Wikipedia
Gross tonnage (often abbreviated as GT, G.T. or gt) is a nonlinear measure of a ship's overall internal volume. Gross tonnage is different from gross register tonnage. Neither gross tonnage nor gross register tonnage should be confused with measures of mass or weight such as deadweight tonnage or displacement.
Gross tonnage, along with net tonnage, was defined by The International Convention on Tonnage Measurement of Ships, 1969, adopted by the International Maritime Organization in 1969, and came into force on July 18, 1982. These two measurements replaced gross register tonnage (GRT) and net register tonnage (NRT). Gross tonnage is calculated based on "the moulded volume of all enclosed spaces of the ship" and is used to determine things such as a ship's manning regulations, safety rules, registration fees, and port dues, whereas the older gross register tonnage is a measure of the volume of only certain enclosed spaces.
Usage examples of "gross tonnage".
The Emergents had brought twice the gross tonnage, and the best guesses were that they carried proportionately more weapons.
Made of oak, it was eighty-five feet long, had a gross tonnage of seventy, a Marconi rig, and a one-hundred-and-eighty-horsepower Diesel engine.
In the last three months of 1961, total gross tonnage of ships heading for Cuba was 183,923.
But in just the past two monthsJuly and August of 1962the gross tonnage had jumped to 518,196.
Considered huge then and now with a gross tonnage of 53,329 and measuring 990 feet in length with a 101-foot beam, she was not the world's largest liner.
Built on a fiord in Norway, she was 527 feet long and carried a gross tonnage of 16,500.
As he had made his way on foot, past enormous, scavenger-ready drill units, gross tonnage excavators, up-ended conveyor lines, and surrounding slag heaps, then into the midst of the shabby plastoid buildings that had become by default the planet's only inhabited zone, it had struck him that even the dirt and rocks here were of an inferior quality.
The ship was known to be one of the deadliest and most thoroughly armored in the galaxy, the equivalent of anything matching its gross tonnage in Emperor Palpatine's war fleet.
She spoke of dollars and gross tonnage, not of pas sion and heat, and her language was formal, Mr.
Impressive enough, considering the gross tonnage under Riutta's control had just tripled.
At 750 feet in length and a gross tonnage of 50,000, she carried 1,600 passengers in opulent style, served by 900 crew members.