Study of electromagnetic environmental effects on the airworthiness certification for performance improvement aircraft

In this paper, we present the experience and process of Electromagnetic Environmental Effect (E3) on the airworthiness certification for the performance improvement aircraft. After introducing the purpose and definition of this project, we explain the different E3 improvement items for airworthiness between new development and improvement aircraft. And we also explain the method of the tailoring of E3 airworthiness certification criteria for performance improvement aircraft.