USS Theodore Roosevelt (CVN-71) is the fourth ship in the Nimitz class of nuclear-powered aircraft carriers. She was laid down on Halloween 1981 at Newport News shipyard, launched in October 1984 and commissioned in October 1986. The flight deck is equipped with four lifts, four steam-driven catapults and four arrester wires. The carrier is capable of launching one aircraft every twenty seconds. The nuclear-powered carrier has two General Electric pressurized water reactors driving four turbines of 260,000hp and four shafts. There are four emergency diesels of 10,720hp. The carrier already participated in several wars and operations: the Gulf War in 1991, Operation Allied Force in 1999, Operation Enduring Freedom in 2001-2 and Operation Iraqi Freedom in 2003.