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A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". [1] That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed.
A sail plan is a drawing of a sailing craft, viewed from the side, depicting its sails, the spars that carry them and some of the rigging that supports the rig. [1] By extension, "sail plan" describes the arrangement of sails on a craft. [2] [3] A sailing craft may be waterborne (a ship or boat), an iceboat, or a sail-powered land vehicle.
Seamanship on a commercial level involves a knowledge of all the different ship types (such as bulk carriers, container ships, oil tankers, cruise ships, platform supply vessels, and others), including a basic knowledge of ship recognition, a basic understanding of nautical terms, ship structure and naval architecture and cargo operations ...
If you draw a box around the submerged part of the ship, it is the ratio of the box volume occupied by the ship. It gives a sense of how much of the block defined by the L WL, beam (B) & draft (T) is filled by the hull. Full forms such as oil tankers will have a high C b where fine shapes such as sailboats will have a low C b.
As ship design evolved from craft to science, designers learned various ways to produce long curves on a flat surface. Generating and drawing such curves became a part of ship lofting; "lofting" means drawing full-sized patterns, so-called because it was often done in large, lightly constructed mezzanines or lofts above the factory floor.
All commercial ships, other than in exceptional circumstances, [3] have a load line symbol painted amidships on each side of the ship. This symbol is also permanently marked, so that if the paint wears off it remains visible. The load line makes it easy for anyone to determine if a ship has been overloaded.
Marine art or maritime art is a form of figurative art (that is, painting, drawing, printmaking and sculpture) that portrays or draws its main inspiration from the sea. Maritime painting is a genre that depicts ships and the sea—a genre particularly strong from the 17th to 19th centuries. [1]
From a water safety perspective the steersman should also be among the most experienced crew members, and be knowledgeable with the waterways and weather conditions, relevant maritime rules and other safety considerations such as the use of personal flotation devices, rigging of the canoe, placement of paddlers in the various seating positions ...