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A tugboat, or tug, is a boat used to maneuver large ships in harbours, over the open sea, or through rivers and canals. They also tow barges , disabled ships, and oil rigs . Equipped with powerful engines producing thousands of horsepower, extensive rigging equipment, and a fender of tires for protection, tugboats can push or tow large vessels ...
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Friendship Sloop in c. 1920 Fiberglass Friendship Sloop Bay Lady (launched in 1979) Diagram of a Friendship Sloop. The Friendship sloop, also known as a Muscongus Bay sloop or lobster sloop, is a gaff-rigged working boat design that originated in Friendship, Maine around 1880 and has survived as a traditional-style sailboat.
The bottom is flat in a river junk with no keel (similar to a sampan), so that the boat relies on a daggerboard, [16] leeboard or very large rudder to prevent the boat from slipping sideways in the water. [17] The internal bulkheads are characteristic of junks, providing interior compartments and strengthening the ship.
A small boat used to negotiate between enemies Catboat A sailing vessel characterized by a single mast carried well forward (i.e., near the bow of the boat) Clipper A fast multiple-masted sailing ship, generally used by merchants because of their speed capabilities Coastal defense ship A vessel built for coastal defense Cog
Fore or forward: at or toward the front of a ship or further ahead of a location (opposite of "aft") [1] Preposition form is "before", e.g. "the mainmast is before the mizzenmast". Inboard: attached inside the ship. [14] Keel: the bottom structure of a ship's hull. [15] Leeward: side or direction away from the wind (opposite of "windward"). [16]
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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 ...