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Anderton Boat Lift. The Anderton Boat Lift is a two- caisson lift lock near the village of Anderton, Cheshire, in North West England. It provides a 50-foot (15.2 m) vertical link between two navigable waterways: the River Weaver and the Trent and Mersey Canal. The structure is designated as a scheduled monument, and is included in the National ...
Planing (boat) A Contender dinghy planing on a broad reach. Note the typical way the bow lifts up while the stern skims over the water. Planing (/ ˈpleɪnɪŋ / PLAY-ning) is the mode of operation for a waterborne craft in which its weight is predominantly supported by hydrodynamic lift, rather than hydrostatic lift (buoyancy).
Topping lift. The topping lift (more rarely known as an uphaul) is a line which applies upward force on a boom on a sailboat. Part of the running rigging, topping lifts are primarily used to hold a boom up when the sail is lowered. [1] This line would run from near the free end of the boom (s) forward to the top of the mast.
Shiplift. A shiplift is a modern alternative for a slipway, a floating dry dock or a graving dry dock. A shiplift is used to dry dock and launch ships. It consists of a structural platform that is lifted and lowered exactly vertically, synchronously by a number of hoists. First, the platform is lowered underwater, then the ship is floated above ...
Naval architecture. Naval architecture, or naval engineering, is an engineering discipline incorporating elements of mechanical, electrical, electronic, software and safety engineering as applied to the engineering design process, shipbuilding, maintenance, and operation of marine vessels and structures. [1][2] Naval architecture involves basic ...
The idea of a boat lift for canals can be traced back to a design based on balanced water-filled caissons in Erasmus Darwin's Commonplace Book (pp. 58–59) dated 1777–1778 [3] In 1796 an experimental balance lock was designed by James Fussell and constructed at Mells on the Dorset and Somerset Canal , though this project was never completed ...
Geheyan dam boat lift, also in Hubei Province, capable of lifting vessels of 300 tons displacement. The dam was completed in 1994, but technical difficulties delayed the opening of the ship lift for four more years. Longtan dam boat lift, capacity to lift vessels of 250 tons, in a basin 40×10.8×1.8 meters, and a vertical lift of 68.5 meters. [2]
Design. Pioneering Spirit is the world's largest vessel, in terms of her gross tonnage (403,342 gt), breadth (123.75 m or 406 ft), and displacement (1,000,000 tonnes or 980,000 long tons). [4][2] The maximum 48,000-tonne (53,000-short-ton) topside lift capacity is achieved by operating as a semi-submersible.
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