The process of design often involves examining current design and improving upon it. While this lesson may, at first, seem basic to a Manufacturing or design student, the instructor may choose to begin with the model rocket and move into a new phase of design which improves on some aspect of flight, fuel efficiency, drag, draft, environment, materials, et. al. The aerodynamic principles are also applicable to the Transportation industry in the design, construction, and modification of cars. (dam)