Aeronautical Engineers design, construct and test aircraft, missiles, satellites, rockets, spacecrafts and anything that flies. Besides this, they are also involved in researching new materials, engines, body shapes and structures. An Aeronautical engineer applies scientific and technological principles to research, design, develop, maintain and test the performance of civil and military aircraft, missiles, weapons systems, satellites and space vehicles. They also work on the different components that make up the aircraft and associated systems. They focus on enhancing high-quality flight safety and standards as well as reducing overall design, operation and maintenance costs. To an extent, their role addresses the environmental impacts of air travel. Higher order specialization in the Aeronautical Engineering involves core subjects such as Aircraft Structures, Aerodynamics, Avionics, Computational Fluid Dynamics, Finite Element Methods, Material Science, Propulsion, Rockets & missiles, Vibration & Aeroelasticity.