Fairbanks Morse Defense (FMD), Beloit, Wis., a portfolio company of Arcline Investment Management, has been awarded a contract to supply the U.S. Navy with an FM 175D high-speed diesel generator engine. The engine will be integrated into the DDG(X) program’s land-based propulsion system test site to support risk reduction during the design phase of the Navy’s next-generation destroyer program, FMD said in a press release.

“The selection of the FM 175D for this important land-based test highlights the superior power density needed on modern surface combatants, ensuring the DDG(X) has the energy needed to operate advanced combat systems while maintaining operational efficiency,” said Mike Clark, FMD’s chief operating officer.

FMD said DDG(X) is intended to replace the Navy’s Flight II Ticonderoga-class cruisers and Flight I/II Arleigh Burke-class destroyers. The platform is currently in the design and feasibility stage, with construction expected to begin in 2032.

The new class of large surface combatants will utilize an integrated power system capable of generating, converting, and distributing electrical power throughout the ship. The DDG(X) electrical plant is expected to deliver more than 75 megawatts of power to support ship operations, high-energy weapons, sensors, and propulsion systems.

FMD noted the FM 175D generator set produces 3.8 megawatts and operates at 1,800 to 2,000 rpm, with a power output range of 2,333 to 5,900 hp (1,740 to 4,400 kilowatts). It is available in 12-, 16-, or 20-cylinder configurations with a 175-mm bore. The company noted the engine can support either mechanical propulsion or onboard power generation applications.

Fairbanks Morse Defense said it introduced the FM 175D to the U.S. market in 2023.