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.

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

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

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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.

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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

Reaction Engines announces European collaboration to investigate the impact of air-breathing propulsion systems on future space launch architectures

Reaction Engines is delighted to announce a collaboration with the French Space Agency, the Centre National d’Etudes Spatiales (CNES) and the UK Space Agency to work together on a joint study to investigate the impact of air-breathing propulsion systems on future space launch architectures.

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Reaction Engines identified in London Stock Exchange Group’s ‘1000 Companies to Inspire Britain’ 2019 report

The report is a celebration of the UK’s fastest-growing and most dynamic small and medium sized businesses (SMEs), with companies representing over 40 sectors and spanning every country and region across the UK.

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Reaction Engines and Air Liquide sign agreement for liquid hydrogen and gaseous supply system at SABRE test facility

Reaction Engines and Air Liquide have signed an agreement at the Paris Air Show for the system to supply gases and liquids to the Reaction Engines’ Westcott test facility. The test facility at Westcott, Buckinghamshire, will be a national asset bringing unique capability to support Hydrogen test requirements in the UK.

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