Fairbanks Morse's Diesel Gensets for US Navy’s New Warship
Fairbanks Morse, an EnPro Industries company, will supply the Ship Service Diesel Generator (SSDG) sets for electric power generation system aboard the U.S. Navy’s newest America class amphibious assault warship, LHA 8.
Construction of the generator sets will begin later this year. They are scheduled to be delivered to shipbuilder Huntington Ingalls Industries in Pascagoula, Miss., in 2019.
The six generator sets, powered by 12-cylinder Colt-Pielstick PA6B diesel engines will deliver 24 MW of electrical power and are some of the largest medium speed diesel engines built in the United States. Fairbanks Morse also supplied SSDGs for power generation systems aboard two other ships in the America class – the USS America (LHA 6), and USS Tripoli (LHA 7) as well as the eighth ship of the Wasp Class; USS Makin Island (LHD 8).
Like the other ships in the America class, the LHA 8 will be equipped with a diesel engine-driven electrical power generation system, which provides ship service power and also drives two induction-type auxiliary propulsion motors (APM) which power the ship’s propeller drive shaft. The Hybrid-electric propulsion systems use a gas turbine engine as well as an electric motor powered by the diesel generators. The electric motors propel the ship at speeds up to around 12 knots and the generators also produce power for all of the ship’s electrical services.
This system will be in operation for about 75 percent of the time it is underway. This is more efficient at low speeds than either gas turbine or engine driven propulsion.