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2. Freeboard (nautical) - Wikipedia

   en.wikipedia.org/wiki/Freeboard_(nautical)

   In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. [1] In commercial vessels, the latter criterion measured relative to the ship's load line , regardless of deck arrangements, is the mandated and regulated meaning.

3. Length between perpendiculars - Wikipedia

   en.wikipedia.org/wiki/Length_between_perpendiculars

   Graphical representation of the dimensions used to describe a ship. Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member.

4. Displacement (ship) - Wikipedia

   en.wikipedia.org/wiki/Displacement_(ship)

   Shipboard stability computer programs can be used to calculate a vessel's displacement. The process of determining a vessel's displacement begins with measuring its draft. [3] This is accomplished by means of its "draft marks". A merchant vessel has three matching sets: one mark each on the port and starboard sides forward, midships, and astern ...

5. Beam (nautical) - Wikipedia

   en.wikipedia.org/wiki/Beam_(nautical)

   Graphical representation of the dimensions used to describe a ship. Dimension "b" is the beam at waterline.. The beam of a ship is its width at its widest point. The maximum beam (B MAX) is the distance between planes passing through the outer sides of the ship, beam of the hull (B H) only includes permanently fixed parts of the hull, and beam at waterline (B WL) is the maximum width where the ...

6. Ship measurements - Wikipedia

   en.wikipedia.org/wiki/Ship_measurements

   Used mainly to determine the minimum water depth for safe passage of a vessel and to calculate the vessel's displacement (obtained from ship's stability tables) so as to determine the mass of cargo on board. Draft, Air – Air Draft/Draught is the distance from the water line to the highest point on a ship (including antennas) while it is ...

7. Length overall - Wikipedia

   en.wikipedia.org/wiki/Length_overall

   This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth [1] (for example, £2.50 per metre LOA). LOA is usually measured on the hull alone. [2] For sailing ships, this may exclude the bowsprit and other fittings added to the hull.

8. Metacentric height - Wikipedia

   en.wikipedia.org/wiki/Metacentric_height

   An ideal boat strikes a balance. Very tender boats with very slow roll periods are at risk of overturning, but are comfortable for passengers. However, vessels with a higher metacentric height are "excessively stable" with a short roll period resulting in high accelerations at the deck level.

9. Glossary of nautical terms (M–Z) - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_nautical_terms...

   [16] [36] 2. The difference between the heights of the high and low tides – a figure that will vary from place to place and day to day. [36] 3. The distance from an observer to a target, such as in gunnery. [36] range clock A clockwork device used aboard a warship to continuously calculate the distance or range to an enemy ship. range lights