B.tech aerospace engineering typically specialize in one of two areas: aeronautical engineering or astronautical engineering. Aeronautical engineers focus on the design and development of aircraft, including fixed-wing aircraft and helicopters, while astronautical engineers focus on the design and development of spacecraft, including satellites and interplanetary missions.
Aerospace engineers use a combination of scientific and engineering principles to design and test new aircraft and spacecraft systems. They use computer-aided design (CAD) software to create models and simulations of proposed designs, and they conduct tests in laboratory and flight environments to ensure that the designs meet performance and safety specifications. They also may be involved in the maintenance and repair of aircraft and spacecraft.