Propulsion Nimitz-class aircraft carrier

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one of 4 propellers of george washington.


all ships of class powered 2 a4w nuclear reactors, kept in separate compartments. power 4 propeller shafts , can produce maximum speed of on 30 knots (56 km/h) , maximum power of 260,000 bhp (190 mw). reactors produce heat through nuclear fission heats water. passed through 4 turbines shared 2 reactors. turbines power 4 bronze screws, each diameter of 25 feet (7.6 m) , weight of 66,000 pounds (30 t). behind these 2 rudders 29 feet (8.8 m) high , 22 feet (6.7 m) long, , each weigh 110,000 pounds (50 metric tons).


the nimitz-class ships constructed since uss ronald reagan have bulbous bows in order improve speed , fuel efficiency reducing wave-making resistance. result of use of nuclear power, ships capable of operating continuously on 20 years without refueling , predicted have service life of on 50 years.








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