a man working on a large machine in a factory

Pictured here, a Pratt & Whitney F100 engine next to a GE J85 at Hermeus headquarters in Atlanta. Hermeus has accepted its first F100 engine from Pratt & Whitney. Set to be integrated into the enhanced Chimera II turbine-based combined cycle (TBCC) propulsion system, this powerful engine component marks a critical milestone in Hermeus' development of Darkhorse which is set to unlock new possibilities in both military and commercial hypersonic applications.