Group 1 - The "Cuntian Shihou" aircraft, equipped with the "Jindouyun" engine, can achieve supersonic speeds of approximately Mach 4, allowing for travel distances of over 10,000 kilometers in under 3 hours [1][2] - The "Jindouyun 400" engine has completed flight tests by the end of 2024, demonstrating its performance in real flight conditions and providing reliable power support for the aircraft [2] - The "Jindouyun 400" engine features a modular design and 3D printing technology, enabling quick assembly and adaptation, with an upgraded version, "Jindouyun 400S," expected by the end of this year [2] Group 2 - The "Cuntian Shihou" aircraft is still in the development phase, with a projected first flight of the verification model in 2026, which will validate the overall design of the near-space supersonic aircraft [2] - The future commercial version of the aircraft, named "Dasheng," is expected to have around 30 seats and will be positioned as a business aircraft [2]