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A Viking longship, displaying the overlapping planks that characterize clinker construction. Clinker -built (also known as lapstrake) [1][2] is a method of boat building in which the edges of hull planks overlap each other. Where necessary in larger craft, shorter planks can be joined end to end, creating a longer strake or hull plank.
A pusher, pusher craft, [1] pusher boat, pusher tug, or towboat, is a boat designed for pushing barges or car floats. In the United States, the industries that use these vessels refer to them as towboats. These vessels are characterized by a square bow, a shallow draft, and typically have knees, which are large plates mounted to the bow for ...
The Act allowed the production of a system of locks and dams along the Ohio. In 1929, the canalization project on the Ohio River was finished. The project produced 51 wooden wicket dams and 600 foot by 110 foot lock chambers along the length of the river. During the 1940s, a shift from steam propelled to diesel powered towboats allowed for tows ...
The U.S. Coast Guard and Kiribati police boarded two Chinese fishing boats during a patrol against illegal fishing in the Pacific Islands nation's vast exclusive economic zone this month but found ...
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A plan and side view of a generic, empty canal lock. A lock chamber separated from the rest of the canal by an upper pair and a lower pair of mitre gates.The gates in each pair close against each other at an 18° angle to approximate an arch against the water pressure on the "upstream" side of the gates when the water level on the "downstream" side is lower.
A lugger is usually a two- or three-masted vessel, setting lug sails on each mast. [a] A jib or staysail may be set on some luggers. More rarely, lug topsails are used by some luggers — notably the chasse-marée. A lug sail is an asymmetric quadrilateral sail that fastens to a yard (spar) along the head (top edge) of the sail.
Naden Boats is a line of aluminum fishing boats manufactured in Canada by Temagami Boat Manufacturing Inc. Six models are offered, ranging from 11’11" to 16’ in overall length. They are noted for their expanded polystyrene flotation, rigid construction, and semi-V planing hull with five keels. [1]