para minimizar squat y confirme intenciones."

Why does Despejo bajo quilla matter in maritime?

Despejo bajo quilla 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 Despejo bajo quilla?

Despejo bajo quilla is mainly used by Deck Officers, Engine Officers, and Masters.

What category does Despejo bajo quilla belong to?

In this glossary, Despejo bajo quilla 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

Despejo bajo quilla

Localized example

Control de Puerto a MV Aurora, su despejo bajo quilla es ahora de uno coma dos metros sobre el plano de referencia; reduzca velocidad para minimizar squat y confirme intenciones.

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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