Aerospace engineers research, analyze, design, synthesize, develop and test aircraft, spacecraft and weapons. Aerospace engineers who focus on aircraft are called aeronautical engineers; those who concentrate on spacecraft are called astronautical engineers.
They are essentially concerned with the aerodynamic properties of flight vehicles, such as airfoil, control surfaces, lift and drag.
Aerospace engineer can specialize in areas such as structural design, propulsion, navigation, guidance and control systems, communications or defense systems.
They may also specialize in a particular type of equipment, including commercial and military planes and jets, helicopters, space shuttles, satellites, space vehicles, missiles or or combat aerial vehicles.
Aerospace engineers can develop a special expertise in aerodynamics, thermodynamics, celestial mechanics, propulsion, acoustics, avionics or guidance and control systems.