Trajectory optimization of morphing aircraft based on multi-fidelity model Jianlei WANG, Xiaoyu CHEN, Houquan HONG, Chunna LI, Chunlin GONG and Junxin FU JNWPU, 40 3 (2022) 618-627 Published online: 19 September 2022 DOI: 10.1051/jnwpu/20224030618