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- Mean Low Water Neaps Mean Low Water Neaps (MLWN) is a tidal datum representing the average lowest water level during neap tides. Neap tides occur when the(...) Read more
- MLWN Mean Low Water Neaps (MLWN) is a tidal datum representing the average lowest water level during neap tides. Neap tides occur when the(...) Read more
- MLWS Mean Low Water Springs (MLWS) refers to the average sea level during low tide under the gravitational influence of the combined forces of the(...) Read more
- Mean Low Water Springs Mean Low Water Springs (MLWS) refers to the average sea level during low tide under the gravitational influence of the combined forces of the(...) Read more
- Phonetic Alphabet Mike Phonetic alphabet letter M. Stationary Vessel: When a vessel displays the Mike flag, it indicates that it is not moving under its own(...) Read more
- MistVisibility reduced to between 0.5 and 2 nautical miles due to suspension of water particles in the air Read more
- Mast aft of the mainmast, on a ship. Read more
- MoleA breakwater made of stone or concrete Read more
- MonohullA vessel with a single hull Read more
- MooringThe ground tackle attached to a mooring buoy Read more
- Mooring BuoyA non-navigational buoy to which a vessel can moor Read more
- Mooring RingA ring on a mooring buoy Read more
- Motor cone A sailing vessel making way using sails and engine. A downward pointing cone should be displayed in the fore triangle in daylight and lights(...) Read more
- Motor sailing A sailing vessel making way using sails and engine. A downward pointing cone should be displayed in the fore triangle in daylight and lights(...) Read more
- NOAA The National Oceanic and Atmospheric Administration is an American scientific agency within the United States Department of Commerce that(...) Read more
- National Oceanic and Atmospheric Administration The National Oceanic and Atmospheric Administration is an American scientific agency within the United States Department of Commerce that(...) Read more
- Nautical Almanac An annual publication containing information on Ports, Tide tables and much, much more. Read more
- Nautical MileUnit of distance at sea based on the length of one minute of latitude. One nautical mile or approximately 6076 feet or 1852 metres. Read more
- Navigation Lights Lights exhibited by all vessels between sunset and sunrise, in restricted visibility and may be exhibited in any other circumstances if deemed(...) Read more
- NavtexA compact system which can be installed on your vessel to receive 518 kHz and 490 kHz broadcasts of weather information. Read more