The Chinese imitation diamond DA40/DA42 single-engine and double-engine switching five-level flight trainer CNFSimulator.FTD.D40/D42 (hereinafter referred to as D40/D42 FTD) is a flight trainer independently developed by Chinese imitation intelligence based on the Diamond DA40/DA42 model. The equipment adopts advanced flight control software, graphic image system and electromechanical integration system, which conforms to CAAC FTD Level 5, FAA FTD Level 5 and EASA FNPT II standards, and can quickly switch between DA40 and DA42 models. D40/D42 FTD can simulate G1000 integrated avionics system and support flight management system and GPS operation. The design of flight control and force load system is based on flight test data, which can accurately restore the performance and feedback of aircraft. The visual system is higher than the appraisal standard and provides a field of vision close to the real machine.