ATA believes that significant benefits could be achieved through implementing the CS acoustic measurement technology in NASA wind tunnel and free-jet facilities. The resulting capability would support noise reduction goals set forth in the Aeronautics Research Mission Directorate's (ARMD's) Strategic Implementation Plan (SIP). In particular, Strategic Thrust 3: Ultra-Efficient Commercial Vehicles establishes noise improvement margins (relative to the FAA Stage 4 noise limit) of −32 dB, −42 dB, and −52 dB, for N+1, N+2, and N+3 future aircraft technology generations, respectively. ATA's technology will support progress toward all four NASA long-term research themes under the Subsonic Transport portion of the strategic thrust (3A): Ultra-efficient airframes, Ultra-efficient propulsion, Ultra-efficient vehicle system integration, and Modeling, simulation, and test capability research. In the coming decades, progress towards these objectives will be accomplished through research conducted in NASA and commercial experimental facilities. Examples of aeroacoustic measurement facilities that could readily adapt the technology include the 9' x 15' Low Speed Wind Tunnel (LSWT), Aero-Acoustic Propulsion Laboratory (AAPL), and 14' x 22' Subsonic Wind Tunnel.
Community noise exposure continues to be a significant issue near airports, confining growth and impacting quality of life and health of those affected. To counteract growing exposure, ever more stringent noise standards are expected to be implemented by regulatory agencies in the certification of aircraft. These standards are predicated on the discovery of new technologies aimed at reducing aircraft and engine noise. Further noise performance improvements will likely be asymptotic, with incremental improvements resulting in only modest noise reduction. Thus, innovative measurement technologies to better identify and diagnose noise sources within the aircraft and engine are necessary, particularly for the subscale-size test articles and low-SNR environments of wind tunnel testing. ATA believes there is a significant market opportunity for the enhanced CS toolset through adoption at engine manufacturers, airframers, and international aviation authorities. Beyond aviation, CS tools and methods will be applicable to wind turbine, automotive, and industrial noise.