The Queen Mary 2 will be the largest passenger liner ever constructed and her estimated commercial life span as an ocean liner is 40 years. Constructed at Alstom Chantiers de L'Atlantique in Saint-Nazaire (France) the vessel will be propelled by the world's first four-pod ship propulsion system, utilising two fixed and two rotating propulsion pods. These electrical outboard engines will provide both propulsion and steering for the ship. Two of pods will be able to turn through 360°, and significantly enhance maneuverability.
Powered by both diesel and gas turbines she will have twice the power of the 100,000+ ton Carnival Destiny class ships. The power plant will produce sufficient electricity to light a city of 250,000 inhabitants or the equivalent horsepower of 1,600 family cars. With an estimated cost of US$780 million, the liner will be almost 60% more expensive than the Royal Carnival Line's 137,300 ton Voyager of the Seas.
She will feature 17 decks and tower 200 feet or 62 metres above the waterline, equal to the height of a 23-story building. The overall height will be limited by the need to pass under the longest suspension bridge in the world - the Verazano Narrows Bridge that connects New York's Staten Island to Brooklyn. Her highest deck will be at the height level of the original Queen Mary's funnel top. A giant single stack will be painted in the historic Cunard Red with Black bands. From top of the funnel to the keel Titanic was 175 feet, the original Queen Mary is 181 feet, but the Queen Mary 2 will be 236 feet.
The extra thick steel hull for strength and stability on the North Atlantic route, will be painted a non-reflecting matte black in keeping with a Cunard tradition that dates back to the mid 1800's.