Hydrostatics and stability

Ship form

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Principal parameters to describe a ship

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The main dimensions of a ship are:

LBP = Length between perpendiculars
LOA = Length overall
LWL = Length at water line
  B = Breadth
  D = Height
  T = Draught (some use "d")
  F = Free board

Some other used characteristics to describe a ship are:

v = speed
DWT = dead weight
Δ = total mass of the ship with cargo

Buoyancy

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The total weight of the ship:  

The absolute value of the water pressure:  

Fz = Archimedes force

Hydrostatic properties

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Concept of stability

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Curves describing stability

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Stability in damaged condition

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See also

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