UAV(unmanned aerial vehicle) composite aircraft structural design is one successive approximation optimal process which under a weight as the goal and many restrictive conditions.Structural design and analysis need to balance the requirements of many respects.On the basis of optimal design theory with large-scale commercial software Patran & Nastran,‘full stress' optimization method was used to analysis a certain type of UAV inlet composite laminated structure of the initial layer of strength and stiffness....