14,564 long tons (14,798 t) [ 3 ] Length: 600 ft (180 m) Beam: 80.7 ft (24.6 m) Draft: 27.6 ft (8.4 m) Propulsion: 2 Rolls-Royce Marine Trent-30 gas turbines and emergency diesel generators, 78 MW (105,000 shp ) Speed: In excess of 30 kn (56 km/h; 35 mph) Complement: 140