The theme of this special issue is to provide an overview of technologies that will be application ready or at high level of maturity by 2050. Technologies may cover a wide range of topics, including flight safety, flight efficiency, operations, environmental issues, in-service maintenance and support, air traffic management, etc. The articles will give a good impression on what will be the driving technologies in aviation by 2050.

In recent years, optimization algorithms are widely used in real-world engineering problems. This special issue is focused on application of all different optimization algorithms in the field of aerospace problems. Contributions are invited from academic, industrial or institutional researchers across the globe on a wide range of optimization topics applied to aerospace problems.

Although, all aspects of research about structural health monitoring are encouraged, we are particularly interested in research related to vibration based methods. Additionally, papers dealing with modeling of damage using finite-element and other methodologies are also of particular of interest.