42 Engineering services in the fields of aeronautics, aerospace, aerospace vehicles and craft, space transport vehicles particularly for the re-use of space vehicles and craft suitable for atmospheric re-entry, on-board propulsion systems, composite materials, energy equipment, guidance, navigation and course control systems (GNC) and landing, safety and flight protection systems for people; analysis and expertise services in the field of aeronautics, aerospace, space transport vehicles particularly for re-use, space vehicles and craft suitable for atmospheric re-entry, on-board propulsion systems, composite materials, energy equipment, guidance, navigation and course control systems (GNC) and landing; scientific and industrial research in the fields of aerospace, aeronautics, space transport vehicles particularly for the re-use of space vehicles and craft, on-board propulsion systems, composite materials, guidance, navigation and course control systems (GNC) and landing; technical project studies in the nature of conducting of feasibility studies in the field of new technologies; testing the functionality of machines; testing of materials; aircraft and spacecraft flight tests; testing of aerospace vehicle systems, equipment and parts; technical inspection of systems, equipment and parts of aerospace vehicles; analysis, expertise and processing of the acquisition of technical data recorded during the systems test campaign, during air and space missions, equipment and parts of aerospace vehicles; developing and designing reusable space transportation vehicles, space vehicles and craft suitable for atmospheric re-entry, on-board propulsion systems, composite materials, guidance, navigation and course control (GNC) and landing systems; designing space vehicles