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TermDefinition
- Displacement VesselA displacement hull moves (pushes apart) the water it passes through. Hence displacing the water. Read more
- Distance Distance refers to the measurement of how far a vessel has travelled from one point to another. Measured in nautical miles, it is an important(...) Read more
- Distance to Waypoint Distance to Waypoint indicates the distance between the vessel and a specific point or location known as a waypoint. The distance is given as(...) Read more
- 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(...) Read more
- Dividers Instrument with two points used to measure distances and assist chart work. Read more
- DodgerScreen fitted to give the crew protection from wind and spray Read more
- DolphinA mooring post or group of piles Read more
- Double UpTo put out extra mooring lines when a storm is expected Read more
- DouseTo lower a sail; To extinguish a light quickly Read more
- DownhaulA rope or line with which an object such as a spar or sail is pulled down Read more
- DownstreamThe direction towards which the stream flows Read more
- Downwind Downwind refers to the direction in which the wind is blowing relative to a specific point of reference. When sailing or navigating on the(...) Read more
- DragThe anchor drags when it fails to hold and slides over the seabed Read more
- DraftThe vertical distance from the lowest part of the keel to the waterline Read more
- DraughtThe vertical distance from the lowest part of the keel to the waterline Read more
- DredgerA vessel for dredging a channel Read more
- DriftTo be carried by the tidal stream; The distance that a boat is carried by the tidal stream in a given time Read more
- 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(...) Read more
- Drying Height The height above Chart Datum an area on the chart would be at Lowest Astronomical Tide. Read more