He sees everything


Harfang is an airship tailored for aerial data collecting applications



Quiet and stable

Lenght                                      9 m (29 ft)

Enveloppe volume                 31 m3

Payload mass                          10 kg (22 lbs)

Max speed                                50 km/h (31 mph)

Flight-time at max speed      15 h

Flight duration

Harfang is powered by a fuel cell fed with dihydrogen. This system, along with great efficiency, allows for exceptionnal flight duration.

Moreover, being an airship and unlike any other aerial vehicle, Harfang does not consume any energy to stay up un the air. The only energy required is that needed to move the airship.

Harfang can fly for 15h at an airspeed of 50km/h (31mph).

If flying slower, Harfang can be airborne for longer, and virtually indefinitely if he lets himself be carried by the wind.

Environmental aspect

The respect of the environment is at the heart of Harfang's mission. Harfang gets its energy from hydrogen. Thus, its energy consumption is as clean as the hydrogen we are feeding him.

We make sure only to get hydrogen from electrolysis, thus ensuring it is low carbon energy.

The only exhaust of the airship during the flight is steam.

Moreover, the airship is very silent, which ensures the people or wildlife underneath it won't be disturbed by its flight.

For an equally long flight, Harfang emits 5000 times less carbon dioxide than a helicopter.


Harfang can carry a payload up to 10kg (22lbs). This allows for a wide variety of sensors (cameras, lidars, weather forecast, etc) for different missions. It is up to you to choose the sensor best suited for your application. We can also developp a turnkey solution that include captation and treatment of data thanks to the partnerships we have with data specialists.

Harfang's payload capacity also allows for multiple payloads in the same flight.

We can load a primary payload to wich the mission is dedicated, and a secondary payload, for instance for atmoshperic measurements.

The payload is by default mounted in the gondola, underneath the balloon. However, if required by your application, a specific mounting configuration can be implemented.

Power supply to the payload is conceivable.