This research project intends to develop a demonstrator of a UAV from the balloon type (or airship or LTA - Lighter Than Air)
using hydrogen as a lifting gas. Airship propulsion and control are based on electric motors with energy stored in li-ion batteries.
This demonstrator is a rigid airship that is about 14 m long and with a volume of about 130 m3. ATM has develop the gas bag
technology for the hydrogen lifting gas as well as the pressure release valve and emergency release valve and their control and actuation
system.