Luftfahrttechnik is the field of engineering focused on the design, development, and maintenance of aircraft and spacecraft. It combines principles from various disciplines, including aerodynamics, materials science, and propulsion systems, to ensure safe and efficient flight. Professionals in Luftfahrttechnik work on a range of projects, from commercial airliners to military jets and space vehicles. They are involved in research, testing, and the implementation of new technologies that enhance performance and safety in aviation and space exploration.