China's largest aircraft C919 is China's first in accordance with the latest international airworthiness standards, independent research and development of large aircraft, May 5, 2017 will be the first flight in Shanghai Pudong Airport.

However, history is not forgetting, is the "independent research and development design" behind those sweat and hardships, paved the current C919 "big plane road."

Recently, surging news (www.thepaper.cn) reporter learned from the Chinese business to understand this twists and turns of the dream trip.

Imitation stage: "handsome boy" transport 7 appear

In the field of civil aircraft manufacturing in China, a reference to imitation and mapping design, immediately reminiscent of known as "handsome boy" of the transport 7. In the social context at that time, the aviation industry through the imitation of production, already have a considerable scale, aircraft design team is growing. Fighters have been imitated to their own design, but large aircraft, especially the transport aircraft is still blank.

Run 7 to fill this gap.

According to the Soviet Union in the 20th century, 60 years of production-24B surveying and mapping design, due to "Cultural Revolution" during the quality of out of control, hastily installed, exposed a lot of problems, accounting for the entire flight test problem 70% -80%.

But the transport 7 eventually achieved success. As of the end of 1988, one after another production aircraft shipped 7 aircraft 56, flying in the 55 domestic routes, from 56 large cities, became the largest domestic flights on the fleet.

Self-development stage: Win 10 test success but eventually "dismount"

Yun 10 is China's own development of the first civilian passenger aircraft.

In 1969, Mao Zedong to Shanghai to inspect the work, asked Shanghai did not engage in aircraft? At that time, Shanghai proposed to build aircraft, and in 1970 formally proposed to the central Shanghai made aircraft requirements.

The aircraft is shipped 10, it is the United States Boeing 707-320C aircraft for reference, mainly according to the United States in 1970 Federal Aviation Regulations FAR25 Department of design.

September 26, 1980, transport 10 aircraft in Shanghai Grand Airport airport for the first successful flight test. Its successful development, so that China has its own design and manufacture of large aircraft complex technology, not only to fill the Chinese national industry can not make large aircraft before the blank, and make China to follow the United States, the Soviet Union, Britain, France, the fifth development Out of the 100-tonne country.

Unfortunately, the transport of 10 projects due to positioning and funding issues, the final "dismount."

International cooperation stage: "three steps" come to nothing

Transport 10 "dismount", China has developed a "three-step" strategic plan.

The first step is part of the manufacture and assembly of MD-80 / -90 series aircraft, provided by the US McDonnell Douglas technology to improve manufacturing capacity; the second step is to cooperate with foreign cooperation, the development of 100 aircraft, improve the design level; The third step is to design and manufacture their own 180-seat trunk aircraft. But by the fall of 1998, all these goals were lost.

McDonnell Douglas was merged with Boeing, MD-80 / -90 series aircraft to suspend Sino-US cooperation; Sino-German joint development of 70-seat MPC-75 aircraft, because the funds, Airbus to develop A319 aircraft and other reasons and failed ; AE-100 project is an important step in the overall development strategy of China Eastern Airlines, but since Airbus has decided to develop the A318 aircraft and is ready to give up the AE-100 project and express a clear speech during the Singapore Airshow, China decided to stop the AE-100 project, the AE-100 project of 10 billion yuan of special funds for other aspects of the AE-100 project ended.

Modification development stage: "new boat" to the market

The development of the 7-200A Aircraft is a very important improvement project for the transport of the 7th aircraft. The "new boat" 60 is a model for the market of 7-200A (improved in cockpit decoration).

According to the basic content set forth in the improved development project proposed by the February 1988 program review meeting and the agreement reached between the Ministry of Aviation Industry and the Civil Aviation Administration of the People's Republic of China on the technical status and basic data of the 7-200 development aircraft, 200A aircraft developed into the implementation of the main projects, including the former fuselage redesign, facelift PW-124A engine and 14SF propeller, the former landing gear optimization design, environmental control system to improve the design, redesign the power supply and power supply and distribution system, for Installed airborne equipment, air bag type deicing, fuel system changes, the use of smaller radar antenna, change the passenger boarding doors and so on.

Transport 7-200A aircraft in December 13, 1993 first flight success. Before the first flight to complete the earth before the ground to do the test 12, from June 1993 riveting to the first flight, only half a year. Transport 7-200A aircraft 0001 aircraft after the first flight, and soon completed the adjustment test flight. May 7, 1998, the airworthiness authorities formally approved the issuance of model certificate. May 18, 1998, in the Beijing People's Great Hall of Zhejiang Office held a ceremony, held a press conference, announced the transport of 7-200A aircraft can be put into operation routes.

The 7-200A aircraft was developed for 11 years.

Independent development of new stage: C919 is about to fly first

C919 and ARJ21 are the masterpieces of the development of China's large aircraft.

November 6, 2000, the National Defense Science and Technology Commission in Zhuhai during the air show released "China Civil Aircraft Development Report", announced that China will be in accordance with international airworthiness standards, the development of independent intellectual property rights of the new turbofan regional aircraft.

To June 2002, the State Council approved the "State Planning Commission on the approval of China Aviation Industry Group 1 new turbofan regional aircraft project proposal", the new regional aircraft project formal project.

ARJ21 is the first time in China in strict accordance with the international general aviation airworthiness regulations for the development and production, is currently the only application for aircraft carrier airworthiness standard model certification and access to the United States Federal Aviation Administration accepted the transport aircraft project.

It is entirely by the Chinese people to complete their overall design, system integration, assembly and airworthiness evidence. ARJ21 aircraft is also China's first export of European and American developed countries, civil turbines regional aircraft. Currently ARJ21 aircraft has delivered the first user to Chengdu Airline operations.

Large passenger aircraft code-named "COMAC919" (referred to as "C919"). C919 large passenger aircraft is China has its own intellectual property rights of 150 seats, single channel, high sub-speed, double hair, short-range commercial trunk aircraft. The basic type of mixed-level layout of 156, the overall economic layout of 168, high-density level layout for the 180.