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  2. Topping lift - Wikipedia

    en.wikipedia.org/wiki/Topping_lift

    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.

  3. Centreboard - Wikipedia

    en.wikipedia.org/wiki/Centreboard

    A centreboard or centerboard (US) [1] is a retractable hull appendage which pivots out of a slot in the hull of a sailboat, known as a centreboard trunk (UK) or centerboard case (US). The retractability allows the centreboard to be raised to operate in shallow waters, to move the centre of lateral resistance (offsetting changes to the sailplan ...

  4. Strépy-Thieu boat lift - Wikipedia

    en.wikipedia.org/wiki/Strépy-Thieu_boat_lift

    The boat lift was designed during the Canal du Centre's modernisation program in order to replace a system of two locks and four 16-metre (52 ft) lifts dating from 1888 to 1919. [1] The canal itself began operations in 1879 and its locks and lifts were able to accommodate vessels of up to 300 tonnes.

  5. Liftboat - Wikipedia

    en.wikipedia.org/wiki/Liftboat

    The liftboat Kaitlyn Eymard was built in the US by Conrad Industries in 2002. A liftboat is a self-propelled, self-elevating vessel used in support of various offshore mineral exploration and production or offshore construction activities. A liftboat has a relatively large open deck to accommodate equipment and supplies, and the capability of ...

  6. Goupitan shiplift - Wikipedia

    en.wikipedia.org/wiki/Goupitan_shiplift

    The Goupitan shiplift ( simplified Chinese: 构皮滩升船机; traditional Chinese: 構皮灘升船機; pinyin: Gòupítān Shēngchuánjī) is a boat lifting system on the Wu River, a tributary of the Yangtze River in Guizhou Province, southwest of China. A system of three boat lifts supplements the Goupitan Dam in order to provide shipping ...

  7. VB-10,000 (ship) - Wikipedia

    en.wikipedia.org/wiki/VB-10,000_(ship)

    Beam. 314 feet (96 m) Draught. 20 feet (6 m) Propulsion. (8) 1,000 HP azimuthing thrusters (4/barge) The VB-10,000 is a heavy-lift twin- gantry catamaran consisting of two truss space frames atop two barges. The design was derived from Versabar's earlier VB-4000 (aka Bottom Feeder), [1][2] which was developed to clear debris from toppled oil ...

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