BATH — Workers have fired up one of the main turbines aboard the future USS Zumwalt, marking a milestone in construction of the stealthy warship.

Engineers and technicians at Bath Iron Works have spent months in preparation for lighting the turbines, similar to units on a Boeing 777. The turbines will provide the grunt for generators that drive the largest destroyer ever built for the U.S. Navy.

Spokesman Matt Wickenheiser said one of the main turbine units was fired up on Tuesday.

When it heads to sea, the warship will have tremendous electrical capabilities. The two main generators, along with two auxiliary units, can produce 78 megawatts, enough electricity to power about 10,000 homes.

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