The task is to develop aircraft models for the topic manager´s CleanSky2 regional aircraft engine platform. These models shall provide aircraft requirements (e.g. thrusts, offtakes, etc.) as well as trade factors for specific fuel consumption, engine drag and engine weight on fuel burn for both a year 2000 reference aircraft and a CS2 target aircraft, the latter equipped with a geared turbofan engine . In addition an aircraft noise method has to be developed and applied to all A/C designs. Please refer to the full topic descriptions document published in this call.