gross tonnage

The gross tonnage (GT), abbreviated as gross tonnage, is an important figure in shipping that indicates the size and capacity of a ship. It serves as a unit of measurement for the displacement of a ship and is measured in register tons.

The GT of a ship comprises the entire volume of the ship, including all enclosed spaces such as cargo holds, engine rooms, crew quarters, recreation rooms and other areas. However, it does not take into account the space below deck, which is required for the buoyancy of the ship.

The GT is calculated according to internationally defined rules, which are laid down in the International Convention on Tonnage Measurement of Ships of 1969. These rules define the method for determining the gross tonnage and the consideration of various factors such as ship length, width, draught and structure.

The GT plays an important role in the classification of ships, the calculation of port and canal dues and the determination of the carrying capacity and cargo volume of a ship. It enables shipping companies to transport freight and assess the economic profitability of their ships.

Overall, the gross tonnage is an important indicator for the maritime industry, allowing the size, capacity and efficiency of ships to be evaluated and compared. It provides valuable information for shipping companies, port authorities, insurance companies and other players in the shipping industry.