Storyline: China debuts first wind tunnel for low-altitude aircraft aerodynamic research [Voice_over] China's first hybrid wind tunnel for low-altitude aircraft testing is now up and running in the southern city of Guangzhou. Developed by the Guangdong Aerospace Research Academy, the wind tunnel generates precisely controlled airflow to simulate real-world flight conditions, allowing researchers to conduct in-depth aerodynamic analysis. It merges traditional wind tunnel capabilities with drone windshaper technology, bridging a critical infrastructure gap that had previously stalled the drone testing process. [Sound_bite] Shang Zuming, director, wind tunnel testing platform, Guangdong Aerospace Research Academy: "There were companies who waited for over a year for a testing slot in Harbin. Now, with the wind tunnel launched in the Greater Bay Area, the entire process for wind tunnel experiments, from coordination to testing, takes just three to four months." [Voice_over] Researchers say compared to outdoor testing, wind tunnel experiments are faster and more cost-effective. [Restrictions : No access Chinese mainland]