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Chapter 1315 TRJ-900 regional trunk airliner

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    Yes, when the Air Force and the headquarters found out that the funds were in place, China took off with amazing efficiency. They didn¡¯t say it but they were very happy in their hearts.

    You must know that the cost is not only money but also time. In the end, the time cost is much higher than money.

    This is why some big guys often say that "problems that can be solved with money are not problems."

    For the Air Force and the headquarters, the cost of time is much higher than the money in hand. After all, domestic economic development waits for no one, not to mention that as the best destination for industrial transfer in developed countries such as Europe and the United States, China will inevitably usher in the future.  A period of rapid economic growth.

    Especially after joining the World Trade Organization has become a high-probability event, this expectation has become increasingly obvious.

    ¡° If we want to protect the hard-won economic development results and maintain domestic security and stability, it will be difficult for the military to ensure its independence if it does not have the means to solve the current severe security problems.

    Because of this, the Air Force and the headquarters are very eager to obtain the target indication and command and control system as soon as possible, so as to organically integrate the combat forces of the entire Air Force and realize the vision of air and space integration, both offense and defense.

    China Tengfei understands the appeals of the Air Force and the headquarters. Because of this, China Tengfei does not go above and beyond its own technical level in building a target instruction and command and control system. It is something that is very high-end in the eyes of the outside world.  Most architectures use mature technologies, and even reduce technical requirements in some aspects, leaving some shortcomings.

    For example, the Y-33 early warning aircraft uses a balance beam system.

    Although the trj-500 radar warning modified using the MiG-31 airborne radar is several levels better, it can be considered as a true early warning aircraft.

    But compared with the E-2C "Eagle Eye" carrier-based early warning aircraft of the same level, there is still a big gap in independent operations between the Y-33 early warning aircraft.

    At the very least, the e-2c "Eagle Eye" carrier-based early warning aircraft can be separated from ground guidance and independently command batches of fighter aircraft in the air to conduct air defense interceptions and ground and sea attacks.

    Although the Y-33 early warning aircraft can also do this, it is much worse than the E-2c "Eagle Eye" carrier-based early warning aircraft in terms of the number of guidance and command batches and the number of incoming targets. That's it. The key is  The transmission efficiency of the ZBF-18 data link developed by China Ascendas United Electronic Technology Research Institute on the Y-33 early warning aircraft is not high.

    No way, this system, which was born out of the satellite-to-satellite data transmission in the "Skylink" project, did not have high efficiency in its original design requirements.

    After all, the transmission between satellites is just simple position information and adjustment instructions, which only takes up to 300kb.

    But when it comes to early warning aircraft, they often have to process hundreds of batches of data, track more than a dozen targets with the greatest threat, and need to maintain close contact with fighters and the rear, which leads to a surge in transmission volume.

    If the Y-33 early warning aircraft is built according to the most ideal plan, its performance should at least be at the same level as the e-2c "Eagle Eye" carrier-based early warning aircraft. The problem is that the e-2c "Eagle Eye" carrier-based early warning aircraft has  The link-16 data link has a transmission efficiency of 2mb per second and a range of more than 900 kilometers.

    "The ZBF-18 data link used by the Y-33 early warning aircraft has a transmission efficiency of only 720kb per second, and the distance from left to right is only 320 kilometers.

    The comprehensive performance is not even half of the link-16 data link on the E-2C "Hawkeye" carrier-based early warning aircraft.

    This will be somewhat of a disadvantage in complicated air operations. In order to solve this problem, China Tengfei installed a confidential communication system on the Y-33 early warning aircraft based on the actual situation of the domestic air force relying on ground guidance.  Formation and multi-batch guidance, the Y-33 early warning aircraft will activate this communication system and form a search and guidance air situation network with the long-range radar and command system on the ground.

    At this time, the Y-33 early warning aircraft is not so much an early warning aircraft as it is an air condition radar flying in the sky.

    Similar situations exist more or less on special support aircraft such as Yun-31, Yun-32, and Yun-34. Only the Yun-17x medical ambulance fully meets the theoretical requirements and has become one of the few capable of taking off in China at this stage.  A complete body that can be handled.

    But despite this, these aircraft not only solve the problem of availability for the Air Force that lacks similar equipment, but also steadily improve the combat effectiveness of the Air Force.

    Let's take the Yun-33 early warning aircraft as an example. Although it can only be transformed into a space-based radar in a large formation and in multiple batches, it does not mean that the Yun-33 early warning aircraft is really useless. The Yun-33 early warning aircraft can still detect more than ten people by exploiting every opportunity.  Provide first-hand information on the most threatening targets in the batch and prioritize our own fighter planes to intercept or attack.

    ??This has never been seen in previous Air Force combat sequences, and this is definitely a huge improvement for the Air Force. At least it is better than the trj-500 radar warning aircraft, which only detects amateurs without a command and guidance system.  many.

    Besides, this batch of Y-3x special support aircraft developed and produced by China Tengfei is not the whole group, and there is still a lot of room for improvement from platform to related technology.

    In fact, in the plan submitted by China Takeoff to the Air Force and the headquarters, the aircraft carrier platform for all special support aircraft is not the current trj-700 regional airliner, but a new generation of trj-900 regional trunk airliner.

    This is a model between trj-700 and fcnb-2000.

    The maximum take-off weight is 51.2 tons, the maximum number of passengers can be 124, the maximum range is 4,627 kilometers, and the practical ceiling is 13,000 meters.

    It uses two wd-64ml large bypass ratio turbofan engines with a thrust of 10.5 tons, and the layout adopts an under-wing suspension instead of an aerodynamic solution suspended at the tail like the trj-700, making the trj-900 more  It is close to the mainstream aerodynamic layout of today¡¯s civil aviation aircraft.

    It is said to be a regional airliner because the fuselage, landing gear, wings and other main structural parts of the TRJ-900 are enlarged on the basis of the TRJ-700 regional airliner, with an emphasis on comfort and range.  A disruptive improvement, it can be used as a replacement for the TRJ-700 to perform medium-range passenger transport missions.

    However, in addition to the attributes of regional airliners, the flight range of more than 4,500 kilometers, more than 100 seats, and a more comfortable riding experience are sufficient to carry out trunk flight missions of more than 1,500 kilometers, especially from North China to East China, East China to South China, and South China to Southwest and Southwest China.  Not only can the trj-900 be easily promoted to these classic domestic popular trunk routes of about 2,000 kilometers in North China, but more importantly, the lighter fuselage and more fuel-efficient engines bring about the trj-900.  Lower operating costs compared to Boeing 737 and Airbus A320.

    Because of this, once the trj-900 regional trunk aircraft is fully mature and put into operation, it will not only become the terminator of Bombardier Brasil's regional airliners, but also become the most powerful competitor of Boeing and Airbus.

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