The Delta UAV is a high endurance UAV capable of carrying a payload of 5 kg and not exceeding a total weight of 25 kg (MTOW=25kg). It will be powered by an optimized internal combustion engine or an electric motor combined with a hydrogen fuel cell depending on the needs of the application. Its prototype version,  will be entirely electric and will be powered during the first tests by LiPo batteries and possibly by a fuel cell.