What are the four stages of China s aviation development process?

From 1949 to 1978, the initial period. 1978-1987, adjustment period. 1987-2002, forward period. 2003-present, development period.

In March 2002, China** reorganized China's civil aviation industry again. On 2 October 2004, at the 35th ICAO Assembly, China was elected for the first time as a Category 1 member of the ICAO Council by a large majority. In 2008, there were 152 navigable airports in China's mainland, with a passenger throughput of 100 million person-times and a cargo and mail throughput of 8.83 million tons.

Introduction Capital Airport is China's first modern airport and the largest air traffic hub, large international airport, located in the eastern suburbs of Beijing, more than 20 kilometers away from the center of Beijing, the airport equipment are designed, manufactured and installed by China, the architectural design of the terminal building is rich in national characteristics, all using domestic materials; It can command 70 aircraft takeoffs and landings per hour, and the passenger throughput can reach 1,500 passengers per hour.

Other important civil aviation airports in China include Shanghai, Guangzhou, Kunming, Urumqi, Dalian, Xiamen, etc.

China's achievements in the aerospace industry include:

1. After more than 50 years of entrepreneurial development, under the correct decision-making and leadership of the aerospace industry, the aerospace industry has gone through several stages such as the development of missiles, carrier rockets, artificial satellites, and manned spaceflight, and has now formed a system and a scale. In June 2017, China's hard X-ray modulation telescope flew into space, which can observe explosive objects such as black holes, neutron stars and gamma-ray bursts.

Facing the future, the Chinese will never stop asking questions about the "mystery of the starry sky". In the next five years, China plans to develop and launch five new scientific satellites; The scientific exploration based on the characteristics of X-ray properties, high-energy electrons and gamma-ray energy and spatial distribution will be further deepened, and China is expected to make new major breakthroughs in space science exploration.

2. In terms of satellites, our country already has seven satellite series: communications, remote sensing, resources, navigation and positioning, meteorology, scientific experiments, and oceans, and China is the fifth country in the world to send satellites into space, the third country to master satellite technology, and the fifth country to independently develop and launch geostationary orbit communication satellites.

3. In terms of launch vehicles, as of 2017, China has a total of 12 different types of Long March launch vehicles, with the carrying capacity of tons of low-earth orbit and tons of synchronous transfer orbit.

4. In the field of TT&C communications, an aerospace TT&C network covering the country's mainland, the Pacific Ocean and Africa has been established, which basically meets the TT&C needs of space activities.

5. In terms of ground and application systems, satellite ground and application systems have been built, including the China Remote Sensing Satellite Ground Station, the National Satellite Meteorological Center, the National Satellite Ocean Application Center, and the China Resources Satellite Application Center.

Long March series launch vehicles.

The Long March series of launch vehicles is a space launch vehicle developed by China itself. The Long March carrier rocket started in the 60s of the 20th century, and on April 24, 1970, the "Long March-1" carrier rocket successfully launched the "Dongfanghong-1" satellite for the first time.

The Long March rocket has a total of 17 models of 4 generations, both retired and active. Among them, five models, Long March 1, Long March 2E, Long March 3 and Long March 4A, have been decommissioned;

There are 12 models in service, including LM-2C, LM-2D, LM-2F, LM-3A, LM-3B, LM-3C, LM-4B, LM-4C, LM-5, LM-6, LM-7 and LM-11. In addition, four models of Long March 5B, Long March 6A, Long March 7A and Long March 8 are under development, and two models of Long March 11A and Long March 9 are under demonstration.

The vigorous development of China's aviation industry began after the founding of the People's Republic of China.

In the 60s of the last century, China's aviation industry was able to provide the air force and navy with military technical equipment to meet some of the needs of the civil aviation industry and lay a solid foundation for the development of China's aerospace industry. China's aerospace industry began in the mid-50s of the last century, and in 1956, China formulated a 12-year long-term plan for scientific development, listing rocket and jet technology as key development projects.

In the same year, the first missile and rocket research institute was established, and in 1958, the launch of artificial earth satellites was included in the scientific plan of the Guochang Najia, and an institution was set up to carry out space physics research and the development of sounding rockets, and to carry out academic activities and preparatory work for interstellar navigation and experimental equipment. China's aerospace industry experienced various economic and technical difficulties at the beginning of its establishment, and after arduous struggle, finally successfully launched the first sounding test rocket in February 1960.

Establishment of an aircraft factory

On April 23, 1951, the National Aviation Administration decided to establish an aircraft factory in Nanchang. On May 13, the first batch of builders arrived in Nanchang and began work on the former site of the "Kuomintang Second Aircraft Factory and Aviation Research Institute" jointly built by the Kuomintang ** and Italy in 1934. At that time, there was only a 1,500-meter gravel runway, 1 workshop, 7 old machine sheds, and more than 30 old machine tools.

After the efforts of the first generation of builders, the factory began to repair the planes transferred from the Korean battlefield in just 148 days.

On April 1, 1954, the State Aviation Industry Administration approved the Nanchang Aircraft Factory to produce Yaks in batches in advance In July, the Nanchang Factory successfully copied the first Yak-18 trainer aircraft, named the first Yak-18 trainer aircraft, named the first flight of the Chujiao-5 at 5:15 p.m. on July 3, the first flight of the Chujiao-5 was successful.