[Korolev talks about military column No. 189] Whether the world's top fifth-generation fighter jets and aviation engines can be developed is a symbol of a country's aviation industry level. In addition, whether jet passenger aircraft can be independently developed and manufacture

[Korolev talks about military column No. 189] Whether the world's top fifth-generation fighter jets and aviation engines can be developed is a symbol of the level of a country's aviation industry. In addition, whether jet passenger aircraft can be independently developed and manufactured is also a touchstone to test whether a country's aviation industry is advanced.

On November 12, 2015, Japan's first domestic jetliner after the war, the MRJ regional jetliner made its first flight at Nagoya Airport, Aichi Prefecture, Japan. The jet regional passenger plane was produced at Mitsubishi Heavy Industries' assembly plant in Nagoya, which was produced at the same location by Mitsubishi Corporation in the same location. Mitsubishi Aircraft Corporation of Japan has a relatively strong history of development in the aviation industry. It was famous for producing famous Zero fighter jets in the 1930s. After World War II, the Mitsubishi chaebol was liquidated due to war crimes, but it also retained a small number of aviation industry departments.

[Korolev talks about military column Issue 189] MRJ passenger plane (Mitsubishi Regional Jet) is a jet regional passenger plane with less than 100 seats. It is the first large jet regional passenger plane developed by Japan after its defeat. The aircraft was "led by Mitsubishi Heavy Industries, Japan under the guidance of Boeing. Japanese believe that MRJ adopts telex control, and the cockpit of the advanced display system is designed by Boeing. 58% of the metal fuselage structure is aluminum alloy, 28% is carbon fiber, and the aircraft wings and tail wings are mainly carbon fiber. MRJ has advanced design concepts and excellent aerodynamic performance, which is no less than the latest jet aircraft of competitors such as Brazil and Canada. Compared with China's ARJ, MRJ is more than 10 years ahead in aerodynamics.

The design plan was announced in 2004, and the R&D was officially launched in March 2008. The first assembly was completed in May 2004, and the jet engine interceptor was completed in June. On October 18, 2014, MRJ held the unveiling ceremony of the first prototype, and conducted its first test flight on November 12, 2015. So far, Mitsubishi Heavy Industries has received orders for 407 complete machines. Japanese MRJ passenger plane started its first flight ten years after it announced its plan, and the speed is relatively fast. The reason why was developed smoothly is on the one hand because the engine directly comes from the mature product of Pratt & Whitney, Canada, which was originally planned to be developed for the Boeing 787, but was not selected by Boeing. On the other hand, Mitsubishi Heavy Works is an upstream supplier of Boeing 787, responsible for up to 35% of parts manufacturing and has accumulated a lot of experience in the field of aviation manufacturing. Japan plans to deliver the entire aircraft in 2017 after two years of test flights. It strives to surpass the Chinese ARJ regional jet aircraft that has been tested for seven years.

[Korolev talks about military column No. 189] However, China's aviation industry, which is committed to forging ahead and developing the fifth-generation fighter jet J-20 and J-31, the domestic large transport aircraft Y-20, and the domestic large jet passenger aircraft C919, will the Japanese be proud of it?

of course not!

On November 29, 2015, China's first medium- and short-range regional aircraft developed in accordance with international standards and with independent intellectual property rights was officially delivered to Chengdu Airlines.

可~~. . . A loud slap in the face of the Japanese! The first delivery of

ARJ21-700 is the first aircraft of . marks that my country has completed the entire process of design, trial production, test flight, evidence collection, production and delivery of jet regional passenger aircraft, and has the R&D capabilities and airworthiness certification capabilities of more advanced jet passenger aircraft.

[Korolev talks about military column Issue 189] Not only that, China's ARJ21 regional jetliner also surpassed Japan's MRJ passenger aircraft in terms of performance, cost and safety. The price of the entire machine single rack of MRJ is about US$42 million, while the reference unit price of China's ARJ21 is only US$29 million, which is only 70% of the unit price of Japanese MRJ. In addition, AVIC Aircraft Company also undertakes more than 85% of the parts manufacturing, which directly reduces the cost of the whole machine. is the type 6 safety standard used by ARJ21-700 aircraft. It is the most stringent standard for international aircraft airworthiness certification. This means that the average probability of a catastrophic event caused by a system failure within 1 hour of flight is 10 to the power of 9, which means "extremely impossible".

In addition, from its first flight in 2008 to December 2014, the ARJ21-700 aircraft had a total of 2,942 safe test flights, with a total flight time of 5,258 flight hours. It took 6 years from test flight to obtaining a model certificate, becoming the world's longest test flight time and a total test flight hours, surpassing the Boeing 787 in the United States.

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