In January 2025, Suzhou Changfeng Instrument Co., Ltd. received a letter of thanks from LiaoNing General Aviation Research Institute. The letter was signed by Yang Fengtian, an academician of the Chinese Academy of Engineering and the chief expert of LiaoNing General Aviation Research Institute, expressing sincere gratitude for our company's active completion of relevant test tasks for the type certification flight inspection of RX4E four - seat electric aircraft of the research institute.

On December 29, 2024, the RX4E Ruixiang four-seat electric aircraft developed by the aviation research institute successfully obtained the Type Certificate (TC) issued by the Civil Aviation Administration of China, becoming the world's first normal - category electric aircraft to obtain this certificate. The RX4E aircraft uses our company's CF4000B integrated display. During the type certification process, our company actively responded to and carried out verification work. In accordance with the requirements of DO-160D, it completed 12 test verifications including 7 electromagnetic compatibility tests and 5 environmental tests. Among the subsystems and sub - tasks of the RX4E aircraft, it was the first to complete the test tasks.