on and under deck. McLean oversaw the construction of wooden shelter decks, known as Mechano decking. This was a common practice in World War II for the carriage of oversized cargo, such as aircraft. It took several months to refit the ships, construct containers to carry on and below the vessels' decks and design trailer chassis to allow removable containers. On April 26, 1956, with 100 invited dignitaries on hand, one of the converted tankers, the SS Ideal-X (informally dubbed the "SS Maxton" after McLean's hometown in North Carolina), was loaded and sailed from the Port Newark-Elizabeth Marine Terminal, New Jersey, for the Port of Houston, Texas, carrying 58 Trailer Vans, later called containers, along with a regular load of liquid tank cargo. As the Ideal-X left the Port of Newark, Freddy Fields, a top official of the International Longshoremen's Association, was asked what he thought of the newly fitted container ship. Fields replied, "I'd like to sink that son of a bitch." McLean flew to Houston to be on hand when the ship safely docked. In 1956, most cargoes were loaded and unloaded by hand by longshore workers. Hand-loading a ship cost $5.86 a ton at that time. Using containers, it cost only 16 cents a ton to load a ship, 36-fold savings. Containerization also greatly reduced the time to load and unload ships. McLean knew "A ship earns money only when she's at sea", and based his business on that efficiency. In April 1957, the first container ship, the Gateway City, began regular service between New York, Florida, and Texas. During the summer of 1958 McLean Industries, still using the name Pan-Atlantic Steamship Corporation, inaugurated container service between the U.S. and San Juan, Puerto Rico with the vessel Fairland. The name was officially changed from Pan-Atlantic Steamship Corporation to Sea-Land Service, Inc. in April 1960. McLean's operation was profitable by 1961 and he kept adding routes and buying bigger ships. In August 1963, McLean opened a new port facility in Port Newark-Elizabeth Marine Terminal to handle even more container traffic. The development of the container market was slow until the late 1960s. Many ports did not have the cranes to lift containers on and off ships, and change was slow in an industry steeped in tradition. Moreover, unions resisted an idea that threatened their livelihood. In April 1966, Sea-Land commenced service between New York and Rotterdam, Bremen and