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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 ...
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
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.
The boats were run down the shingle beach on greased wooden skids laid at right angles to their route. Men ran alongside to hold the boat upright as it started to move, crew members scrambled aboard and others passed bags of ballast on board. As the boat entered the water she was given a final shove with a spar.
Graphical representation of the dimensions used to describe a ship. Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member.
Boat Type Class Marking Marking description Mirror: Red Italic Capital letter M on a crescent section of a circle Redwing: 18. White Number on a dark red sail Rhodes 19: An "R" surrounded by a "19", arranged to fit the contour of a circle Sonar: Six horizontal bars of progressively larger thicknesses, from top to bottom