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Ballast is weight placed low in ships to lower their centre of gravity, which increases stability (more technically, to provide a righting moment to resist any heeling moment on the hull). Insufficiently ballasted boats tend to tip or heel excessively in high winds. Too much heel may result in the vessel filling with water and/or capsizing. If ...
Clump weights for bells and stages:– A clump weight is a large ballast weight suspended from a cable which runs down from one side of the launch and recovery gantry, through a pair of sheaves on the sides of the weight, and up the other side back to the gantry, where it is fastened. The weight hangs freely between the two parts of the cable ...
It initially had a lead ballast of 1170 lbs (of which only 170lbs of which were in the daggerboard keel) and a hull weight of only approximately 1500 lbs for the boat itself. From Schrock's marketing brochure on the Santana 23: "The daggerboard is 170lbs. of lead encased in high density foam and fiberglass.
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 ...
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 ...
It has a fractional sloop rig, an internally-mounted spade-type rudder and a fixed fin keel with a weight bulb. It displaces 4,100 lb (1,860 kg) and carries 1,650 lb (748 kg) of lead ballast. [1] [2] [4] The boat has a draft of 6.42 ft (1.96 m) with the standard bulb fin keel and 4.33 ft (1.32 m) with the optional shoal draft keel. [1] [4]