The contract follows the $684 million Lot 6–8 block-buy agreement announced in April 2023 and supports the Marine Corps’ most advanced heavy-lift helicopter, which can lift 36,000 pounds, refuel in mid-air and conduct a wide range of assault support missions. The CH-53K, powered by three T408 engines, achieved Initial Operating Capability with the Marine Corps in April 2022.
Commenting on the award, Scott Snyder, Heavy Lift Engines Program Director at GE Aerospace, said: “This latest contract is a testament to the T408’s ability to deliver the power, durability and efficiency the Marine Corps depends on.” He added: “We are honored to support the CH-53K and the critical mission it performs for Marines, joint forces and allies around the globe.”
Each T408 engine delivers 7,500 shaft horsepower, providing 57 per cent more power than its predecessor, the GE Aerospace T64, while also offering improved fuel efficiency and maintainability. This performance enables the CH-53K King Stallion to offer three times the range and payload capacity of the CH-53E Super Stallion, supporting the transport of heavy equipment, troops and supplies.
Compared with the T64, the T408 achieves 18 per cent better specific fuel consumption, delivering significant life-cycle savings for the programme. The engine also features 63 per cent fewer parts and advanced design elements, including a more rugged compressor with erosion coating and a split casing, which enhance reliability, maintainability and aircraft availability.
In addition to the Lynn facility, GE Aerospace sites in Hooksett, New Hampshire; Rutland, Vermont; Madisonville, Kentucky; Dayton, Ohio; and Jacksonville, Florida, supply components for the programme. Germany-based MTU Aero Engines, a partner on the T408 programme, produces the power turbine.
