Eager to develop mobility for students and BTSs after two years made more complex by the health context (Covid 19), we had evaluated the number of mobilities to be planned at 12 in order to relaunch the dynamic without being too ambitious, aware of the negative impact caused by this crisis on mobility. We therefore applied for a grant for 6 staff and 6 students (internships). In particular, the aim was to create new partnerships with professionals in the aeronautics industry, and to encourage students in the BTS FED (fluids energy refrigeration and air conditioning) to do their work placements abroad. In this context, we were also keen to include students from disadvantaged backgrounds, and to raise awareness of sustainable development and European citizenship among both students and staff.