The increasing potential applications of unmanned aerial vehicles (uav) provides the motivations for numerous research to focus on developing fully autonomous and self-guided uavs with the purpose of controlling uavs both in confined environments as well as in open airspace. current uavs control systems, throughout the world are able to offer the flexibility and preciseness of trajectory regulation required in autonomous flight technology. however there exist a very few uavs which are capable of performing both verical take-off and landing (vtol) and the capabilities of fixed wing aircraft. these systems have to be intelligent enough while transitioning between fixed wing and vtol modes, and in performing complex maneuvers through confined airspace. today new control technologies in this area are significantly increasing and many researches have been taken up, all around the world, towards developing more robust and efficient autopilots for this application. here, we present an indigenously developed convertible uav known as the ‘hamilton’ that possesses the aforementioned capabilities.