The length of a vessel along the waterline from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member. Believed to give a reasonable idea of the vessel's carrying capacity, as it excludes the small, often unusable volume contained in her overhanging ends.

Related Terms

SKIN CONDENSER

Condenser using the outer surface of the cabinet as the heat radiating medium.

AFT

Back of the vessel.

ASTERN

A backward movement of a vessel

ATHWARTSHIP

Across the ship, at right angles to the fore-and-aft centerline

UPBOUND

A vessel traveling upstream.

ABRASION RESISTANCE

The ability of a material to resist surface wear.

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.

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.

BEAM

The width of a ship. Also called breadth.

BREADTH

The width of a ship.

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