Yes, aircraft design would fall within the scope of a Diploma in Aeronautical Engineering, though it might probably be oriented more toward the basics rather than toward sophisticated design techniques. The core subjects namely aerodynamics, aircraft structures, and aerospace materials are the ones that introduce the subject and lay a foundation for understanding how an aircraft is designed and manufactured. Students learn about principles of flight, structural integrity, load distribution, and the choice of materials used in manufacturing aircraft components. As part of their education, students might also learn CAD tools and software widely used within the industry to create and simulate aircraft designs. Most of the practical classes and project work would therefore involve the design of small-scale models or components, where students can practice the theoretical concepts in a practical setting. Although the diploma gives an understanding of aircraft design, for those who wish to specialize, they may proceed with higher education: B.Tech in Aeronautical Engineering, where more in-depth training would be given about designing aircraft or even spacecraft.