A great interest in the utilization of unmanned airships has grown in the past few years, due to their potential applications in surveillance, exploration and monitoring tasks. The airships are aerospace vehicles that get most of their lifting capability from aerostatic or buoyant lift, using gases which are lighter than air. A project involving an unmanned airship prototype, with the partnership of the University "Federico II," led to this research work concerning new stability and control methods and approaches for airship.