This book presents a selection of scientific and technical results utilizing new computational methods, tools, and technologies in Aeronautical Design. Delve into the forefront of aerospace technology with this collection of articles featuring insights from the from the ECCOMAS CM3 2021 Thematic Conference in Barcelona and from the Special Technology Sessions of the ECCOMAS Congress 2022 in Oslo. Explore advancements in aeronautics design, numerical methods, and industrial technologies, including aerodynamic optimization and additive manufacturing, with contributions from leading experts and from research projects funded by the European Union. Whether you're a seasoned professional or a student, this volume offers invaluable insights into the future of aviation and transportation.