Towards a CO2 emission standard for supersonic transport: A Mach 2 concept case study

Abstract. This paper reports the work performed in the field of the H2020 MORE&LESS Project to contribute to shaping global environmental regulations for supersonic aviation. The existing CO2 emission standard, which is defined for subsonic aircraft, is analyzed. However, the applicability of this standard to supersonic concepts needs to be assessed. A case study of a Mach 2 concept, based on the Concorde configuration, is considered to explore modifications needed for the CO2 metric value calculation. The results provide insights into the CO2 metric value for a supersonic aircraft and its comparison with subsonic aircraft limits.