Glossary Archive

A Notice to Mariners is an official publication issued by maritime authorities to provide important information and updates regarding navigational hazards, changes to navigational aids, and other relevant information that may affect the safety of navigation in a specific area. This information is crucial for mariners to stay informed and make necessary adjustments to their...

The National Oceanic and Atmospheric Administration is an American scientific agency within the United States Department of Commerce that focuses on the conditions of the oceans, major waterways, and the atmosphere.

A radio transmitter at a fixed location that emits signals in all directions, used in marine navigation to help vessels determine their position relative to the beacon. A Non-Directional Beacon (NDB) is a fundamental navigational aid in the maritime world, providing mariners with a reliable method to ascertain their position and course. Unlike directional or...

An intergovernmental military alliance established in 1949 aimed to ensure the collective defence of its member state through political and military means. NATO was founded in the aftermath of World War II, with the North Atlantic Treaty (also known as the Washington Treaty) signed on April 4, 1949. Its primary purpose was to create a...

The Northern Lighthouse Board is a maritime organisation responsible for maintaining lighthouses and navigation aids in Scotland and the Isle of Man. Established: The Northern Lighthouse Board was established in 1786 and serves a similar purpose to Trinity House but specifically covers Scotland and the Isle of Man. Responsibilities: NLB is responsible for the operation...

A Notice to Mariners is an official publication issued by maritime authorities to provide important information and updates regarding navigational hazards, changes to navigational aids, and other relevant information that may affect the safety of navigation in a specific area. This information is crucial for mariners to stay informed and make necessary adjustments to their...

Vessel broken down. No steerage, engines defunct etc.

Pronounced: no-VEM-ber The term for the letter N in the NATO Phonetic Alphabet.

The flag represents the numerical value of four.

The flag represents the numerical value of five.