Reaction Engines Ltd ('REL') is a privately held company located in the United Kingdom and was formed in 1989 to develop the technologies needed for an advanced combined cycle air-breathing rocket engine class called SABRE that will enable aircraft to operate easily at speeds of up to five times the speed of sound or fly directly into Earth orbit.
We have achieved a breakthrough in aerospace engine technology by developing ultra-lightweight heat exchangers 100 times lighter than existing technologies that allow the cooling of very hot airstreams from over 1,000 °C to minus 150 °C in less than 1/100th of a second.
Reaction Engines' technology has undergone extensive independent technical assessments, undertaken by the European Space Agency at the request of the UK Government, which have confirmed the viability of the engine technology and its vehicle applications.
"ESA are confident that a ground test of a sub-scale [SABRE] engine can be successfully performed to demonstrate the flight regime and cycle and will be a critical milestone in the development of this program and a major breakthrough in propulsion worldwide."
This integrated air-breathing and rocket propulsion technology enables the following vehicle applications:
Two decades of research work has resulted in technological leadership in the areas of:
Our headquarters, engineering centre, assembly and engine test facilities are located at the Culham Science Centre near Abingdon in Oxfordshire, UK.
Reaction Engines also owns the following subsidiaries:
Brite Precision is a high precision machining facility dealing in most metals and plastics, and specialises in high precision machining and assemblies of scientific and research equipment.
Crossman Engineering provides specialist sheet metal fabrication and welding services and is ISO 9000/1 certified.