Nav

Vạch chỉ số song song

A radar-derived reference line drawn parallel to the vessel's intended track, used to monitor cross-track error by keeping a chosen land echo or seamark at a constant offset.

Quick answer: A radar-derived reference line drawn parallel to the vessel's intended track, used to monitor cross-track error by keeping a chosen land echo or seamark at a constant offset.

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

A radar-derived reference line drawn parallel to the vessel's intended track, used to monitor cross-track error by keeping a chosen land echo or seamark at a constant offset.

Why it matters

Vạch chỉ số song song 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 Vạch chỉ số song song?

In this glossary, Vạch chỉ số song song refers to: A radar-derived reference line drawn parallel to the vessel's intended track, used to monitor cross-track error by keeping a chosen land echo or seamark at a constant offset.

How is Vạch chỉ số song song used in maritime?

In maritime communication, this term appears in contexts such as: "Hoa tiêu: giữ vạch chỉ số song song mạn phải cách đường đồng mức 20 m một sợi cáp; chỉnh lái để giữ khoảng cách không đổi."

Why does Vạch chỉ số song song matter in maritime?

Vạch chỉ số song song 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 Vạch chỉ số song song?

Vạch chỉ số song song is mainly used by Deck Officers, Engine Officers, and Masters.

What category does Vạch chỉ số song song belong to?

In this glossary, Vạch chỉ số song song 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

A radar-derived reference line drawn parallel to the vessel's intended track, used to monitor cross-track error by keeping a chosen land echo or seamark at a constant offset.

Operational example

Pilot: Keep the starboard parallel index line one cable off the 20-metre contour; adjust rudder as necessary to maintain constant offset.

Localized term

Vạch chỉ số song song

Localized example

Hoa tiêu: giữ vạch chỉ số song song mạn phải cách đường đồng mức 20 m một sợi cáp; chỉnh lái để giữ khoảng cách không đổi.

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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