ballast bed - significado y definición. Qué es ballast bed
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Qué (quién) es ballast bed - definición

USED IN SAILBOATS TO PROVIDE MOMENT TO RESIST THE LATERAL FORCES ON THE SAIL
Ballast water; Ship ballast; Ballast (ship); Water ballast
  • Diagram showing the water pollution of the seas from untreated ballast water discharges

Sailing ballast         
Ballast is used in ships to provide moment to resist the lateral forces on the hull. Insufficiently ballasted boats tend to tip or heel excessively in high winds.
Water ballast         
·- Water confined in specially constructed compartments in a vessel's hold, to serve as ballast.
Electrical ballast         
USED TO STABILIZE THE CURRENT FLOW IN LAMPS
Lamp ballast; Ballast resistor; Dimming ballast; Ballast (electrical); Electrical ballasts; Electronic ballast; Electronic ballasts; Choke ballast; Choke ballasts; Ballast factor; Digital ballast; Magnetic ballast
An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit.

Wikipedia

Sailing ballast

Ballast is used in ships to provide moment to resist the lateral forces on the hull. Insufficiently ballasted boats tend to tip or heel excessively in high winds. Too much heel may result in the vessel capsizing. If a sailing vessel needs to voyage without cargo, then ballast of little or no value will be loaded to keep the vessel upright. Some or all of this ballast will then be discarded when cargo is loaded.