DICTIONARY OF

Haar 161 Half Mast
H
Haar. Local name for a wet sea fog off E Coast of Scotland.
Hack Watch. Small timekeeper that is set to chronometer time and used on deck for timing
astronomical sights.
Hadar. Star Centauri. S.H.A. 150°; Dec. S60°; Mag. 0-9.
Hadley's Quadrant. First English quadrant devised for measuring altitudes. Invented by
John'Hadley, 1730.
Hague Convention, 1899. International convention that gave immunity to hospital ships in
time of war, and formulated rules for the settlement of international disputes.
Hague Rules, 1921. Enunciated certain rules and conditions regarding the carriage of goods
by sea; most of these rules being incorporated in the 'Carriage of Goods by Sea Act, 1924'.
Hail. Precipitation of small pieces of ice, or small balls of packed snow, from cumulonimbus
cloud. 2. To call to a distance by word of mouth. Hailstone. A single ball of hail.
Hair Bracket.* Moulding immediately abaft a figurehead.
Hale.* Old English form of 'Haul'.
Half Beam. Beam that is cut to form a hatchway, or to give clearance.
Half Breadth Plan. Plan of a ship from centre line to ship's side on one side. Shows buttock
lines, bow lines and water lines at different draughts.
Half Breadth Staff. Wooden rod marked to show half lengths of ship's beams. Used for
measuring the beams.
Half Cardinal. Name applied to a point of compass halfway between two cardinal points.
Half Crown. Small circular bight in a rope.
Half Deck. Non-continuous deck extending from right forward to about half length of a
boat. 2. Covered part of upper deck that is under a poop and contains accommodation for
officers, apprentices or crew. 3. In R.N. is that part of lower deck that is aft, and in which is
accommodation for officers. 4. Non-continuous deck extending from mainmast to right aft
above main deck. 5. Quarters of cadets or apprentices in a merchant ship.
Half Decked. Said of a vessel with an upper deck that is not continuous.
Half Ebb. Said of a tide when halfway from high water to low water.
Half Flood. Said of a tide that is halfway from low water to high water.
Half Floor. Frame timber going from keel to the heel of second futtock.
Half Hitch. Made by passing end of rope round its own part and through the bight formed.
Half Mast. Position of an ensign or flag when partially hauled down as sign of mourning.