Glossary
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TermDefinition
- General Nautical Terminology Downwind
Refers to the direction in which the wind is blowing relative to a specific point of reference.
When sailing or navigating on the water,...
More Details - General Nautical Terminology, Navigation DR
A navigational method used to estimate a vessel's current position based on a previously known position, factoring in speed, time, and course...
More Details - General Nautical Terminology DragThe anchor drags when it fails to hold and slides over the seabed
- General Nautical Terminology DraughtThe vertical distance from the lowest part of the keel to the waterline
- General Nautical Terminology DredgerA vessel for dredging a channel
- General Nautical Terminology DriftTo be carried by the tidal stream; The distance that a boat is carried by the tidal stream in a given time
- General Nautical Terminology DrogueA device to slow a boat down in a storm so that it does not speed excessively down the slope of a wave and crash into the next one. It is... More Details
- General Nautical Terminology Drying Height
The vertical distance between the seabed or a drying feature, such as a rock or sandbank, and chart datum, which is usually lowest astronomical...
More Details - General Nautical Terminology DTW
Distance to Waypoint indicates the distance between the vessel and a specific point or location known as a waypoint. The distance is given as the...
More Details - General Nautical Terminology Dyneema
A high-performance synthetic fibre known for its exceptional strength-to-weight ratio.
It is often used in marine applications for rigging,...
More Details - General Nautical Terminology Ease OutTo let a rope out gradually
- General Nautical Terminology, Navigation Ebb Tide
The period during which the tide is receding, causing water levels to fall as it flows away from the shore towards the sea.
Ebb tide is a...
More Details - General Nautical Terminology, Navigation ECDIS
An Electronic Chart Display and Information System (ECDIS) is a geographic information system used for nautical navigation that complies with IMO...
More Details - Phonetic Alphabet, Signals & Communication Echo
Pronounced: ECK-oh
The term for the letter E in the NATO Phonetic Alphabet.
- General Nautical Terminology Echo SounderAn electronic depth-finding instrument
- General Nautical Terminology Echo SoundingThe result of measuring the depth of the water using a sonar device or Echo Sounder
- Flag / Pennant, Signals & Communication Code Flag Echo (E)
The International Maritime Signal Flag Echo.
Meaning
I am altering course to starboard.
- General Nautical Terminology, Navigation Electronic Chart Display and Information System (ECDIS)
An Electronic Chart Display and Information System (ECDIS) is a geographic information system used for nautical navigation that complies with IMO...
More Details - General Nautical Terminology, Navigation Electronic Navigation Chart (ENC)
A digital database of maritime chart information designed for use with Electronic Chart Display and Information Systems (ECDIS) to support safe...
More Details - General Nautical Terminology Electronic Position Indicating Radio BeaconElectronic Position Indicating Radio Beacon that transmits a distinctive signal on a distress frequency