PROJECT
EICLHAIR
Engine with Internal Combustion Liquid
Hydrogen for Aircraft & Industrial Resilient
Towards de-carbonisation
of aeronautics
a giant step towards
more sustainable aviation
THE AIRCRAFT
LIQUID HYDROGEN
Winner of the France 2030 call for projects with its programme
EICLHAIR programme, I-SEE is proposing its IC-D aircraft, equipped with a liquid-hydrogen
internal combustion engine powered by liquid hydrogen.
Projects & objectives
The EICLHAIR project is being led by a consortium of three companies: EHP2, an engine specialist; DTC, a cryogenic storage specialist; and I-SEE, an aircraft manufacturer.
The aim is to integrate this new engine into a light aircraft without making any major changes to its structure or operation.
H2 hybrid engine
Entirely designed by EHP2, the internal combustion engine develops 200 kW for a mass of 80 kg, with an efficiency close to 45% at cruising speed. Completely carbon-free, it is combined with an electric motor (40 kW) and an additional battery to provide a 100% electric, silent and independent emergency mode.
H2 tank
Developed by DTC, this 15 kg cryogenic liquid hydrogen tank is integrated with its fuel circuit in the current IC-10 airframe, with a gravimetric index of 30%.
This configuration offers a range of more than 2h30 of flight at cruising speed.
Aircraft integration
Provided by I-SEE, the integration of the cryogenic system and the engine has been designed to minimise the impact on the aircraft. The powertrain adaptations are designed to operate close to the original with a fossil-fuelled 912S engine, while optimising the aircraft’s performance.
They support us
