The work reported here is done within the FOI FoT-25 project Propulsion Integration. This project is co-planed with the work in the industry project FoT-25, TVC/LO Intake and Outlet, coordinated by Volvo Aero Corporation. This report reviews state-of-the-art and potentially useful materials and composite structures for aero applications. The focus is on the fast development of composite materials, with high temperature capabilities and good signature properties, for the intake and outlet sections of a propulsion system. Some attention is paid to new ceramic materials systems that are high temperature and corrosions resistant. Structural models are developed with the in-house finite element code Stripe. A dynamic analysis is finally performed on a number of conceptual configurations. For the air-inlet duct FOI-EIC-01, a structural dynamic analysis is done on three conceptual configurations I1-I3. Both a standard metallic aluminium structure and a composite sandwich structure are studied. The sandwich structure gives superior performance in terms of stiffness to weight. For the outlet, a structural dynamic analysis is performed on two outlet configurations O1 and O2. Two potentially useful reinforced sandwich structures of the inlet and utlet are put forward for subsequent vibration response analysis with the in-house CFD code Edge, including also the interaction between structure and the channel flow.