Heavy tank
The Char 2C was one of the largest tanks ever produced. At the start of World War II, France and the Soviet Union were the only countries to have inventories of heavy tanks, such as the Char B1, T-35, and KV-1. The Matilda II was designed under the British infantry tank concept which is similar to the heavy tank having thick armor and weighing more than their other tanks. It’s usually separate because they have less firepower with their cruiser tanks (comparable to mediums) at the time having the same main armament but more machine guns. Later war examples were the German Tiger I and II, as well as the Soviet IS series. Note that "heavy" versus "medium" is more a question of tactical roles than weight; the Panther, for example, was a "medium" tank that outweighed most Allied "heavy" tanks.
History of the oil tanker
For tanker owners, the Six-Day War of 1967 was of greater importance. The Suez Canal closed until 1975 and freight rates skyrocketed because of the shortage of tonnage now ships had to pass the Cape of Good Hope. Even larger tankers were now built, as the limitations of the Suez Canal were not governing anymore. In only a couple of years the size of tankers quadrupled to more than 500,000 long tons and there were even plans for tankers of 1,000,000 long tons. In 1969 the first ULCC's were built.
The world's largest supertanker ever was built for Tung Chao Yung in 1979 at the Oppama Shipyard of Sumitomo Heavy Industries, Ltd. as the "Seawise Giant". This ship was built with a capacity of , a length overall of and a draft of . She has 46 tanks, of deck, and is too large to pass through the English Channel.