At the celebration of the 100th anniversary of the founding of the Communist Party of China, China's self-developed 6-type 71 military aircraft formed four air echelons to guard the party flag, hang celebration slogans, fly over Tiananmen Square, pay the highest respect and express the deepest wishes to the Centennial birthday of the great Communist Party of China. As China's first fourth generation stealth fighter in service, 15 j-20 fighter formations appeared in the largest scale for the first time. Engines roar, fighter planes roar, and the air honor guard holds its head high, demonstrating the new air combat capability and strong strength of the national defense forces of the "20th era". Transport 20 large transport aircraft The aviation industry has always firmly fulfilled the primary responsibility of strengthening the army, closely followed the pace of national strategy, continued to explore and innovate, aimed at cutting-edge science and technology, developed a generation and pre researched a generation on the basis of independent research, and embarked on an innovative road of forging ahead. In particular, the "20 family" represented by j-20 stealth fighter, yun-20 large transport aircraft, zhi-20 tactical general-purpose helicopter, fc-31 fighter and attack 11 UAV was born in the air, which not only presented the proud achievements of China's aviation equipment to the world, but also marked the new China's aviation industry under the leadership of the party in the past 70 years, It has achieved a historic leap from tracking and imitation to independent innovation in aviation science and technology R & D. Main battle equipment has entered the "20th era" On July 6, 2016, China's first self-developed large multi-purpose transport aircraft, Yun 20, was officially put into service, marking that China really has its own large aircraft, and China has successfully ranked among the few countries in the world that can independently develop 200 ton large aircraft. From the formal establishment of the project in 2007, the successful first flight in January 2013, the public appearance at the China Air Show in November 2014, to the formal loading in July 2016, Yun 20 aircraft has embarked on a successful road of independent innovation and research and development of large aircraft in China, successfully realized the first flight in only about half of the time of similar foreign aircraft, and created a new record for the development and delivery of similar aircraft in the world. The delivery of Yun 20 marks the official entry of China's aviation industry into the "20th era", and also opens the curtain of the "20th era" of aviation main battle equipment of the people's army. After Yun 20, the j-20 fighter became the second member of the "20 family" officially announced. On the afternoon of September 28, 2017, the Ministry of national defense held a regular press conference. In response to a reporter's question, senior colonel Wu Qian, director of the information bureau and spokesman of the Ministry of national defense, said that the j-20, a fourth generation stealth fighter independently developed by China, has been assembled, and the test flight is progressing smoothly as planned. At the military parade celebrating the 90th anniversary of the founding of the Chinese people's Liberation Army on July 30, 2017, three Chinese air force j-20 formed an arrow formation, which was also the first time that the aircraft was displayed in a combat posture in front of the world. On February 9, 2018, the Chinese Air Force announced that the j-20 began to Train Air Force combat units, taking an important step towards fully forming combat capability. In 2019, j-20 appeared at the military parade marking the 70th anniversary of the founding of new China, formed a fighter echelon with j-16 and j-10c fighters, and comprehensively demonstrated our air control equipment system of "fourth generation aircraft as the fist and third generation aircraft as the main body". Its performance indicators have reached the world advanced level, and has more powerful air control and air defense capabilities, which can effectively counter the same type of equipment of strong enemies around us, It is an important support for safeguarding national sovereignty. As the last model of the "20 family" to appear in public, zhi20 tactical general purpose helicopter flew over Tiananmen Square at the military parade for the 70th anniversary of the founding of new China. A few days later, it once again came into public view in the form of flight performance and static exhibition at the opening ceremony of the Fifth China Tianjin International helicopter Expo. Its appearance has further enriched the pedigree of helicopters in China and promoted the perfection of helicopter system. The "20th era" is not just an era Yang Wei, academician of the Chinese Academy of Sciences and chief engineer of j-20, once said at the 12th China air show that j-20 is not the code of a model, but a synonym for the development achievements of China's aviation industry. Similarly, the "20th era" is not only a code name of an era, but also a byword for the aviation industry of new China for 70 years. From the repair of aircraft parts, to the introduction of production and imitation, to independent research and leapfrog development, it has created one after another belonging to the miracle of Chinese people's aviation. The successful development of Yun 20 and the formal installation of the air force indicate that China has successfully ranked among the few countries in the world that can independently develop 200 ton mainframes. It is an important symbol of the overall improvement of China's scientific and technological innovation ability and the overall industrial level. It is of great strategic significance to the national economic construction, national defense construction, driving the national scientific and technological progress and industrial transformation and upgrading. In the past ten years, from its first flight to its first public appearance at the China air show, from shining the sword Zhu rihe to equipping combat troops, from forming combat effectiveness to flying over Tiananmen Square to accept the review of the motherland and the people, the j-20 interprets the original intention and mission of the airmen "serving the country and strengthening the country by aviation" as a big country and heavy weapon. By breaking through the R & D concept, leaping over the R & D capability and innovating the R & D means, the j-20 has been successfully developed and equipped the troops, realizing the engineering goal of "building a new generation of aircraft, leading technological development, innovating the R & D system and building an excellent team", and realizing the leap from the third generation to the fourth generation in the R & D capability of China's aviation industry and the construction of aviation weapons and equipment. With ten years of hard work and ten years of progress, aviation people have turned the impossible into possible, making independent innovation the spiritual symbol of the leap era of China's aviation industry. "20 families" set out for a dream and became strong for war After the j-20 fighters were installed in the Air Force combat force, the flight talents grew steadily, and the practical training was gradually carried out. They jointly carried out air combat training under the actual combat background with j-16, j-10c and other multi-type fighters, played an important role in the air force system confrontation exercise, and provided strong support for the leap of the air force's new combat capability. In May 2018, three months after the air force announced the j-20 platoon combat force, the j-20 carried out practical military training in the sea direction for the first time to further improve the air force's comprehensive combat capability. In August 2021, in the "western · joint-2021" exercise, j-20 appeared together with j-16, J-11, J-H 7a, H-6, yun-20, zhi-10 and air police 500 early warning aircraft. This is also the first joint exercise participated by j-20. Since the beginning of COVID-19, Yun 20 has been carrying out urgent transportation tasks both at home and abroad. In the last ten days of August 2020, yun20 will complete the altitude reloading airdrop for the first time in the actual combat training; On February 19, 2021, Yun 20 flew to the plateau to escort the remains of martyrs guarding the border of the people's Liberation Army home; At 9:22 on June 17, 2021, China's Shenzhou 12 manned spacecraft was launched, opening the road to the construction of China's space station, and Shenzhou 12 is also the first manned spacecraft sent from Yun 20 to Jiuquan launch base; On September 10, 2021, Yun 20 sent the director department of Chinese Participating troops participating in the "peace mission - 2021" joint anti-terrorism military exercise of SCO member states to the exercise area; On the morning of September 2, 2021, Yun 20 escorted the remains of the eighth batch of Chinese people's volunteers in South Korea from South Korea to the embrace of the motherland. Today, the fourth generation multi-purpose export fighter fc-31, developed to meet the needs of the future battlefield environment, made its debut at the 2014 China air show; China's self-developed unmanned combat aircraft attack-11 with high stealth, strong penetration and precision attack capabilities made its debut at the National Day parade on the 70th anniversary of the founding of new China... With the appearance of "new members" of the family, the "20th era" is constantly developing and becoming a new "keyword" of the national defense force. (Tang and Song dynasties) (outlook new era)