What is GA or General Arrangement plan and Information provided in it ?

GA plan depicts the division and arrangement of the ship:

  • Side View.
  • Plan Views of most important Decks.
  • Cross-sections.

The views and sections display: 

  • Division into compartments (tanks, engine room, holds)
  • Location of bulkheads
  • Location and arrangement of superstructure
  • Parts of the equipment (winches, loading gear, bow thruster, life boats).

Basic data included in the GA Plan:

  •  Dimensions (Length, Breadth, Draft)
  • Volumes of the holds (Cargo Capacity Grain & Bale)
  • Tonnage
  • Deadweight
  • Engine power
  • Speed (Service Speed)
  • Class

You may also know about capacity plan  –

Capacity Plan

The capacity plan shows a longitudinal and transverse profile of the vessel, and diagrams of loadlines as well as the principal particulars, such as:

  • Gross tonnage; net register tonnage;
  • Deadweight capacity on winter, summer and tropical loadline;
  • Deadweight and displacement scale on varying draught; this scale also shows the moment to change trim 1 cm and the TPC for each draught;
  • A diagram with measurements of winter, summer, tropical and fresh water loadlines with a diagram of the position of the deck line; this is usually placed alongside the deadweight and displacement scale so that the deadweight or displacement can be found for any loadline at a glance;
  • Grain and bale capacity of all cargo spaces in cubic feet or cubic metres and the position of the centre of gravity of the space; bale capacity of all cargo spaces in cubic feet or cubic metres;
  • Capacity in cubic metres and tonnes of double bottom tanks, peak tanks, deep tanks and fuel tanks and the positions of the centre of gravity of these spaces ;
  • Capacity of all stores and refrigerating chambers.


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