ChinaTech&SciChina’s 3D-Printed Mini Jet Engine Soars to 4,000m in Maiden Flight My NewsJuly 3, 202503 minsChina’s AECC flew its ultralight 3D-printed mini jet engine to 4,000 meters in Inner Mongolia, demonstrating reliable performance and a new era in aviation.Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Read More