Pioneering space access and sustainable technologies to elevate life on Earth.

Faster. Further. More efficient. Reaction Engines’ advanced propulsion capabilities bring a step-change in technology. Making air travel more efficient, more sustainable, and the world more reachable.

Our SABRE and SABRE-derived fast jet technologies can transform space access, empower critical high-speed missions, enable high-speed transport and achieve breakthroughs in sustainable propulsion. With technology like this, we can propel the world further and faster to reach new heights.

Voice of the Customer.

At IAC2022, Rolls-Royce and Reaction Engines are listening to customer needs for space access services.

Preparing for lift-off.

Download our thought leadership on how responsive launch will be critical to defence in space.



Space access.

Our highly efficient engine is making more capable space access systems possible by eliminating the need to carry on-board oxidizer during air-breathing flight segments. The resulting increased system performance enables aircraft-like horizontal take-off and landing operations. Reducing cost, infrastructure, and mission timelines – while increasing responsiveness and system reusability. SABRE class engines are applicable in both multi-stage and single-stage architectures.

High-speed mission applications.

Our propulsion systems are capable of achieving air-breathing flight from Mach 0 to Mach 5+ as a single installation – and are well suited for a variety of potential high-speed mission areas. Both SABRE and fast jet systems create more capable high-speed vehicles, able to operate within and between expansive and unique flight envelopes. Improving many critical mission objectives.

From outer space to your place.

The Thermal Management technology we have developed through our unique air breathing engine technology is providing valuable and sustainable utility in capturing, storing and recycling energy across many applications.  See how this technology can address energy management challenges within the space domain.

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