NavArch

it is the prime importance in designing a merchant ship. An owner requires a ship that will give him the best possible returns for his initial investment and running costs.

• Concept design

• economic factor

• Preliminary design

• Contract design

a ship that carries nonliquid cargoes such as grain or ore in bulk.

• Tanker ship

• Cargo ship

• bulk carrier

• container ship

measured amidships to the moulded line of the frame in a ship with a metal shell and to the outer surface of the hull in a ship with a shell of any other material.

• Baseline

• Width

• Depth

• Breadth

is a nonlinear measure of a ship's overall internal volume.

• Net tonnage

• Mass

• Gross tonnage

• Volume

It is the weight of water that a ship pushes aside when it is floating, which in turn is the weight of a ship (and its contents).

• Specific volume

• Displacement or displacement tonnage

• Specific weight

• gross tonnage

the ability or tendency to float in water or air or some other fluid.

• buoyancy

• floating capacity

• Flow rate

• lifebuoy

An imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be concentrated.

• Gravitational pull

• Center of gravity

• Metacenter

• Center of buoyancy

the point of intersection between a vertical line through the center of buoyancy of a floating body such as a ship and a vertical line through the new center of buoyancy when the body is tilted, which must be above the center of gravity to ensure stability.

• Center of gravity

• Center of buoyancy

• metacenter

• dead weight

Length of a vessel taken over all extremities.

• After Perpendicular (AP)

• Forward Perpendicular (FP)

• Length Between Perpendiculars (LBP)

• Length Overall (LOA)

The curvature of decks in the longitudinal direction. Measured as the height of deck at the side at any point above the height of deck at side amidships.

• Half Siding of Keel:

• Camber

• Sheer

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