(water ballast tank)

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• Ballast tank — A ballast tank is a compartment within a boat or ship, that holds water. A vessel may have a single ballast tank near its center or multiple ballast tanks typically on either side. A large vessel typically will have several ballast tanks… …   Wikipedia

• ballast tank — noun : a tank in the hold of a ship that can be pumped full of or free from water ballast * * * ballast tank, a compartment in a ship or submarine which may be filled with water or emptied by means of pumps. Ballast tanks help control the… …   Useful english dictionary

• water bottom — noun 1. a. : the space between the outer and inner bottom plating in a ship used to carry water ballast b. : a similar space in a petroleum storage tank 2. : land underlying water …   Useful english dictionary

• Sailing ballast — Ballast is used in sailboats to provide moment to resist the lateral forces on the sail. Insufficiently ballasted boats will tend to tip, or heel, excessively in high winds. Too much heel may result in the boat capsizing. When sailing vessels… …   Wikipedia

• water — {{Roman}}I.{{/Roman}} noun 1 liquid ADJECTIVE ▪ boiling, chilled, cold, cool, freezing, frigid (AmE), hot, ice cold, icy, lukewarm …   Collocations dictionary

• Storage tank — A storage tank is a container, usually for holding liquids, sometimes for compressed gases (gas tank). The term can be used for both reservoirs (artificial lakes and ponds), and for manufactured containers. The usage of the word tank for… …   Wikipedia

• Saddle tank (submarine) — Saddle tanks are a type of ballast tank configuration fitted to some earlier submarines.Saddle tanks are fitted in pairs external to the pressure hull, one on each side, in a similar manner to that of a horse s saddle bags, the positioning of… …   Wikipedia

• Saddle tank — may refer to:* a locomotive saddle tank, a water tank above the boiler * Saddle tank (submarine), an early type of ballast tank …   Wikipedia

• trimming tank — noun : a tank either forward or aft and usually in the extreme ends utilized for changing the trim of a ship by admitting or discharging water ballast …   Useful english dictionary

• Landing Ship, Tank — A Canadian LST off loads an M4 Sherman during the Allied invasion of Sicily in 1943. Landing Ship, Tank (LST) was the military designation for naval vessels created during World War II to support amphibious operations by carrying significant… …   Wikipedia

• Thomas the Tank Engine and Friends annuals — About the Annuals=After the Railway Series was published, many Thomas Annuals were printed and sold. They are still being made in print to this day. The Annuals have contained many activities, stories, and information about Thomas and his friends …   Wikipedia