Ships and marine technology - Terms, abbreviations, graphical symbols and concepts on navigation
1 Scope
This document provides terms, abbreviations and graphical symbols for use in maritime navigation on board ships. Symbols for use in mathematical formulae are also given.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Terms, abbreviation and symbols used in navigation are given in Clauses 4 to 16. Abbreviations should not be used in mathematical formulae.
3.1
navigation
process of finding the position of a craft or vehicle, and of planning, recording and controlling its movement from one place to another
4 Special units in maritime navigation
See Table 1 for special units in maritime navigation.
5 Reference directions
5.1 North directions
North directions are horizontal reference directions, see Table 2 for the terms and abbreviations of north directions.
5.2 Dead ahead direction
Dead ahead direction is the direction ahead of the ship's fore-and-aft line.
6 Course, heading, track, speed
6.1 Course, heading
Course (CRS) and heading (HDG) are angles, measured in the horizontal plane from one of the reference directions specified in Clause 5, counted clockwise from 000° through 360°, written as three-digit numbers. See Table 3 for the terms and abbreviations of course and heading.
6.2 Track
The term "track" is used
a) as the path of voyage over the ground (ground track)or through the water (water track), as plotted in the chart, expressed in angular units from true north (000°) clockwise through <360°; one must distinguish rhumb-line track (see 10.2.11) and great-circle track (see 10.2.9),
b) as the path of radar-targets on a plan position indicator.
Standard
GB/T 27889-2023 Ships and marine technology—Terms, abbreviations, graphical symbols and concepts on navigation (English Version)
Standard No.
GB/T 27889-2023
Status
valid
Language
English
File Format
PDF
Word Count
15500 words
Price(USD)
465.0
Implemented on
2023-12-1
Delivery
via email in 1~3 business day
Detail of GB/T 27889-2023
Standard No.
GB/T 27889-2023
English Name
Ships and marine technology—Terms, abbreviations, graphical symbols and concepts on navigation
Ships and marine technology - Terms, abbreviations, graphical symbols and concepts on navigation
1 Scope
This document provides terms, abbreviations and graphical symbols for use in maritime navigation on board ships. Symbols for use in mathematical formulae are also given.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Terms, abbreviation and symbols used in navigation are given in Clauses 4 to 16. Abbreviations should not be used in mathematical formulae.
3.1
navigation
process of finding the position of a craft or vehicle, and of planning, recording and controlling its movement from one place to another
4 Special units in maritime navigation
See Table 1 for special units in maritime navigation.
5 Reference directions
5.1 North directions
North directions are horizontal reference directions, see Table 2 for the terms and abbreviations of north directions.
5.2 Dead ahead direction
Dead ahead direction is the direction ahead of the ship's fore-and-aft line.
6 Course, heading, track, speed
6.1 Course, heading
Course (CRS) and heading (HDG) are angles, measured in the horizontal plane from one of the reference directions specified in Clause 5, counted clockwise from 000° through 360°, written as three-digit numbers. See Table 3 for the terms and abbreviations of course and heading.
6.2 Track
The term "track" is used
a) as the path of voyage over the ground (ground track)or through the water (water track), as plotted in the chart, expressed in angular units from true north (000°) clockwise through <360°; one must distinguish rhumb-line track (see 10.2.11) and great-circle track (see 10.2.9),
b) as the path of radar-targets on a plan position indicator.
