File photos of the decommissioned Sao Paulo aircraft carrier, formerly known as the Foch. Brazil has sunk the decommissioned aircraft carrier that has been towed around the Atlantic for months with a damaged hull, drawing criticism from environmentalists, who say it is packed with toxic materials. Built in the late 1950s in France, whose navy sailed it for 37 years as the Foch, the aircraft carrier earned a place in 20th-century naval history. PHOTOS