Achieving cleaner,
greener flight

Taking the heat out of aviation

From lightweight intercoolers to compact radiators – our pioneering thermal management solutions are revolutionising hydrogen fuel cells and hydrogen-powered gas turbines to make zero carbon flight possible. Our heat exchangers can also play a key role in improving the thermodynamic efficiency of current engine and aircraft technology. This results in reduced fuel burn, CO2 emissions and fuel cost, helping to enable the transition to sustainable aviation fuels. 

Transforming aerospace with heat management technology

With air travel predicted to reach over 10 billion passengers a year by 2050*, our technology can reduce fuel burn and help enable zero carbon emission flight. 

*Waypoint 2050 report, Air Transport Action Group et al, 2021. 

Low pressure drop

Lightweight, compact units with low pressure drop that minimise mass and drag. 


Extreme design flexibility, allowing for optimal integration with existing systems.  


Can be adapted for any application where heat needs to be managed. 


Extremely high levels of thermodynamic effectiveness. 

System-level optimisation: unlimited possibilities

Microtube intercooler and radiator
Case Study

Helping hydrogen fuel cell flight take off

Hydrogen propulsion is a viable route to decarbonising the aerospace industry. We’re working with partners to develop a powertrain for a hydrogen-fuelled passenger aircraft, using our world-leading fuel cell cooling technology. Building the future of aviation. 

AS9100 Aerospace quality management

In 2023 Reaction Engines achieved AS9100 aerospace quality management certification. Read more here.

Let's talk

From reducing fuel burn to enabling zero-carbon emissions in aviation, talk to us about our game-changing heat transfer technologies to revolutionise the way you manage heat in flight.