Aerospace Engineers are responsible for the design and operation of modern aerospace vehicles including the aerodynamics of these vehicles, their structure and material composition, the flight mechanics and controls systems that allow them to fly, and their propulsion systems.  Aerospace Engineers design, develop, manufacture and test extraordinary machines such as low- and high-speed aircraft, spacecraft and missiles. Aerospace Engineers are also employed in the design and analysis of racecars, competitive sailboats, and sports equipment. There is an increasing demand for Aerospace Engineers to have a multi-disciplinary perspective to aid in the development of complex aviation, defense and space exploration systems.