10 Questions
What should be done with corrections to Admiralty List of Lights & Fog signals and Admiralty List of Radio Signals?
They should be pasted on top of the existing entry in the publication
What is an acceptable method for making smaller corrections in a publication?
Writing the correction with a pen
What is the purpose of corrections to Admiralty List of Lights & Fog signals and Admiralty List of Radio Signals?
To update the publication with new information
What should be updated when corrections are made to a publication?
The correction index at the front of the publication
Why is it important to keep publications up to date?
To ensure compliance with regulations
What is the purpose of the correction index at the front of the publication?
To list all the corrections made to the publication
What should be done with superseded entries in a publication?
They should be pasted over with the correction
Why is it important to have a systematic approach to updating publications?
To ensure that all corrections are made
What is the benefit of using a pen to make corrections in a publication?
It is more permanent than other methods
What is the purpose of referencing external sources such as websites and videos?
To provide additional information on a topic
Study Notes
Weekly Notices to Mariners
- Issued weekly by the Admiralty, containing corrections to charts and other publications
- Include corrections to Admiralty sailing directions, Admiralty list of lights and radio signals, and temporary and preliminary notices to correct charts
- Numbering increases chronologically throughout the year, starting with notice no.1 in the first week of January
- Notify about new charts or new editions being published and their previous editions being cancelled
- Corrections are mentioned in the form of coordinates with instructions or overlay chart tracings and blocks to be cut and pasted
Cumulative List of Notices to Mariners
- Published twice a year in January and July
- Provide a list of current editions of all Admiralty Charts and the serial numbers of notices affecting them issued in the previous two years
- Used to verify charts onboard for any missing corrections
Annual Summary of Notices to Mariners
- Publishes all temporary and preliminary notices for a previous year
- Used to verify chart availability and update charts if necessary
Updating Charts
- Update charts by writing the latest notices to mariners number after the text "ADMIRALTY notices to mariners updated to"
- Verify that the date is not older than the one on the chart availability list
Tracing Paper
- Top section of a tracing paper includes:
- Chart reference (or number)
- Edition date of the chart
- Position of the correction on the chart
- Current notices to mariners number
- Previous notices to mariners number
- Use S type arrows to indicate corrections on ADMIRALTY charts
ADMIRALTY Charts
- Grouped in Folios, which represent an area on the map
- Example: Folio 25 is part of the Mediterranean buoys
Corrections to Publications
- For corrections to Admiralty List of Lights & Fog signals and Admiralty List of Radio Signals, paste corrections on top of the existing entry and update the correction index
- Smaller corrections can be done by pen in the publication
Test your knowledge about the Weekly Notices to Mariners, which provide corrections to charts and other publications, including temporary and preliminary notices, as well as notifications about new charts and editions. Learn about the issuance and structure of these notices, and how they are used in navigation. Improve your understanding of maritime navigation and chart correction.
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