water ballast


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water ballast

[′wȯd·ər ‚bal·əst]
(naval architecture)
Water confined to double-bottom tanks, peak tanks, or other designated compartments, for use in obtaining satisfactory draft, trim, or stability.
References in periodicals archive ?
There have been real advances made in the area of ultra high-solids coatings for sea water ballast tanks that address problems previously experienced with solvent-based systems, notably edge retention on the edges inside the tanks, reduced turnaround time, and improved conditions for workers applying the coatings," Dickey says.
We know how important it is to maintain good condition in key parts of a vessel, such as the sea water ballast tank, and we fully support this initiative to improve industrywide safety standards.
To level out for landing they had to release thousands of gallons of water ballast drenching the band which, in true military fashion, played on.
It is outfitted with a hydraulic lifting bulb keel and water ballast tanks providing excellent stability and improved upwind performance, while allowing shallow draft for gunk-holing or sailing in shoal areas.
Eventually, she did and just a decade ago saw the first time a yacht had used water ballast in the Sydney Hobart.
It has an ultrawide beam, 200 liters of moveable water ballast, twin rudders and a long fin keel with bulb.
Lahanai is a fixed keel water ballast yacht that was built in 2003 in New Zealand and designed by Brett Bakewell White.
And in a change from the traditional practice of applying black coal tar epoxy coatings in water ballast spaces, near white, long life, multi- coat, modified epoxy coatings will be applied to ease inspection and expose any corrosion or leaks immediately.
They were using water ballast and that caused her to be stern heavy.
There's a swing keel, water ballast and a simple mast raising system to make transport by trailer relatively easy.
Like it or not, water ballast is now a key factor in long ocean racing, with water-ballasted yachts having taken line honours in the past three Sydney to Hobarts -- Nokia with an open record time of one day, 19 hours, 48 minutes and two seconds in 1999, then Nicorette in 2000 and now Assa Abloy.