Naval construction, its main nomenclature

Shipbuilding studies all the activities of manufacturing a ship or boat, all in terms of the design of its structure and the methods to be followed for constructive work.

Shipbuilding includes 3 major blocks:

Structural Nomenclature

First of all, before we begin naming the most basic parts of ships, it is important to be clear about what a ship is.


It is any object designed for navigation, for which it must have certain characteristics.

  • Buoyancy
  • Navigability
  • Watertight structure
  • Rugged construction
  • Helm

The structural body of the ship, its main requirement is the right shape, it must have minimum weight and maximum resistance, the speed will depend on it.

Double bottom, storage and structural details

It protects cargo from contamination in the event of a grounding, protects the boat from progressive flooding, and serves to pour water and ballast into the boat to minimize movement during a storm.

  • Stowage: from the roof of the double bottom to the immediate upper deck
  • Entrepuente: the space between the two bilges on the deck
  • Bilge keel: flat parts placed along the bilge along the entire length of the prismatic section of the hull to reduce the effect of lateral roll of ships
  • Bao: reinforcement of the roof plates, they can also be placed longitudinally, the bao are mounted at the same distance as the frames
  • Truncanil: The first row of decking boards covering the top of the frames
  • Deck: the upper closure of the hull, which contributes to its watertightness and allows the creation of a living space for the crew
  • Hatch: a large square or rectangular opening left at various points in the ship's deck compartments to descend to the lower ones and enter or retrieve weapons or cargo effects
  • Vagra: a longitudinal structural element parallel to the keel that reinforces the hull against bending.

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