An Overview of the NASA Quesst Community Test Campaign with the X-59 Aircraft скачать в хорошем качестве

An Overview of the NASA Quesst Community Test Campaign with the X-59 Aircraft

Jonathan Rathsam is a Senior Research Engineer at NASA’s Langley Research Center in Hampton, Virginia. He conducts laboratory and field research on human perceptions of low noise supersonic overflights. He currently serves as Technical Lead of Survey Design and Analysis for Community Test Planning and Execution within NASA’s Commercial Supersonic Technology Project. He has previously served as NASA co-chair for DATAWorks and as chair for a NASA Source Evaluation Board. He holds a Ph.D. in Engineering from the University of Nebraska, a B.A. in Physics from Grinnell College in Iowa, and completed postdoctoral research in acoustics at Ben-Gurion University in Israel. In its mission to expand knowledge and improve aviation, NASA conducts research to address sonic boom noise, the prime barrier to overland supersonic flight. For half a century civilian aircraft have been required to fly slower than the speed of sound when over land to prevent sonic boom disturbances to communities under the flight path. However, lower noise levels may be achieved via new aircraft shaping techniques that reduce the merging of shockwaves generated during supersonic flight. As part of its Quesst mission, NASA is building a piloted, experimental aircraft called the X-59 to demonstrate low noise supersonic flight. After initial flight testing to ensure the aircraft performs as designed, NASA will begin a national campaign of community overflight tests to collect data on how people perceive the sounds from this new design. The data collected will support national and international noise regulators’ efforts as they consider new standards that would allow supersonic flight over land at low noise levels. This presentation provides an overview of the community test campaign, including the scope, key objectives, stakeholders, and challenges.