From floating in the dock of the large cruise ship "Huacheng" to the large aircraft "Kunlong" airworthiness evidence collection; from the debut of the new generation of cargo spacecraft "Qingzhou" to the delivery of the upgraded large-scale breeding ship "Guoxin 1"... Recently, domestic large-scale domestic sea and air equipment has continued to be "new", becoming a powerful witness to the leap of my country's scientific and technological strength and comprehensive national strength.

  On April 28, the second large domestic cruise ship "Ida Huacheng" successfully achieved a milestone node of floating in the dock at Shanghai Waigaoqiao Shipbuilding Co., Ltd., a subsidiary of China Shipbuilding Group. Also embarking on the "wave-breaking" journey is the world's first 150,000-ton smart fishery large-scale breeding vessel "Guoxin No. 1 2-1". The ship was recently delivered and operated at the Beihai Shipyard of China Shipbuilding Group. At the same time, domestic aerospace equipment is "ride the wind": the new generation of space "courier" light boat cargo spacecraft officially unveiled on "China Space Day"; the domestic large amphibious aircraft AG600 "Kunlong" has also recently obtained a market "access permit".

  Compared with previous generation products, these sea and air equipment have more "hard core" technical strength. Compared with the first ship, the construction efficiency and floating integrity have been greatly improved, marking an important breakthrough in China's shipbuilding industry's comprehensive construction of lean and efficient large-scale cruise design and construction capabilities. "Qingzhou" is a "small guy" with "big wisdom" - this "low-cost, high-reliability, high-strain, and high-intelligence" light and fast spacecraft has the characteristics of integrated single-cabin configuration design, flexible configuration of large-capacity cold chain transportation, intelligent cargo management system, and diversified transportation capabilities. Compared with the first generation of Guoxin No. 1, the new generation of ship-type aquaculture water bodies increased by 20%, and the energy consumption decreased by at least 20%. More than 160 technological breakthroughs and optimization innovations have been achieved in the fields of functional layout, breeding systems, new energy utilization, and information integration. As the civilian amphibious aircraft with the largest take-off weight in the world, the AG600 has the advantages of good low-altitude and low-speed performance, high fire extinguishing and rescue efficiency, stable surface flight take-off and landing, wide field of mission execution, leading and independent technology, and comprehensive domestic supporting facilities, filling the gap in my country's aviation industry in this field.

  Industry experts pointed out that as the core of high-end manufacturing, large-scale sea and air equipment is an important area for implementing the innovation-driven development strategy and an important support for building a manufacturing power. The level of development in this field often determines the competitiveness of the entire industrial chain.

  "China has fully broken through the key core technologies of large amphibious aircraft development through independent development of AG600 aircraft, fully built a proprietary technology system for large amphibious aircraft, and promoted independent innovation, independent research and development and independent guarantees of the civil aircraft industry chain and supply chain." Huang Lingcai, chief designer of the AG600 series, said that AG600 has achieved 100% domestically produced independent supporting facilities for the entire aircraft body structure, engine and key systems.

  "At present, the resilience of the manufacturing industry has been further enhanced in an externally unfavorable environment, and the connection between manufacturing and technological innovation is closer." Zhu Minghao, executive director of the China High-end Manufacturing Research Center of Beijing Jiaotong University, said that on the one hand, the effective supply of innovation has been continuously enhanced, supporting a number of products with short-sized necks in the equipment field to successfully break through, and some key areas have formed a relatively complete industrial chain; on the other hand, new products and new achievements in manufacturing continue to emerge, and new scenarios and new business formats of intelligent manufacturing have been integrated and integrated, which not only promotes the improvement of major equipment production efficiency, but also supports the application and iteration of new technologies.

  Data shows that in the first quarter, nearly 70% of my country's key products produced in key products achieved growth. From the perspective of sub-industry, the development of land, sea, air and electricity equipment continues to improve, and the intelligent equipment industry is developing rapidly. In the shipbuilding industry, key shipbuilding enterprises are basically at full capacity.

  Industry experts believe that my country's equipment industry is achieving high-quality development through intelligence, greening and integration, and will open up greater imagination space in the future. For example, the cruise industry is known as the "golden industry floating on the sea", and cruise design and construction can bring a 1:14 boost to ship repair, home port, retail, finance and other related industrial chains; large-scale smart fishery breeding vessels will comprehensively promote the coordinated development of supporting industrial chains such as feed processing, cold chain logistics, and deep processing of aquatic products. As a milestone in the commercialization of manned space flight, Qingzhou cargo spacecraft has introduced the concepts and technical means of commercial space, promoting the rapid iteration and application of new ideas, new devices and new materials in the aerospace field. The AG600 will become the "leader" of domestic aviation emergency rescue equipment system, which will have a huge driving effect on materials and components, avionics systems, airworthiness standard systems and other fields. (Reporter Wu Wei)

[Editor in charge: Zhou Jingjie]