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TermDefinition
- Hand Bearing Compass A hand-bearing compass is a portable compass held in the hand that is used to take bearings of objects or landmarks to determine their location(...) Read more
- Handy BillyA loose block and tackle with a hook or tail on each end, which can be used wherever it is needed. Usually made up of one single and one double block. Read more
- HankA fastener attached to the luff of the headsail that attaches the headsail to the forestay. Typical designs include a bronze or plastic hook(...) Read more
- Harden InTo haul in the sheets to bring the sail closer to the centreline; the opposite of ease out Read more
- Harden UpTurn towards the wind; sail closer to the wind. Read more
- HatchA covered opening in a ship's deck through which cargo can be loaded or access made to a lower deck; the cover to the opening is called a hatch cover Read more
- Haul InTo pull in, usually a sheet, halyard or anchor line Read more
- Head to WindTo point the stem of the vessel into the wind Read more
- HeadlandA fairly high and steep part of the land that projects into the sea Read more
- HeadwayMovement through the water stem first Read more
- Heave To “Heaving To” is a manoeuvre in which a vessel stops forward motion and maintains a stable position relative to the wind and waves. To “heave(...) Read more
- HeelThe angle a vessel leans over in the wind. Read more
- Height of LightThe height of a charted object such as a lighthouse or other feature measured from MHWS. Read more
- Height of TideThe vertical distance at any instant between sea level and chart datum Read more
- HelmA ship's steering mechanism. A person who steers a ship. Read more
- HelmsmanThe member of the crew who steers the vessel Read more
- HATThe highest level the tide will reach based on the luna cycle Read more
- Highest Astronomical TideThe highest level the tide will reach based on the luna cycle Read more
- HitchA knot used to tie a rope or line to a fixed object. Also see bend Read more
- Holding TankStorage tank for human waste to avoid fouling inshore waters. Required in most European countries, but not currently UK. Read more