Contribution Toward Single-Event and Scenario Noise Assessment of Supersonic Business Jets

DLR, German Aerospace Center (DLR) is involved in technical discussions in International Civil Aviation Organization’s Committee on Aviation Environmental Protection to quantify aircraft noise generation and define certification regulations for novel supersonic transport aircraft. A major goal is to develop the means for a full environmental assessment of these concepts and technologies to support Committee on Aviation Environmental Protection’s decision-making process. This paper presents the most recent status of the assessment capabilities for the landing and takeoff phase of novel supersonic transport vehicles. Departure procedures are optimized for lowest certification noise levels based on reduction measures as initially proposed by NASA, that is, variation of takeoff speed and thrust setting. Implications on certification levels, noise contour areas, and local air quality are evaluated along the different procedures within an internal DLR project. Within this contribution, the focus of lies on the certification noise levels. Furthermore, the required input data are generated to enable an overall scenario assessment with a corresponding Committee on Aviation Environmental Protection approved simulation tool. A full simulation of a fleet scenario was not in the scope of this work. Such a fleet scenario assessment is not feasible until reliable data on potential demand and anticipated number of flight operations is established. Overall, the capabilities of the underlying multilevel simulation process are demonstrated, that is, combining the assessment on a component and overall aircraft level with the transition into a fleet scenario.