The difference between a Diploma in Aircraft Maintenance Engineering (AME) and a B.Tech in Aircraft Engineering is in the depth of the curriculum and the scope of career opportunities. A Diploma in AME is focused more on practical skills that are required for the maintenance, repair, and troubleshooting of aircraft. It gives students the knowledge to directly work on aircraft, make them airworthy, inspect them, and understand mechanical and avionics systems. The course is shorter, from 2-3 years, and more technical in nature, allowing practice in the maintenance facilities and in flying aircraft. On the other hand, a B.Tech in Aircraft Engineering is more extensive and advanced in nature as it deals with aerodynamics, aircraft design, systems engineering, and advanced technologies. This course is usually of 4 years duration and encompasses both theoretical knowledge and practical application in aircraft design, manufacturing, and analysis. B.Tech graduates usually are engaged in aircraft design, research, and high-level engineering jobs in aerospace companies with broader career opportunities. Thus, in a nutshell, though both may lead to an aviation career, the diploma is more maintenance oriented, while B.Tech has more extensive and specialized opportunities.