Ballast (disambiguation)
Ballast is any material used to provide stability to a vehicle or structure.
Ballast may also refer to:
Objects
Look up ballast in Wiktionary, the free dictionary.
- Ballast tank, a device used on ships and submarines and other submersibles to control buoyancy and stability
- Ballast weights – Pieces of dense material used to increase the mass or density of a system:
- in motor racing, metallic plates used to bring auto racing vehicles up to the minimum mandated weight
- in underwater diving, a diver weighting system is blocks of heavy material, usually lead, used to compensate for excess buoyancy of the diver and their equipment.
- Electrical ballast, used to stabilize the current flow in lamps
- Sailing ballast, ship's ballast, used to lower the centre of gravity of a ship to increase stability
- Track ballast, the layer of crushed rock or gravel upon which railway track is laid
- Ballast carried aboard an aircraft, for example:
- In gliding, weights added to maximise the average speed in cross-country competition, especially when thermal convection is strong
- In a balloon as a buoyancy compensator
- Ballast tractor, a heavy haulage road vehicle designed to pull or push heavy or exceptionally large loads
Places
- Ballast, Coevorden, a village in the northeastern Netherlands
- Ballast Head, a headland on Kangaroo Island, Australia
- Ballast Head, South Australia, a locality
- Ballast Point (Tampa), a neighborhood in Tampa, Florida, US
Other
- Ballast (film), a 2008 film about the effect of one man's suicide on three people
- Ballast (website), a Canadian news and cultural website
- "Ballast", a 1967 story of The Railway Series book Small Railway Engines
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