Net tonnage measures volume of airspace. Like deadweight tonnage, it is used to rate a ship's cargo carrying capacity. To determine NT, the cubic footage of all non-cargo spaces - crew accommodations, machinery and navigation areas, the engine room, and the fuel and water tanks - are measured. This measurement is divided by 100 to convert it to net tons. This figure is then subtracted from the gross tonnage figure. The result is net tons of cargo carrying capacity in cubic measure. See also gross tonnage.
The measure of the useful capacity of a vessel determined in accordance with the provisions of the international convention on tonnage measurement of vessels.
A vessel's gross tonnage minus deduction for space occupied by accommodations for crew, machinery for navigation, the engine room, and fuel. A vessel's net tonnage represents the space available for the accommodation of passengers and the stowage of cargo. A ton of cargo, in most instances, occupies less than 100 cubic feet. The tonnage of cargo carried is usually greater than the gross tonnage.
(0.2+0.02 log10(Vc)) Vc (4d/3D)2, for passenger ships the following formula is added: 1.25 (GT+10000)/10000 (N1+(N2/10)), where Vc is the volume of cargo holds, D is the distance between ship's bottom and the uppermost deck, d is the draught N1 is the number of cabin passengers, and N2 is the number of deck passengers.) "Ton" is figured as an 100 cubic foot ton.
Vessels measurement of cargo carrying capacity.
This is the gross tonnage less the machinery, boiler and bunker, crew and stores spaces.
The tonnage most frequently used for the calculation of tonnage taxes and the assessment of charges for wharfage and other port dues. Net tonnage is obtained by deducting from the gross tonnage, crew and navigating spaces and an allowance for the space occupied by the propelling machinery.
The cubical space available for carrying cargo and passengers.
Expressions Nip Navigation , Maneuvers
A vessel's net tonnage expresses the space available for passengers and cargo. This figure is arrived at by subtracting the amount of space occupied by accommodation for crew, machinery, navigation equipment, and the engine room and fuel from the vessel's gross tonnage.
equals gross tonnage minus deductions for space occupied by crew accommodations, machinery, navigation equipment and bunkers. It represents space available for cargo (and passengers). Canal tolls are based on net (registered) tonnage.
A vessel's gross tonnage minus deductions of space occupied by accommodation for crew, by machinery, for navigation, by the engine room and fuel. A vessel's net tonnage expresses the space available for passengers and cargo.
