This paper analyzes the legal dimensions and regulatory framework of e-VTOL aircraft, providing a comprehensive review of the modifications and adaptations of legislation, while emphasizing the current status and integration issues within urban air transportation systems. Primary focal points encompass the progress, execution, and challenges of regulations established by the FAA, EASA, and state authorities concerning electric vertical takeoff and landing (e-VTOL) aircraft, which are critical for urban air mobility operations in metropolitan setting. These advancements must be incorporated into the urban regulatory framework, encompassing current aviation regulations and the imperative to establish new policies tailored for urban aerial transportation. This study delineates a framework and an extensive overview of regulations for diverse stakeholders, including the aviation sector, policymakers, and urban planners, emphasizing the necessity for a profound comprehension of regulations and the potential of UAM for effective integration into urban mobility systems.

The MRO shared services market has experienced significant growth in Southeast Asia. These services provide airline operators with enhanced opportunities to streamline spare part procurement, reduce maintenance costs for engines and components, and improve fleet availability. By understanding the MRO shared services framework in Southeast Asia—comprising repair workshops and maintenance centers at key regional hubs—synergies can be created to boost performance in a short time. The MRO purchasing process within these shared services generates notable cost savings and efficiency improvements for airlines. The market’s growth is driven by factors such as rising air traffic, increasing fleet sizes, and the need for regular maintenance and repairs to ensure safe, efficient aircraft operations. Compared to other countries in the ASEAN region, Vietnam, in particular, holds significant potential to position itself as a leading MRO hub in Southeast Asia. Its advantages include lower labor costs, a strategic location, and growing domestic demand for MRO services due to fleet expansions by airlines such as Vietnam Airlines, VietJet Air, Vietravel, and Bamboo Airways. However, to unlock this potential, Vietnam must address its shortcomings in infrastructure, technology adoption, and skilled workforce availability. Looking ahead, key trends are expected to shape the MRO shared services market, including expansion of MRO facilities, investments in technology, strategic partnerships and acquisitions, a focus on sustainability, and training and skills development. To capitalize on these trends, five essential measures should be adopted: investing in skill development, embracing digitalization, strengthening customer relationships, exploring partnerships and collaborations, and implementing sustainable initiatives.

The development of unmanned aerial vehicles (UAVs) and their integration into our daily lives has been rapidly accelerating in recent years. Despite these advancements, the production of UAVs often necessitates specialized and costly equipment. However, with the rapid evolution of 3D printing technologies, it is possible to build and fly UAVs. This study investigates the feasibility of employing 3D printing for the manufacturing of a 3.8-meter wingspan hybrid UAV. The system comprises two components: a hybrid aircraft and a parachute drone carried by the hybrid aircraft. Following the mechanical and aerodynamic design of the air vehicle, it was fabricated using a rapid prototyping approach, incorporating 3D printing and composite production techniques. This study demonstrates that even large-scale aircraft can be produced with limited laboratory facilities and minimal equipment. It is anticipated that this approach can make UAV production more accessible to the general public, potentially accelerating the development of UAV technology.

This study examines the relationship between operational and market efficiency and ESG scores of publicly traded aircraft manufacturers whose aircraft are extensively utilized by airline operators. The efficiency analysis of manufacturers spanning 2003-2023 was conducted using Window Network DEA methodology, which enabled comprehensive analysis by effectively multiplying the limited number of decision-makers in the industry. In the second phase, the relationship between efficiency outcomes and ESG Combined Score—comprising environmental (E), social responsibility (S), and corporate governance (G) components—was investigated using Wavelet analysis. This methodological choice was driven by its capacity to reveal both the direction and intensity of relationships between variables across temporal breakdowns. While the correlation patterns between manufacturers' operational and market efficiency and ESG Combined Scores exhibit temporal variations, strong correlations are consistently observed across all manufacturers within 10–15-year periods. The findings demonstrate that ESG integration necessitates a long-term strategic approach, extending beyond the predominantly short-term focus prevalent in existing literature. From a managerial perspective, the results indicate that ESG integration's impact on both operational and marketing efficiency demonstrates firm-specific variations.

This study aims to evaluate the performance of manufacturing companies operating in the international aerospace industry. In this context, the financial performance of 12 leading companies for the period 2019-2023 is analyzed through multi-criteria decision-making processes using the CRITIC and ARAS methods. In order to evaluate the performance of the companies in question, a number of financial indicators are taken into consideration, including total capital, capital expenditures, gross income, operating expenses, total liabilities and working capital. The CRITIC method was employed to ascertain the relative importance of the criteria, while the ARAS method was utilized to evaluate the performance of the companies in question. The results demonstrate that Transdigm Group is the most successful company, with General Electric consistently ranking second. Conversely, the performance of companies such as Airbus and Boeing has exhibited variability over time. The findings of the study offer valuable insights for strategic performance evaluation in the aerospace industry.