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A sailing vessel heels when the boat leans over to the side in reaction to wind forces on the sails. A sailing vessel's form stability (derived from the shape of the hull and the position of the center of gravity) is the starting point for resisting heeling. Catamarans and iceboats have a wide stance that makes them resistant to heeling.
Before steam tugs became common, sailing vessels would back and fill their sails to maintain a good position in a tidal stream while drifting with the tide in or out of a river. In a modern yacht, motor-sailing – travelling under the power of both sails and engine – is a common method of making progress, if only in and out of harbour.
An ocean liner is a passenger ship designed to transport people from one seaport to another along regular long-distance maritime routes according to a schedule. Ocean liners may also carry cargo or mail, and may sometimes be used for other purposes.
Some examples of marine structures include ships, offshore platforms, moorings, pipelines, cables, wharves, bridges, tunnels, breakwaters and docks. Marine construction may require diving work, but professional diving is expensive and dangerous, and may involve relatively high risk, and the types of tools and equipment that can both function ...
2. Admiral ' s barge: A boat (or aircraft) at the disposal of an admiral (or other high ranking flag officer) for his or her use as transportation between a larger vessel and the shore, or within a harbor. In Royal Navy service, the colour of the hull (or aircraft cheat-line) denotes the rank - green for Commanders-in-Chief and dark blue for ...
The Sea-class workboat has been procured for Britain's Royal Navy to undertake a number of roles, including: logistics and transport tasks, inshore and harbour survey work, diver training and support, officer training and providing passenger transfer modules for the aircraft carrier HMS Prince of Wales. An autonomous minehunting variant of the ...
Justine McAllister, a tug boat in New York Harbor, January 2008 The tugboats Reid McAllister and McAllister Responder push the LPG tanker BW Volans into port at Marcus Hook on the Delaware River. A tugboat or tug is a marine vessel that manoeuvres other vessels by
Seamanship on some vessel types may involves being able to maintain and use marine cranes and lifting equipment if fitted on a ship. Larger ship types usually have a crane for cargo operations and for bringing on stores, provisions and supplies for the crew. [20] Seamanship knowledge and experience is an integral part of Dry-docking. This ...