“…These operations are pressing a switch, 36 peg-in-hole operation, 37,124 bridge inspection, 125,126 and other contact-based missions. 41,63,83,85,89,[127][128][129][130] In addition, the cooperative aerial transportation of AM systems has also been developed to carry a heavier or bulkier object, which shows greater capacity than that of a single AM. Two multi-DOF AMs are usually used to fulfill cooperative tasks, and studied by University of Naples Federico II, 131 Seoul National University, 132,133 and University of Zurich.…”