Displacement is usually measured in units of tonnes or long tons. Centralized chillers generally have capacities ranging from ten tons to hundreds or thousands of tons. This rapid acceleration is noteworthy for cars weighing well over 6,000 pounds (2.7 metric tons). An estimated 80,000 metric tons of plastic inhabit the patch, totaling 1.8 trillion pieces. Skids are impractical for helicopters weighing more than four tons. These were limited to 10,000 tons and 8-inch guns. Give me 3 million tons [of oil] over the plan. It has a total weight of 7000 tons. An estimated 9,000 tons of product had been recalled. Aircraft of up to 80 tons were envisaged. The limit of 10,000 tons displacement still applied to both. Total production in 2008 of about 19,000 tons was reported. Supplies improved to 5,000 tons a day. Bethlehem Steel fabricated much of the 60,000 tons of steel. It was made out of 186 stones weighing an average of 2.2 tons each.