Back مياه الاتزان في السفن Arabic Balast BS Балласт BXR Llast Catalan Ballast Danish Ballast German Lastre Spanish Ballast Estonian Lasta Basque Lest French
Ballast is dense material used as a weight to provide stability to a vehicle or structure. Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability. A compartment within a boat, ship, submarine, or other floating structure that holds water is called a ballast tank. Water should move in and out from the ballast tank to balance the ship. In a vessel that travels on the water, the ballast will remain below the water level, to counteract the effects of weight above the water level.[1] The ballast may be redistributed in the vessel or disposed of altogether to change its effects on the movement of the vessel.
- ^ Edward Spon, Oliver Byrne, Ernest Spon, Francis N. Spon, Spons' dictionary of engineering, civil, mechanical, military, and Naval, Volume 2 (1874), p. 1205.