This is what you want to know most about the success of the first flight of China large plane C919!

　　CCTV News:On May 5, the domestic large passenger plane C919 rushed into the sky at Shanghai Pudong Airport and successfully completed its first flight mission. The successful first flight of a large plane not only inspired the aviation industry, but also closely related to our lives.

　　On the afternoon of 5th, Shanghai Pudong International Airport, a streamlined large passenger plane painted in white, blue and green pulled into the runway and taxied like a quiet and proud Dapeng.

　　Jin Zhuanglong, the commander in chief, said: "Agree to fly!"

　　At about 14 o’clock, the plane accelerated and flew into the sky smoothly and neatly in a short time. There are five flight test crew members on board, and the cruising altitude is about 3000 meters.

　　C919 jumbo jet is the first real civil aviation jumbo in China after Yun -10, a new generation of trunk passenger aircraft in China, and a new generation of jumbo jet independently developed by China. After nine years of research, C919 has completely independent intellectual property rights.

　　△ On the 5th, the C919 passenger plane made its first flight. After landing at Shanghai Pudong International Airport, the crew of the first plane walked out of the cabin and waved to the guests.

　　Seven questions you want to know about C919.

　　① Why does C919 own China’s independent intellectual property rights?

　　For such a complex product as a large aircraft, the overall design is extremely important. Without the overall design, even if the world’s best engine, fuselage, flight control, telex and so on are combined, you can’t get a flying plane. Wu Guanghui, the chief designer of C919, said that C919 is a trunk aircraft designed independently by China, and it has completely independent intellectual property rights in terms of the overall design of the aircraft.

　　The outer "shells" such as nose, fuselage, tail and wing come from China’s Chengfei, Hongdu, Shen Fei and Xifei enterprises, while many other key parts come from foreign enterprises. It is reported that global procurement is a major feature of civil aircraft manufacturing, and suppliers of Boeing and Airbus also come from all over the world. However, a major mission of C919 is to promote the development of domestic civil aircraft industry chain, and it is believed that more and more parts will come from China enterprises.

　　② Why isn’t the ②C919 equipped with a domestic engine?

　　At present, China does not have the ability to produce engines suitable for civil large passenger aircraft, and the engines of international civil aircraft manufacturers are also purchased from suppliers.

　　At present, the international civil aviation engine manufacturers mainly include Rolls-Royce of Britain, GM and Pratt Whitney of the United States, Snecma of France, and IAE and CFMI with multinational cooperation.

　　Of course, it is best to use engines from China, but the development of civil aviation engine industry can only be driven by large aircraft. Without a big plane, there will be no demand, and there will be no platform. This is the relationship between the industry leader and the industrial chain.

　　③ How is the safety of ③C919?

　　Wu Guanghui said that the C919 large passenger plane is designed according to more advanced technical standards, adopts the most advanced power, avionics, flight control and other systems provided by world-class suppliers, and is designed and produced in full accordance with international airworthiness standards, so its safety is fully guaranteed.

　　In the end, whether the C919 aircraft is safe or not is not the decision of its manufacturer, China Commercial Aircraft Corporation, but the airworthiness certification of the Civil Aviation Administration of China. In other words, the flight mission of civil aviation can only be carried out if it conforms to all aspects of the test of aircraft by the Civil Aviation Administration of China, and the safety test is the most important.

　　④ Which airlines have the opportunity to sit in C919?

　　C919 has received 570 orders from 23 companies around the world.

　　At present, many airlines such as China Eastern Airlines, Air China, China Southern Airlines, Hainan Airlines, Sichuan Airlines, Hebei Airlines, Happiness Airlines, Germany Puren Airlines, Thailand Metropolitan Airlines, and many financial leasing companies such as Ping An International Financial Leasing, ICBC Financial Leasing and Bank of Communications Financial Leasing have purchased C919.

　　After the first flight is successful, C919 will be transferred to the airworthiness forensics stage. Airworthiness certification is the management and technical realization process to ensure that the aircraft meets the minimum acceptable safety standards (airworthiness standards) formulated according to public requirements: the aircraft must be designed according to airworthiness requirements; There must be a suitable system to ensure that the aircraft design meets the airworthiness requirements; The applicant must show the CAAC that its large passenger plane meets the airworthiness requirements by means of calculation, analysis, inspection and test. Only products that have passed airworthiness examination and verification and obtained airworthiness certificate can enter the market.

　　Within one year after the first flight of C919 passenger plane, Comac China and China Eastern Airlines will start negotiations on the supply and demand of five aircraft.

　　Although the first flight was successful, it is still a long way from commercial operation. It is understood that the first flight is not a commercial operation of carrying passengers, but a step required to obtain various qualifications. After the first flight of C919 is successful, it needs to complete all kinds of forensic tasks before mass production. According to industry insiders, it takes about 3 or 4 years for civil aircraft to obtain evidence for flight test, and it will not enter the commercialization stage until the evidence is obtained.

　　Liu Shaoyong, chairman of China Eastern Airlines Group, said: "The agreement between China and Europe and the United States on airworthiness forensics has opened up a situation for the successful forensics of the C919 aircraft in the United States and the European Aviation Administration. We look forward to the early success of the forensics of the C919 aircraft and the early delivery to us for commercial operation after the completion of various forensics."

　　⑦ How will ⑦C919 drive industrial development?

　　Jin Zhuanglong, Chairman and Party Secretary of China Commercial Aircraft Corporation, said that China’s civil aviation industry chain driven by C919 large passenger aircraft has great potential. With Shanghai as the leader, 22 provinces and cities including Shaanxi, Sichuan, Jiangxi, Liaoning and Jiangsu, more than 200 enterprises and nearly 200,000 people participated in the development and production of large passenger aircraft projects, forming an industrial chain, a value chain and a innovation chain. Promote the establishment of 16 joint ventures in avionics, flight control, power supply, fuel and landing gear, and upgrade the supporting energy level of China civil aircraft industry.

　　This has not only significantly improved the basic outlook of China’s civil aviation industry development, but also forged an industrial chain with great potential for China’s economic transformation and upgrading.

　　In the future, with the promotion of large passenger aircraft projects and the batch production of jet aircraft in China, this industrial chain will gradually exert great economic potential.