Vessel
It is called by boat, big Boat and / or "Nave", but for specialists there is distinction to all large constructions, whose purpose is to navigate, both in the sea, lakes, rivers, etc., regardless of size, form of propulsion, draft function or construction material, hence the contradiction of dictionaries with the technique of shipbuilding. The vessels are divided into several types, among which are: large vessels, ships, boats for military use, which are transformed into floating bridges by Military Engineering, and others such as the figure, which can be extended with bandages, forming a large Transport Plan, such as Catamarans of two, three or more helmets. These are further subdivided into groups, sub-groups, families, based on numerous naval criteria. Given the widespread use of the term "Boat" as mouth units, bridge and small draft, we often wrongly see the division between vessel and boat, or between vessel and ship, due to the small ship and ship.