GE Aerospace has received a contract from the US Defense Innovation Unit (DIU) to develop an air-launched hypersonic test vehicle capable of reaching Mach 5. Known as Derecho, the liquid-fueled vehicle will combine a rocket booster with a cruiser powered by GE Aerospace's dual-mode ramjet technology. The integrated vehicle will serve as an airborne testing platform for the Pentagon's Hypersonic and High-Cadence Airborne Testing Capabilities (HyCAT) program.
According to statement details released by GE Aerospace, the latest contract will fund full vehicle integration alongside initial qualification and component-level subsystem testing for key flight components. The company did not disclose the specific monetary value of the Pentagon defense contract. The initiative supports national defense priorities through scalable hypersonic testing capabilities.
The aerospace manufacturer is targeting 2028 for the initial flight of the Derecho vehicle, which will mark its first flight demonstration of liquid-fueled dual-mode ramjet technology. Dual-mode ramjets are designed to function as both conventional ramjets and scramjets, allowing efficient operation across a wide operational spectrum of supersonic and hypersonic speeds.
By utilizing atmospheric oxygen for internal engine combustion rather than carrying an onboard oxidizer, the propulsion system design allows test vehicles to carry additional fuel or larger payloads. Derecho's initial baseline configuration will not include rotating detonation combustion technology, though the subsystem could potentially be integrated into future production variants of the test platform.
GE Aerospace originally began working on the HyCAT program in 2023 following its 2022 acquisition of Innoveering, advancing through preliminary design review in 2025. The overarching HyCAT program is structured to increase testing frequency while lowering operational costs for hypersonic flight research. This platform supports airborne evaluation of experimental propulsion systems, sensors, communications hardware, and guidance technologies.
