Abstract:Civil aircraft should conduct noise airworthiness certification according to the relevant noise airworthiness regulations and provisions in order to obtain the type certificate, and noise flight test is the best way to show compliance with noise airworthiness regulations. We researched the airworthiness certification technologies for the takeoff noise concurrent flight testing of the Y12F aircraft with relevant noise airworthiness documents published by CAAC and FAA. These studies include measurement equipment, test site, meteorological conditions, flight test procedures, data measurement and processing, etc. The airworthiness certification methods formed in this paper have conducted the takeoff noise flight testing of the Y12F aircraft effectively, and is accepted by CAAC and FAA synchronously which laid a foundation for obtaining the type certificate of CAAC and FAA. The research results can provide reference and guidance for the noise airworthiness certification of new propeller-driven small airplanes and commuter category airplanes, as well as references for the applicants who are willing to obtain the type certificate of FAA.