Comac gears up for C919 flutter tests The work on aircraft B-001A saw 22 parameters tested, focusing on the signal combinations that the aircraft structure will be subjected to, as well as the aircraft structure’s ability to damp vibrations.To get more c919 news news, you can visit shine news official website.
“The main purpose of this test is to verify the function and performance of the flutter/ASE (aeroelasticity) flight test, the excitation system, and the safety protection system, check the functions of the airborne test equipment, telemetry and real-time monitoring pictures, and initially grasp the modal characteristics and ASE characteristics of the aircraft structure,” says Comac. In addition, the ground testing familiarised the pilots with the flutter/ASE test equipment.The successful competition of airborne flutter/ASE tests will allow Comac to expand the aircraft’s flight envelope.In November, Comac achieved power-on for its third C919 test aircraft. It is expected to fly before year-end.
The first two test aircraft are undergoing flight tests at Xian, Shandong, and in Jiangxi province.Aircraft 102 was transferred from the Shandong test site to Jiangxi late last month. Comac says aircraft 101 and 102 are undergoing flight tests at Xian, Shandong and Jiangxi.The Chinese manufacturer is using six flight test aircraft for the narrowbody programme, and also has two ground test jets that are undergoing static and fatigue tests. It has secured 815 commitments for the CFM International Leap-1C-powered aircraft, with a target to achieve certification and enter into service in the 2020-2021 period.