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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.
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 ...
Ships are typically larger than boats, but there is no universally accepted distinction between the two. Ships generally can remain at sea for longer periods of time than boats. [3] A legal definition of ship from Indian case law is a vessel that carries goods by sea. [4] A common notion is that a ship can carry a boat, but not vice versa. [5]
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 ...
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.
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 ...
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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.