Fairbanks Morse Defense has been awarded a contract by the U.S. Navy to deliver its FM 175D high-speed diesel generator engine, which will be integrated into the land-based propulsion system testing platform for the upcoming DDG(X) destroyer program. This engine will play a key role in minimizing development risks for the Navy’s future surface combatant during its early design and feasibility stages.
The DDG(X) class, intended to replace aging Ticonderoga-class cruisers and the early Arleigh Burke-class destroyers, is scheduled for construction beginning in 2032. A central feature of this next-generation warship is the Integrated Power System, which is designed to produce more than 75 megawatts—or over 100,000 horsepower—to meet the demands of next-gen sensors, directed energy weapons, and enhanced propulsion systems.
Launched in the U.S. in 2023, the FM 175D is engineered for high-performance platforms requiring compact, high-power density solutions. This diesel engine is well-suited for both propulsion and onboard power needs, especially in vessels where spatial and fuel efficiency constraints are critical.
The FM 175D generator set is capable of delivering up to 3.8 megawatts (5,096 horsepower) and operates within a power output spectrum ranging from 1,740 to 4,400 kilowatts (2,333 to 5,900 horsepower). Running at speeds of 1,800 to 2,000 RPM, it comes in modular options of 12, 16, or 20 cylinders, with each cylinder featuring a bore diameter of 175 millimeters (6.9 inches).
