LONG BEACH, Calif. & SINGAPORE–(BUSINESS WIRE)–Odys Aviation, a dual-use aerospace company building long-range, hybrid-electric aircraft and proprietary Hybrid Power Systems, and the Commercial Aerospace business of ST Engineering, a global technology, defense and engineering group, today announced they have signed a Memorandum of Understanding (MOU) to develop a hybrid-electric power system for ST Engineering’s DrN-600 medium-lift cargo unmanned aircraft system (UAS), working toward a Master