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NASA Tests Advanced Air Mobility Aircraft Wing in Wind Tunnel

NASA Advances Air Mobility with Wind Tunnel Testing of Tiltwing Aircraft Wing
NASA engineers are advancing the field of advanced air mobility (AAM) through rigorous wind tunnel testing of a 7-foot model wing at the agency’s Langley Research Center in Hampton, Virginia. Conducted during May and June 2025 in the 14-by-22-Foot Subsonic Wind Tunnel, these tests form part of NASA’s broader initiative to accelerate the development of next-generation aircraft, including air taxis and autonomous cargo drones.
Tiltwing Design and Testing Objectives
The wing model under examination features a “tiltwing” design, capable of rotating its wing and rotors from vertical to horizontal positions. This configuration allows for vertical takeoff, hovering, and conventional forward flight, making it a versatile platform for various operational environments. The tiltwing concept has garnered significant interest from multiple companies seeking to develop aircraft that can operate efficiently across diverse settings. NASA’s research aims to support not only tiltwing developers but also the wider AAM industry by providing critical performance data.
Brandon Litherland, principal investigator for the test, emphasized NASA’s commitment to the emerging AAM sector. He noted that improvements in predictive tools derived from these tests will enhance the ability to accurately assess new aircraft designs, thereby facilitating the adoption of promising technologies. “Gaining confidence through testing ensures we can identify safe operating conditions for these new aircraft,” Litherland stated.
During the experiments, researchers concentrated on the aerodynamic interactions between multiple propellers and the wing across a range of speeds and flight conditions. The use of a “semispan” or half-wing model enabled detailed analysis of propeller-wing dynamics. The comprehensive data collected will be made publicly available to support industry-wide advancements in aircraft design and safety evaluation.
Program Context and Industry Implications
This testing effort is managed by the Revolutionary Vertical Lift Technology project within NASA’s Advanced Air Vehicles Program, which underpins the agency’s Advanced Air Mobility mission. The mission’s objective is to generate essential data that will guide the development of electric air taxis and cargo drones.
Norm Schaeffler, test director at Langley, highlighted the significance of the tiltwing test in providing a unique database for validating next-generation design tools. He explained that validated tools applicable to a broad range of aircraft will accelerate design cycles and enable more informed decision-making regarding new concepts.
Despite these advancements, the AAM sector continues to face challenges. Ensuring the safety of novel aircraft through rigorous crashworthiness testing remains a priority. Additionally, integrating 5G networks to support urban air mobility systems presents technical challenges, particularly in mitigating interference from propeller operations. Regulatory bodies are actively addressing certification concerns related to these innovative aircraft designs.
Market responses to NASA’s research have included heightened interest in hybrid electric vertical takeoff and landing (eVTOL) technologies. Industry competitors are developing their own safety and communication solutions to maintain competitiveness as the sector moves closer to commercial deployment.
NASA’s ongoing research and commitment to public data sharing are poised to play a crucial role in shaping the future of advanced air mobility, fostering safer, more efficient, and innovative aircraft for urban and regional transportation.

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