The U.S. Navy has selected Fairbanks Morse Defense to supply its FM 175D high-speed diesel generator engine for integration into the testing infrastructure of the DDG(X) program, a major step in the development of its future fleet of large surface combatants. This initiative supports early-phase risk mitigation as the DDG(X) moves through design evaluations, with full-scale production slated to begin in 2032.
This next-gen destroyer is intended to phase out the aging Ticonderoga-class cruisers and the first two flights of Arleigh Burke-class destroyers. The ship will be equipped with a powerful Integrated Power System designed to produce over 75 megawatts of energy (roughly 100,530 horsepower), enough to support energy-intensive systems like advanced radar, sensors, and directed-energy weapons, as well as upgraded propulsion.
The FM 175D, which debuted in the U.S. market in 2023, is optimized for naval environments where compact design, weight efficiency, and fuel economy are essential. It supports both mechanical propulsion and electrical generation duties, making it versatile for modern naval vessels.
This engine can produce a peak output of 3.8 megawatts (approximately 5,096 horsepower), with operational flexibility across a power band of 1,740–4,400 kilowatts (2,333–5,900 horsepower) and rotational speeds between 1,800 and 2,000 RPM. The engine is configurable with 12, 16, or 20 cylinders and features a bore size of 175 mm (6.9 inches), aligning with naval specifications for modular and scalable propulsion systems.
