To reach their full potential, Unmanned Aerial Systems (UAS), must operate over built-up areas such as towns and cities where there are many high-value tasks that a UAS can perform. Flying a UAS over built-up areas is not currently possible due to a perceived lack of safety. For this reason, there is a need for UAS that comply with recognised safety standards (e.g. DO-178C). HI-RISE is a framework within which UAS and innovative
uses for a UAS can be developed taking into account safety regulations and standards.