This course presents the basic structural analysis principles of aerospace structures with special emphasis on aircraft structures. Aerospace structures are generally made up of thin walled members which are assembled together to bring about the final sub-structure such as wing, control surfaces, fuselage, tail etc. The main aim of the course is to complement the analysis principles acquired in Strength of Materials and Elasticity and apply them for the analysis of thin walled members which form the components of sub-structures of aircraft. Analysis principles are then applied to the structural analysis of sub-structures mentioned above which are the main building blocks of the aircraft. In various parts of the course reference is made to the application of numerical solution of complex built-up aircraft structures.