On behalf of the Organizing Committee, it is our great pleasure to invite you to the International Symposium on Sustainable Aviation (ISSA 2026) and the International Symposium on Unmanned Systems: AI, Design and Efficiency (ISUDEF 2026), which will be jointly held from December 9 to 11, 2026.

Aviation and transportation systems are undergoing a major transformation driven by the need for sustainability, autonomy, connectivity, energy efficiency, and digitalization. At the same time, the growing integration of air, sea, rail, and road transportation is creating new opportunities for developing more efficient, intelligent, resilient, and environmentally sustainable mobility systems.

Under the main theme “Sustainable and Autonomous Integrated Transportation” and the motto “Connecting Air, Sea, Rail & Road,” ISSA 2026 & ISUDEF 2026 will provide an international and multidisciplinary platform for researchers, scientists, industry representatives, policy makers, professionals, and students to exchange knowledge, present research findings and emerging technologies, and discuss future strategies for sustainable and autonomous transportation.

By bringing ISSA and ISUDEF together, the symposium will create a broad scientific environment connecting sustainable aviation and energy technologies with unmanned systems, autonomous technologies, artificial intelligence, robotics, intelligent sensing, and integrated transportation systems. This combined structure will encourage interaction among researchers and professionals working across different transportation modes and technological disciplines.

ISSA 2026 & ISUDEF 2026 will address a broad range of topics, including sustainable aviation, energy and environmental technologies; electric, hybrid-electric and advanced propulsion systems; unmanned aerial and other unmanned systems; artificial intelligence, machine learning and digital technologies; autonomous systems, robotics and advanced mobility; guidance, navigation, sensing and swarm technologies; aircraft and vehicle design, aerodynamics, structures and advanced materials; avionics, control, communication and intelligent systems; safety, security, certification and regulation; air traffic, airports, operations and future aviation; integrated and multimodal sustainable transportation; and autonomous, connected and intelligent transportation systems.

Particular emphasis will be placed on the integration of air, sea, rail, and road transportation, as well as the role of artificial intelligence, autonomous systems, digital technologies, alternative energy solutions, and intelligent infrastructure in shaping the future of sustainable transportation.

The symposium programme will include keynote and invited presentations, specialist and technical sessions, industrial presentations, and oral presentations covering current developments and future perspectives in sustainable aviation, unmanned and autonomous systems, and integrated transportation.

We look forward to welcoming you from December 9 to 11, 2026, and to bringing together the international scientific, engineering, and industrial communities for three days of scientific exchange, collaboration, and discussion on the future of sustainable and autonomous integrated transportation.

Sincerely,
ISSA 2026 & ISUDEF 2026 Symposium Chairs