Pioneering a new class of propulsion for reusable launch vehicles

Our goal is to deliver a truly versatile propulsion system - a hybrid air-breathing rocket engine that can power an aircraft from a standing start to over five times the speed of sound for hypersonic flight in the atmosphere, and over 25 times the speed of sound for space access. With its wide range of operation and scalability, the Synergetic Air-Breathing Rocket Engine (SABRE™) represents a defining moment in powered flight.



A new class of engine for propelling both high speed aircraft and spacecraft.

Learn more


We have developed world leading capabilities in advanced heat exchanger development, design and manufacture.

Learn more


To build the world’s most powerful cooling systems, we’ve invested in the most advanced manufacturing technology.

Learn more

The brightest stars

We're looking for the world's most talented people to join our team. Innovation, commitment and quality are at the heart of what we do and we want you to be part of it.

See our latest vacancies and apply for your place in the team building the future of air and space flight.

Learn more

UK Space Conference 2019

We will be exhibiting at the UK Space Conference between 24 – 26 September 2019 at the International Convention Centre (ICC) in Wales.

from: Tuesday, 24th September 2019
until: Thursday, 26th September 2019

Phillip Hammond, Chancellor of the Exchequer visits Reaction Engines

Chancellor of the Exchequer, The Rt Hon Philip Hammond MP, recently visited Reaction Engines’ Culham headquarters where he was briefed on recent milestones in its SABRE development programme and saw how the company’s proprietary technology has the potential to revolutionise thermal management across multiple applications.

In News

National Composites Centre Announces New Innovation Partnership with Reaction Engines Ltd

The NCC will be working with Reaction Engines Ltd, pioneers in hypersonic propulsion technology for reusable launch vehicles, to accelerate their ceramic matrix composites research.

In News

Reaction Engines test programme successfully proves precooler capability at supersonic heat conditions

A key element of the revolutionary SABRE™ air-breathing rocket engine successfully passes the first phase of high-temperature testing.

In News