T. Hikmet Karakoc, PhD, He graduated from Anadolu University, the Department of Mechanical Engineering. He received his M.Sc. degree in Mechanical Engineering from the Yildiz Technical University. He received his Ph.D. degree from the Anadolu University, where he started his full-time teaching. He received his full Professorship from Anadolu University, and he is currently researching at the Eskisehir Technical University. He has a wide range of research interests. His interest topics are "Sustainable Aviation, Aircraft Propulsion System, Insulation, Heating Ventilating, and Air Conditioning, Indoor Air Quality, Gas Turbines, Cogeneration Systems, Renewable Energy, Energy Economics, Fuels, and Combustion." He has taken part in numerous Industrial Projects on these topics as a researcher, consultant, and project manager for over 30 projects and corporations. He also started a contest on special insulation applications among university students. He also served as an Editor-in-Chief, guest editor, and editorial board member roles for international scientific journals. He published national and international papers in over 300 and 40 books. Professor Karakoc actively follows membership positions for the Chamber of Mechanical Engineers and many sectorial associations, international scientific organizations, and societies. He is an active Board of Directors member of the International Association for Green Energy. He is currently holding the presidency of the SARES organization, which is actively supporting scientists and students in the "Sustainable Aviation" subject. He is also organizing four symposiums on aviation subject areas as a Founding Chair.Can Özgür Çolpan, PhD, received his bachelor's and master's degrees from the Mechanical Engineering Department of the Middle East Technical University in 2003 and 2005, respectively. He conducted his PhD studies at the Department of Mechanical and Aerospace Engineering of Carleton University between2005 and 2009. He continued his studies as a post-doctoral researcher there between 2009 and 2010 and at Ryerson University between 2010 and 2012. He has been working as a member of the Department of Mechanical Engineering of Dokuz Eylül University since 2012. In 2014 and 2019, he was appointed to the positions of Associate Professor and Professor, respectively. Dr. Çolpan has conducted research in the field of fuel cells and hydrogen and the mathematical modeling of integrated energy systems. His areas of research include modeling of direct internal reforming solid oxide fuel cells, material development and mathematical modeling for direct methanol fuel cells, development of high temperature PEM fuel cells, simulation and optimization of the fuel cell vehicle powertrains, catalytic dehydrogenation of solid hydrogen storage materials, analysis of organic Rankine cycle based systems, and analysis of biofuel fueled turbojet.Alper Dalkıran, PhD, received his bachelor's degree from the Faculty of Aeronautics and Astronautics at Eskisehir Technical University. He completed his MSc degree in the School of Science at Anadolu University and earned his PhD in 2017 on Environmental Sustainability of Airports from the School of Science at Anadolu University. He is currently working in the School of Aviation at Suleyman Demirel University. He has a 17-year of professional experience in Airports in Information Technology, Automation, and Integration. He has managed teams on system design, projects, tests, commissioning, operational readiness, and operations. He is now lecturing in Flight Theory, Airline Management, and Airport Design subjects.

• Opportunities and Challenges in Sustainable Aviation.- Emission Reduction Methods in Sustainable Aviation.- Alternative Fuel Types in Aviation.- New Propulsion Technologies in Aviation.- Building Green Airports.- Maintenance Management and Operations on Sustainable Aviation.- Environmental/cost Efficiency, Energy Savings Algorithms.- Commercial Air Transport Operations.- Integrated Systems, Hybrid Systems and Integration Technologies.- New Developments in Gas Turbine Engines.- Compressor and Turbine Cooling.- Smart and Multi-functional Materials and Structures.