Nav

Range Light Alignment

The navigation technique of steering a vessel so that two range lights, one behind the other, appear vertically aligned, indicating the vessel is on the safe channel axis.

Quick answer: The navigation technique of steering a vessel so that two range lights, one behind the other, appear vertically aligned, indicating the vessel is on the safe channel axis.

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

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Quick answer

The navigation technique of steering a vessel so that two range lights, one behind the other, appear vertically aligned, indicating the vessel is on the safe channel axis.

Why it matters

Range Light Alignment 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 Range Light Alignment?

In this glossary, Range Light Alignment refers to: The navigation technique of steering a vessel so that two range lights, one behind the other, appear vertically aligned, indicating the vessel is on the safe channel axis.

How is Range Light Alignment used in maritime?

In maritime communication, this term appears in contexts such as: "Keep the vessel’s heading so that both range lights appear in line. If lights separate, correct course to regain range light alignment and notify VTS if necessary."

Why does Range Light Alignment matter in maritime?

Range Light Alignment 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 Range Light Alignment?

Range Light Alignment is mainly used by Deck Officers, Engine Officers, and Masters.

What category does Range Light Alignment belong to?

In this glossary, Range Light Alignment 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

The navigation technique of steering a vessel so that two range lights, one behind the other, appear vertically aligned, indicating the vessel is on the safe channel axis.

Operational example

Keep the vessel’s heading so that both range lights appear in line. If lights separate, correct course to regain range light alignment and notify VTS if necessary.

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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