China's newest continuous transonic wind tunnel FL-62 in 60 seconds pic.twitter.com/b0SiFeFpPz— CGTN (@CGTNOfficial) October 5, 2021
A wind tunnel is a large piece of equipment that creates a simulated air environment in a cave-like facility to test the aerodynamics of aircraft. Most of China's active-duty fighter jets have been tested in a wind tunnel.
The difficulty of building an FL-62 is no less than developing a stealth fighter jet. It took hundreds of Chinese researchers years to develop an 80,000-kilowatt compressor, the main power source of the FL-62 wind tunnel.
The FL-62 will be used in the testing and design of China's next-generation fighter jets, and is a strategic component of China's aviation industry.