The structural department is responsible for manufacturing all the elements that compose the rocket, such as the tubes, fins, nose cone, the parts where the motor and the flight computer will be installed. Besides manufacturing, the structural department is previously assigned to design the mentioned parts. Research and documentation are required to come to a qualitative final product. Members of this department mainly work in the composites lab with various types of materials, especially composites such as carbon fibre, glass fibre, with resins, epoxy. Moreover, the team works with different machining methods like CNC machining, 3D printing, laser cut, milling, drilling, sanding. Everything is done during the work sessions which are planned in advance. The department is also looking into the possibility of building rockets out of more sustainable materials for the long-term future of AQUILO.

The structural department consists, as every department, of a department head, members and advisors. The current department is shown below. The members deal with a workload that is both practical and theoretical.