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2. Capstan (nautical) - Wikipedia

   en.wikipedia.org/wiki/Capstan_(nautical)

   A capstan is a vertical- axled rotating machine developed for use on sailing ships to multiply the pulling force of sailors when hauling ropes, cables, and hawsers. The principle is similar to that of the windlass, which has a horizontal axle. The capstan and the anchor windlass on the deck below that it drives.

3. Mark V Special Operations Craft - Wikipedia

   en.wikipedia.org/wiki/Mark_V_Special_Operations...

   Final design includes a new 115' by 37' U-shaped, reinforced concrete pier, 60' long concrete floating docks to berth five vessels, and a gangway. The pier was designed to support the combined load of a 50-ton Mark V and a 70-ton marine travel lift used to lift the vessels out of the water and transport them to the maintenance facility. [12]

4. Topsides - Wikipedia

   en.wikipedia.org/wiki/Topsides

   The topsides on a boat, ship, watercraft, or floating production storage and offloading (FPSO) vessel, is that part of the hull between the waterline and the deck. [1] It includes the visible parts of the bow, stern, sheer, and, if present, tumblehome. On an offshore oil platform, topsides refers to the upper half of the structure, above the ...

5. Semi-trailer aerodynamic device - Wikipedia

   en.wikipedia.org/wiki/Semi-trailer_aerodynamic...

   Semi-trailer aerodynamic device. Semi-trailer aerodynamic devices are devices affixed to semi-trailers, for the purpose of reducing aerodynamic drag caused by air turbulence. The two major types of device in use are trailer skirts (or side skirts), affixed to the underside of trailers, and trailer tails (or boat tails, or rear fairings ...

6. Container chassis - Wikipedia

   en.wikipedia.org/wiki/Container_chassis

   A container chassis, also called intermodal chassis or skeletal trailer, is a type of semi-trailer designed to securely carry an intermodal container. Chassis are used by truckers to deliver containers between ports , railyards, container depots, and shipper facilities, [ 1 ] : 2–3 and are thus a key part of the intermodal supply chain .

7. Hull (watercraft) - Wikipedia

   en.wikipedia.org/wiki/Hull_(watercraft)

   Hull (watercraft) A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is ...