Search results
Results from the WOW.Com Content Network
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.
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 ...
In the diagram above, the two Bs show the centres of buoyancy of a ship in the upright and heeled conditions. The metacentre, M, is considered to be fixed relative to the ship for small angles of heel; however, at larger angles the metacentre can no longer be considered fixed, and its actual location must be found to calculate the ship's stability.
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 ...
Either of the braces attached to the yard of the mainsail (the largest and lowest sail on the mainmast) on a square-rigged vessel. mainmast. Also simply main. 1. The tallest mast on a ship [1] with more than one mast, especially the tallest mast on a full-rigged ship. 2. On a ship with more than one mast, the second mast from the bow. mainmast head
The marla is a traditional unit of area that is used in India, Pakistan and Bangladesh. The marla was standardized under British raj to be equal to the square rod, or 272.25 square feet, 30.25 square yards, or 25.2929 square metres.
Play free online Board games and chat with others in real-time and with NO downloads and NOTHING to install.
Thus, when the yards hang at right angles with the mast they are said to be 'square by the lifts;' when perpendicular to the ship's length, they are 'square by the braces;' but when they lie in a direction perpendicular to the plane of the keel, they are 'square by the lifts and braces.' The yards are said to be very square when they are of ...