Longitudinal timbers fastened to a vessel to divert and flatten spray or provide a stepped hull shape to optimise wetted surface area in planing craft.
Related Terms |
SKIN CONDENSER
Condenser using the outer surface of the cabinet as the heat radiating medium.
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AFT
Back of the vessel.
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ASTERN
A backward movement of a vessel
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ATHWARTSHIP
Across the ship, at right angles to the fore-and-aft centerline
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UPBOUND
A vessel traveling upstream.
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ABRASION RESISTANCE
The ability of a material to resist surface wear.
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CUTTING WEAR
Comes about when hard surface asperities or hard particles that have embedded themselves into a soft surface and plough grooves into the opposing harder surface, e.g., a journal.
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ADHESIVE WEAR
Often referred to as galling, scuffing, scoring, or seizing. It happens when sliding surfaces contact one another, causing fragments to be pulled from one surface and to adhere to the other.
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BEAM
The width of a ship. Also called breadth.
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BREADTH
The width of a ship.
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