ARJ21 is also a large domestic aircraft, why is it not as famous as C919?

It's not that ARJ21 doesn't have a reputation, but now it needs to advertise the C919. ARJ21 has been out for several years, and when it was launched, we did enough publicity and promotion for it. Now ARJ21 is the main model of our main domestic branch line, the promotion has been promoted, the order has been obtained, and its own customer group has been established, so there is no need to spend money to continue advertising.

The C919 is different, this is a new product and new aircraft, it has just been launched, and it does not belong to its own customer group, so it is necessary to advertise this aircraft to build momentum.

ARJ21 is our own first domestic aircraft, the design and manufacture of this aircraft and our military aircraft have a lot of commonality, the maximum take-off weight of 40 tons and our military ground transport 8 military aircraft is slightly lower, that is to say, ARJ21 can use our domestic aviation materials as fuselage materials, materials to solve the rest is not a problem. Therefore, ARJ21 is the first passenger aircraft that can be completely domestically produced, and it has also secured the first hegemon in China's regional transportation, and basically all domestic regional lines will eventually be owned by ARJ21.

The C919 is different, this passenger aircraft is the same as the Airbus A320 and Boeing 737 in positioning, and will grab the market for these two passenger aircraft. This is the first time that domestic products have a hard time with international giants, and we must definitely build up momentum for him and do a good job in the work of relatives and friends. This is conducive to the promotion of C919.

ARJ21 is a "fishing" learning project, which is a pathfinder project for the development of C919 "front station". The reason for choosing this top is that the ARJ21 does not directly conflict with the main products of Boeing and Airbus, is not sensitive to the West, and is very similar to the target C919 developed by China, so it is a small top eye big strategy project....It was also very successful. Nowadays, the West and the United States are alert and want to cut off the engine of the C919, which is normal.

Anyway, the "fish" that should be caught has also been caught, and the information that should be grasped has been touched to the end, Lao Mei wants to "wean", so let's go by myself!

I think the ARJ21 is very similar to McDouglas's MD-84, or it is also a model assembled by the United States after fooling my country's Yun-10. It is estimated that my country still has a thorough understanding of this model. The design of China's regional airliner is used to buy a similar design style column!

ARJ21 is not famous, practical is smart, as long as the technology is mature, in the face of the huge domestic aviation market, now there are more than 500 orders in hand, growing up, no one is worried about it. C919 large aircraft, to face the global flight and market sales, the same level of aircraft, is the best-selling model, 815 orders, not only including the domestic market, but also the international market, to really turn the order into reality, there is a lot of technology that needs to be worked on, so the degree of attention is also the highest. How to achieve the successful export of C919 is looking forward to it.

The degree of attention is not the same, and the natural fame also fluctuates. Soul Warrior Desert feels that our market positioning is accurate, and both models will usher in a bright future.

ARJ21 accelerates the maturity of the technology. As of March 2019, 12 aircraft have been delivered, and Chengdu Airlines has verified and improved its technical maturity through small batch trials, and if there are no problems, it will be delivered in large quantities, and we will improve its popularity with actual results. Since its delivery in 2017, this aircraft has been in actual operation for nearly two years, and no problems have been found.

Technology requires effort, and experience needs to be accumulated. In the name of the Xiangfeng, this is a regional jet that can stand shoulder to shoulder with Embraer and Canada's Bombardier, and it will get better and better with the huge civilian market as a guarantee.

C919: We're working hard enough. If the ARJ21 is a litmus test for our foray into the civil aircraft market, then the C919 is definitely the first of its kind. Boeing and Airbus started early, and we, as latecomers, have something to learn and learn from, for example, we can introduce Western avionics and related technologies, and meet our own large aircraft with an open mind.

All the technologies are top-notch, to ensure its advanced nature, domestic technology can not be realized for a while, the use of Western avionics, while practical while to localization, until the realization of all localization. The C919 is one such aircraft that has the courage to be tested by the market to fully grasp and promote advanced technology. Naturally, they will become more and more famous.

The ARJ21 is not a domestic large aircraft, but a domestic regional airliner, which is mainly used for short-distance transportation missions. The passenger capacity is also about 100 people, which cannot be compared with the C919 domestic large aircraft.

Although the magnitude of the C919 still does not meet the standards of the so-called large aircraft, in the field of passenger aircraft, the C919 is a medium-haul trunk airliner. It can be regarded as a large aircraft, with a maximum capacity of 190 passengers, and in addition to its wing-hanging engine layout, it is more in line with the psychological expectations of the large aircraft of the Chinese people, and the range is much larger than that of ARJ21. It is a classic medium-haul trunk airliner, although its maximum take-off weight is just over 77 tons.

But soon we have a real sense of large passenger aircraft, although the current C929 has entered the research and development stage, but there is no specific news, but the basic data is roughly determined, C929 maximum take-off weight of more than 200 tons, the maximum passenger capacity of 300 to 350 people. It's a big plane.

Because this aircraft should not belong to civil aircraft, it is not famous because it is not used by many people.

The engine of the ARJ21 aircraft is not domestic. The engine of the ARJ21 aircraft is a GE General Electric CF34 - 10A regional jet engine.

The so-called independent intellectual property rights of ARJ21 refer to the independent design, development and assembly of the aircraft by COMAC.

The ARJ21 project adopts the international general "main manufacturer and first business" model, introduces a large number of international mature advanced technology and airborne systems, and the engine, avionics, power supply and other systems are all purchased globally through competitive bidding.

GE GE's CF34-10A regional jet engines, Rockwell Collins avionics systems and Honeywell's main flight control system were selected. In addition, many system components and products are manufactured in China.

By definition, the C919 is a mainline airliner and the ARJ21 is a regional airliner.

From the perspective of aerodynamic layout: C919 is the conventional layout of the double-wing engine, and ARJ21 is the conventional layout of the high T-shaped tail wing of the double-tail crane engine.

From the perspective of passenger capacity: the maximum passenger capacity of C919 is 190 people, the maximum passenger capacity of ARJ21-700 certification is 90 people, and the maximum passenger capacity of ARJ21-900 is 105 people.

From the perspective of range: the C919 basic model announced the design range of 4075km, and the extended range design range of 5555km; The ARJ21-700 basic model has a maximum range of 1900km under commercial load, 2330km under standard commercial load, and 4200km under zero commercial load; Chi Fang shouted ARJ21-700 extended range design range of 3300km under the maximum commercial load, 3672km under the standard commercial load, and 4250km under zero commercial load (the data comes from COMAC, all data include 200nm transfer fuel and 45min waiting fuel, all data are obtained under the international standard atmosphere and do not consider the conditions of the air wind in the yard).

In terms of speed: the C919 is designed to cruise at Mach, and the ARJ21 has a cruise speed at Mach.

Only six ARJ21s were produced because they did not have a production license under the CAAC regulations. Of the six ARJ21s produced, two were delivered to Chengdu Airlines, and the other four were prototypes for testing.

It takes a lot of time and verification for a newly developed aircraft to go from its first flight to its official operation, with the aim of discovering the defects and deficiencies of the new aircraft through a series of tests and experiments, so as to make improvements to the new aircraft. That's why it's hard to see other airlines using ARJ21 at airports.

The plane lagged behind.

If it was an ordinary company, it would have gone bankrupt a long time ago.

Even if you sell 500 units, you won't be able to do it.

Of course, it is impossible to sell so much, this aircraft has long been behind.

1.The development process is different: ARJ21 is more than 20 years of historical accumulation and technical precipitation independently developed by China, while C919 is a product of further improvement and improvement on the basis of ARJ21.

2.The ARJ21 is developed and produced by COMAC, while the C919 is jointly developed by COMAC, a joint venture between COMAC and Aviation Industry Corporation of China.

3.The aircraft types are different: the ARJ21 is a 50- to 90-seat Songhao regional airliner, while the C919 is a 150-seat short- and medium-haul mainline airliner.

4.Different technical content and competitiveness: Although the ARJ21 also adopts some new technologies, the application technology of C919 is more cutting-edge and advanced, and it has stronger international competitiveness.

Germany's first internal combustion engine was still a two-stroke gas internal combustion engine imported from France, why don't you ask why the Germans at that time bought the French gas internal combustion engine first instead of developing their own four-stroke internal combustion engine out of thin air?

Let's be honest, China's engines aren't as bad as you think, okay? Isn't the new J-20 just a self-produced engine?

The main reason for not using domestic engines is that the use of European and American engines can easily obtain European and American airworthiness certificates, so that the aircraft can be sold abroad, and you can learn the manufacturing technology of large channel ratio engines, because domestic aircraft are mainly fighter jets, and the use of large thrust small channel ratio aircraft, our country has no experience in developing large aircraft engines for the time being, and it can save the research and development time of the aircraft directly and is conducive to seizing the market opportunity, but I believe that after a few years, Our domestically produced large aircraft can also use domestically produced engines.

Supplement: 052 uses a Ukrainian gas turbine UGT-25000 (DA-80), and a domestic QC280 is used in the later period

The J-10A uses the Russian AL31, and the J-10 B uses the domestically produced Taihang.

The 99 tank is also not a German engine, because high-end military engines will not be exported to our country by foreign countries, so everything has to rely on itself, and civilian engines depend on the situation.

Because there isn't. In order for civil aircraft to be marketable, it must have good safety, reliability and economy, and the engine of Xingneng is the key, and our own engine cannot be compared with the international advanced engine.

It's normal, there is no big hair to match it in China. Besides, there are only a few companies in the world that can produce Daihatsu. In addition, it is normal in the aviation world to rent someone else's engine for your own aircraft.

Because the engine of the aircraft has always been the weakness of the Chinese industry, even most of the Air Force fighters use Russian engines.

Because there are no domestic engines.

Because China's engine technology is still very backward, it cannot be matched with others.

The performance of the domestic engine is not good, our engine technology is not bad, it is poor, and the engine of a low-end car is also okay, and the engine of the high-end domestic car is a Japanese engine

Type 99 tank German engine J-10 Russian engine 052 destroyer German engine Take a look at the main domestic defense ** which has a domestic engine

The design to carry passengers is different, the 919 is a mainline airliner, and the ARJ21 is a regional airliner.