Advanced propulsion
Combustion, liquid-kerosene ramjet technology, and propulsion-system integration for increasingly demanding flight regimes.
FAST Aerospace
Engineering speed.
Engineering speed.
Enabling missions.
FAST develops advanced propulsion technologies and high-speed aerospace systems that deliver operational advantage. We combine proprietary technology, disciplined experimentation, and system-level engineering to move critical capabilities from concept toward flight.
Engineering in practice — design, integration, and testing
Core capabilities
From advanced propulsion to integrated high-speed systems.
Experimental validation
Rapid, instrumented test campaigns designed to generate evidence, reduce risk, and accelerate technology maturation.
High-speed systems
Aerodynamics, guidance, control, and integration brought together in demonstrators and future operational platforms.
From technology to capability
A development path in motion.
FAST advances high-speed capability by progressively validating enabling technologies: first on the ground, then in flight, and finally through integration into increasingly capable demonstrators and systems.
Crossbow
Proprietary liquid-kerosene ramjet technology validated through ground-test campaigns.
Explore CrossbowStratoDart
A family of flight demonstrators bringing ramjet technology from ground testing into powered high-speed flight.
Explore StratoDartHyperDart
A reusable hypersonic air-launch platform enabled by progressively validated technologies.
Explore HyperDart
Crossbow experimental campaign
Built through testing
Crossbow. Ground-tested.
Crossbow is FAST's proprietary liquid-kerosene ramjet platform. Successfully tested more than 70 times at DLR Lampoldshausen, this hardware represents FAST' first footstep in advanced combustion, thermal management, and propulsion integration, enabling supersonic and hypersonic flight experimentation and prototyping.
- Mach 5
- Simulated inlet speed
- Jet-A1
- As a fuel
Capability development
Discuss a capability development program
Develop the next high-speed capability with FAST.
FAST works with governments, industry, and research partners to develop, test, and integrate advanced propulsion and high-speed flight technologies.