Chapter 1638: can not wait anymore

When the 3601 in Shengjing, a shift of the old and the new was quietly unfolding, the door of a hangar far away from the Xijing Aircraft Factory was slowly opening.
Under the towing of an electric car, an airplane slowly revealed its true body from the shadow of the hangar.
This is a rather weird-looking aircraft. It has a nose similar to that of the "Yun 7", but its stature is significantly shorter. Its landing gear is unusually thick, and its wings are not open. Instead, it is folded at the rear of its fuselage at a strange angle; on its back, there is a large disk-shaped object on its back. Looking at the complicated hinge and transmission mechanism, this disk-shaped object should also have the function of rotating. ; Its tail is even more weird. It is not the usual single tail of a transport aircraft, nor is it the double tail that some aircraft use, but it has 4 tails!
As the plane was towed out of the hangar, the large line of characters sprayed under the cockpit of its fuselage was all exposed-Air Police 100.
This should be its name, right?
The weird plane was towed to the end of the runway. Then, the tractor left. A ground crew wearing a red vest stood in front of it and raised a small flag. As the flag waved, this aircraft The plane began a series of transformer-like science fiction performances-the wings, which were also gathered at the rear of the fuselage just now, slowly opened under the drive of the hydraulic device, and then stretched forward and then extended at a uniform speed. , And finally closed with a "click"!
In the cockpit, the test pilot refreshed a series of self-check data on the big screen in front of his eyes. Everything was normal. The tower command sound came from the headset, and the test pilot activated the two turboprop engines on the left and right sides of the wing in turn— —This is a brand-new model developed on the basis of the "Turboprop 6" where Zhuzhou 6608 is located, and the application of "Free Turbine" technology. The maximum thrust reaches 3,530 kilowatts, 4,800 axle horsepower, and the average used power exceeds 4,300 axle horsepower. Only 950 kg, the power-to-weight ratio reached 3.72, because the technology applied to the engine compared to the old "turboprop 6" can be regarded as a complete update, so this engine has received a brand new model name: "turboprop 10".
This was the promise made by the Zhuzhou Plant to Tan Zhenhua in the original "Route Struggle" meeting. In five years, they must complete the work of developing this engine based on the "Turboprop 6". It seems that Fei Bingfang The original promise was fulfilled, and the time was just right, that is, the performance parameters have not yet reached 100% of the requirements. Tan Zhenhua understands this. In fact, he is very satisfied that he is able to achieve this point. Any engine, It takes time and flight hours to settle, and through continuous improvement to slowly achieve the best, he believes that the Huaxia turboprop engine, which has broken through the technical barriers of "Free Turbine", has continued to advance in materials and technology. Under the impetus, it will definitely advance step by step.
As the two engines erupted with a huge roar, this weird aircraft began to taxi on the runway, getting faster and faster, and finally freed from the restraint of the ground, jumped into the blue sky, flying higher and higher, turning into A small black spot on the ground in the eyes of people looking up at it.
Gong Guozheng also looked up at this small black spot in the sky. A gentle breeze blew his gray hair, but he didn't notice it until Chen Yijian patted him on the shoulder. After turning his face, he smiled with Chen Yijian, and then walked slowly towards the tower side by side. His low voice came from the wind: "Old Chen, the boys in the school are getting better and better. That Xiao Dong, Dong Jianhong’s performance is particularly outstanding, they can take my class, I think I can retire...".
...
When the "Air Police 100" spread its wings and flew into the blue sky, intense construction was also underway on a secret test site in Jiangyou City in central Shu.
Liu Daxiang and Jiang Hefu, the old pair of partners, stood side by side under the SB101 high-altitude test platform, watching a group of young people busy hoisting up a brand-new engine. Three days later, this engine will Enter a new development stage-high-altitude test run.
The SB101 high-altitude test platform began construction in 1965. It was not until Liu Da wanted to become its third-generation chief designer. It was finally completed in 1995 and passed the national inspection and acceptance. It took a full 30 years, and this Asia's first high-altitude test platform The completion of this also marks that China has finally entered the first echelon in the field of international aviation development and has complete testing methods.
The test cabin (and high-altitude cabin) of this test bench has an inner diameter of 3.7 meters, a length of 22 meters, a maximum simulated height of 25 kilometers, and a maximum simulated M number of 2.5. The test object is a vortex with a flow rate of 120 kg/s or less and a maximum thrust of 200 kN. Jet and turbofan engines.
Don’t underestimate this small test chamber. In order to ensure the normal operation of this test chamber, it needs to provide up to 170,000 kilowatts of electricity, which is equivalent to the daily life of a medium-sized city with a population of 2.5 million The total power consumption!
In addition, in order to simulate the working state of the engine under various temperature environments, it also needs to consume a large amount of natural gas. For example, the natural gas consumed by its heater running for a day is equivalent to the daily consumption of a small and medium-sized city, while the cooling device of the cooling device Everyone in a city with enough capacity for a million people enjoys air conditioning in summer!
Therefore, it is not fake at all that the aero engine is burned out with money. Even if the construction cost of this high-altitude station is not calculated, the cost of using it for only one day is an astronomical figure.
In China, in addition to the "National" project, I am afraid that Tan Zhenhua can afford the money. In fact, one of the many aero engines he invested in is now undergoing intense lifting operations— -A 15-ton thrust engine with a large bypass ratio code-named "Turbofan 20".
"Turbofan 20" is also one of the key models that were determined to be developed at the "Route Struggle" meeting that year. The engine adopts a three-rotor system and is improved by referring to the data of the imported D18-T engine. The bypass ratio is 5.6. Because of the full participation of the Ivchenko Design Bureau, the progress is rapid. In only 5 years, it has successively passed the development of the core engine, the addition of the low-pressure compressor section, the principle prototype stage, and the engineering test prototype stage. Technical node. Today, the engineering prototype has to be tested on the high-altitude platform.
Although as far as the overall process of developing an aero engine is concerned, at this point, it is only halfway there. There is still a long way to go, but it can take only 5 years to promote a brand new engine. At this point, it also fully demonstrates that China has been quite fully and proficient in the development of turbofan engines, and has a tendency to gradually move toward the design "kingdom of freedom".
This is not only the advancement of the aviation engine industry, but also the collective improvement of China's capabilities in various alloys and composites, hydraulics, electronics, precision machining and other fields in recent years-in fact, With the full authorization of the Ivchenko Design Bureau, the two large bypass turbofan engines produced by Xijing Engine Factory, D136/D18T, are far more popular in the market than the original ones produced by Uklan Mada Sic Goods goods.
Because the Xijing plant does not simply produce exactly the same according to the authorized drawings, they also worked with Ivchenko to make a series of improvements to these two mature models of engines, including adapting the FADEC system to the two engines, including The replacement of engine parts with domestic materials, including production process improvements, etc. These improvements have improved the service life, maintainability, emission standards and other performance data of the engine, while the fuel consumption is relatively reduced, and the price is relatively low. It’s cheaper than the original products of Ukelan, and the final result is that all aircraft users operating in Rakshasa and many other CIS countries that use these two engines are more willing to order from the Xijing factory. Engines to maintain their fleet.
And Liu Daxiang and Jiang Hefu know better that when the "turbofan 20" is successfully developed, China will complete the last piece of the puzzle of a larger bypass than an aero engine. From then on, China's transport aircraft will no longer have to worry about being caught by foreign companies. Stuck their necks, they looked forward to that moment.
They can't wait!
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