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  2. Ship ballast - Wikipedia

    en.wikipedia.org/wiki/Ship_ballast

    The advantage of water ballast is that the tanks can be emptied, reducing draft or the weight of the boat (e.g. for transport on ground) and water added back in (in small boats, simply by opening up the valves and letting the water flow in) after the boat is launched or cargo unloaded.

  3. Ballast - Wikipedia

    en.wikipedia.org/wiki/Ballast

    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 ...

  4. Ballast tank - Wikipedia

    en.wikipedia.org/wiki/Ballast_tank

    Cross section of a vessel with a single ballast tank at the bottom. A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct trim or list, to provide a more even load distribution along the hull to reduce structural ...

  5. Ballast water discharge and the environment - Wikipedia

    en.wikipedia.org/wiki/Ballast_water_discharge...

    The Convention will require all ships to implement a "Ballast water management plan" including a ballast water record book and carrying out ballast water management procedures to a given standard. Guidelines are given for additional measures then the guidelines. The goals of the convention are to minimise damage to the environment by:

  6. Wakeboard boat - Wikipedia

    en.wikipedia.org/wiki/Wakeboard_boat

    Most wakeboard boats will have several features that help to create large wakes. These include ballast, [1] hydrofoil, and hull technology. Ballast is a simple term for weight. When wakeboard boats have ballast tanks, it means that they have room for extra weight to weigh the boat down for larger wakes. For example.

  7. Stability conditions - Wikipedia

    en.wikipedia.org/wiki/Stability_conditions

    The vessel is complete and ready for service in every respect, including permanent ballast, spare parts, lubricating oil, and working stores but is without fuel, cargo, drinking or washing water, officers, crew, passengers, their effects, temporary ballast or any other variable load.

  8. Buying a Boat Can Be a Huge Mistake — Here's Why - AOL

    www.aol.com/36-reasons-not-buy-boat-110000551.html

    An easy-to-forget expense for owning a boat: You’ll need to pay a yearly registration fee to operate it on the water. The fees vary by state, type of vessel, and size, but having yet another ...

  9. Forces on sails - Wikipedia

    en.wikipedia.org/wiki/Forces_on_sails

    Sailing hydrofoils achieve boat speeds up to twice the speed of the wind, as did the AC72 catamarans used for the 2013 America's Cup. [20] Ice boats can sail up to five times the speed of the wind. [21] [22] Lateral force is a reaction supplied by the underwater shape of a sailboat, the blades of an ice boat and the wheels of a land sailing craft.