Why Hybrid Rocket Propulsion?

The combination of liquid oxidiser and solid fuel has always been an enticing option to reduce the cost and risk of spaceflight - the traditional fuel combinations rendered this promising approach impractical - until now:

+            +            =

explosive free

more control

less complexity

Lower cost

HRF-1: Making Rockets Simple

HRF-1 is a unique solid fuel proprietary to ESS which has undergone 5 years of testing in ground firings. HRF-1 solves the historical challenges of hybrid rocket propulsion, and delivers superior and stable performances to enable this game-changing technology to take flight

The combination of safety and simplicity leads to lower launch cost for you

The combination of solid rocket style combustion chamber results in only one fluid system - reducing the complexity

Wide throttle range, easy ignition & shutdown gives

Improved system control, reliability and mission flexibility

Safer to manufacture, transport and operate

- reducing the risk, improving the reliability and lowering the cost