Core Viewpoint - The second Low Altitude Aircraft Innovation Materials and Intelligent Manufacturing Industry Summit was held in Shanghai, focusing on the innovation paths and manufacturing technology upgrades in the low-altitude aircraft industry, particularly eVTOLs (electric Vertical Take-Off and Landing aircraft) [1][7] Group 1: eVTOL Technology and Development - Liu Shiyi, founder and CTO of Yufeng Future, emphasized the need for a balance between high safety and economic efficiency for eVTOLs to achieve large-scale low-altitude travel [1][6] - The mainstream technical paths for vertical take-off fixed-wing eVTOLs are composite wings and tilt-rotors, with the composite wing offering advantages in mechanical complexity, cruising efficiency, and speed [3][5] - Yufeng Future's 2-ton manned eVTOL, utilizing a composite wing design, completed its first flight in October 2023 and is set to receive airworthiness certification from the Civil Aviation Administration of China in January 2024 [3][5] Group 2: Technical Advantages of Composite Wing - The M1 model employs oil cooling technology and positioning stop blades to reduce drag, achieving a 90% reduction in blade resistance [5][6] - Compared to tilt-rotor technology, the composite wing shows a 10% improvement in cruising efficiency, a 3% increase in electric drive efficiency, a 30% reduction in rotor-related weight, and an approximate 6% increase in total range [6] - The composite wing design simplifies mechanical complexity, enhances system reliability, and improves rotor explosion resistance, making it suitable for high-frequency, routine low-altitude travel [5][6] Group 3: Industry Outlook and Market Potential - The low-altitude economy is a strategic emerging industry in China, with predictions of market scale reaching trillions, supported by over 10,000 enterprises collaborating in four major sectors [7] - eVTOLs are positioned as a new transportation solution for urban air mobility, representing a hot new sector in global aviation [7] - Liu Shiyi highlighted the importance of collaboration across the industry chain to achieve commercial success and ensure safety and cost-effectiveness for widespread market acceptance [7]