For China's new generation of fighter J-20, over the years, J-20 has undergone many rectifications, the whole has been finalized and began to mass produce in small quantities, so far the number of equipped troops has reached eighty, but the Air Force is still in the trial stage of J-20, the military gradually groped for J-20, and gradually fed back various problems, most of the problems point to one, that is, insufficient thrust. Astronomy

The so-called lack of thrust is to think that the J-20 itself is a heavy fighter, with a maximum load and a total weight of more than 35 tons, but the configuration of the two engines, whether it is the use of the domestic Taihang engine or the latest modification of the Russian AL-31F, can not achieve the overall thrust-to-weight ratio of more than 1, even if it is the latest modification of the AL-31F, the thrust of a single engine is only nearly 13 tons, and the maximum total thrust of the two engines is only about 25 tons, 25 tons of thrust, and the maximum 35 tons of aircraft, In the vast majority of cases, aircraft cannot achieve thrust-to-weight ratios greater than 1, and there are only two options for adequate maneuverability, either to reduce the ammunition load or to reduce the fuel load.

Reducing the ammunition load means a reduction in combat effectiveness, reducing the fuel load means a reduction in endurance, which has always been a very headache and very tangled problem for the military, the root cause is nothing more than the absence of better engine technology, and the United States has always been far ahead in this field, Pratt & Whitney's F119 series engine, thrust is at least 40 higher than the Russian engine of the same level.

According to the parameters of the J-20 and the general situation of the current top fighters, Zhang Wenhao and Xiao Er jointly determined an index.

The thrust of the new military engine developed by Dongchen should reach at least 18 tons or more, so that if it is equipped with the J-20, even if the aircraft is fully loaded, it can also obtain a thrust-to-weight ratio greater than 1 by afterburner, so as to have stronger maneuverability.

If you don't open afterburner, the thrust of the engine is about 14 tons, so that it is enough to cope with the use of fighters most of the time, after all, fighters do not need to exceed 1 thrust-to-weight ratio most of the time, but once in wartime, the thrust-to-weight ratio of the aircraft, from the perspective of maneuverability, far exceeds the small thrust-to-weight ratio of the aircraft, the thrust-to-weight ratio alone determines the comprehensive combat effectiveness of the fighter and the ability to get out of trouble.

Determined the design plan, Zhang Wenhao let Xiao Er quickly give all the key parts of the processing design drawing, directly sent to Jiangcheng, by the father Zhang Xingping in charge of the mold factory to open the mold into production, Zhang Xingping is responsible for the mold processing plant has the world's leading high-precision processing technology, but the mold processing is for the future mass production, Zhang Wenhao in order to produce a prototype as soon as possible, directly let Xiao Er use the high-precision machining center located in Jiangcheng, for each new parts for a single processing and manufacturing, It is hoped that the prototype will be delivered to the military as soon as possible, and the military will verify it.

Although Zhang Wenhao is in Zhonghai at this moment, Xiao Er can directly use the network to remotely control the high-precision machining center located in Jiangcheng, and all the production and processing links in the machining center are fully mechanically automated, so the production of core components has been started in Jiangcheng without anyone knowing.

Zhang Wenhao was preparing for Dongchen to go to Jiangcheng on the third day of starting production, he first instructed the crew to prepare, and then said to Xiao Er; "Let's go to Jiangcheng this time, we have to wait until all the core components are produced before bringing the parts back to Zhonghai for assembly, because the stakes are huge, before the end of this process, we will take root in Jiangcheng."

Xiao Er said: "I'm afraid it will take about ten days, the number of parts and components is too much, such a one-by-one processing, I'm afraid ten days is still a conservative estimate." ”

Zhang Wenhao nodded and said: "Ten days is not a big problem, just go to Jiangcheng this time, and by the way, the production of positioning satellites will also be started, and you are responsible for two at the same time, no problem, right?" ”

Xiao Er smiled: "To me, doing these two things at the same time, it's as simple as playing with your mobile phone while going to the toilet, boss"

Zhang Wenhao sweated, nodded and smiled: "In this case, then this matter is up to you, if it is done well, it will be an incomparably gorgeous transformation for Dongchen, the national defense industry is the highest field in the industrial field, even if it is the aviation industry, it is mostly for national defense services, Dongchen is now the absolute boss in the field of civilian industry, if the product developed this time is strong enough, then it is equivalent to releasing a signal to the world: Dongchen is about to become the sole master of the national defense field." ”

Xiao Er opened his mouth and asked: "Boss, even if we develop a new engine according to the design, will the military agree to us to publish the engine data?" ”

Zhang Wenhao said with a smile: "It's not a question of whether they agree or disagree, but they will definitely publish the final data as soon as possible." ”

"Why?" Xiao Er asked curiously, "Shouldn't this be a secret?" ”

Zhang Wenhao said with a smile: "The technology is confidential, but the parameters are not confidential, now the basic data of the world's major mainstream fighters can be found on the Internet casually, and the first party does not hide these data, and the data is a very useful means to enhance deterrence, no need to use in vain, if the military publishes these data, the surrounding countries will have a great sense of crisis, and some countries that like to brew small actions, I am afraid that they will stop a lot." ”

Xiao Erle said: "If this is the case, I think the announcement of the large side inclined propeller we developed at the beginning is a stronger confirmation of Dongchen's defense industry capabilities." ”

Zhang Wenhao said with a smile: "This will definitely not be announced, first of all, because the appearance itself is a great secret, once the appearance is leaked, it is possible to be imitated by others, at least, to point out a general direction of development for others, and this thing is of great significance, it is not a fighter with a combat radius of only one or two thousand kilometers, it can swim in any ocean in the world, carrying a nuclear bomb that is enough to destroy millions of people, once this secret is known to Western countries, Then I am afraid that it will attract their targeting. ”

Xiao Er nodded lightly and said, "Since this is the case, let the military decide." ”

Zhang Wenhao's vigorous investment and construction in Jiangcheng at the beginning, now it is very effective, especially Zhang Wenhao's high-precision machining center established in Dongchen, with the continuous expansion of scale, research and development and production capacity are also improving, when Zhang Wenhao just arrived in Jiangcheng, this unattended production line has begun to have a steady stream of finished parts began to roll off the production line, almost all metal parts, this machining center can easily deal with it, and other parts are not a big problem, The production line of Dongchen Aerospace can solve most of the new parts production, and the remaining small part can also be solved by Dongchen Aviation's suppliers.

In 12 days, Dongchen High-precision Machining Center, Dongchen Aerospace and Dongchen's suppliers trial-produced various parts of the new engine, and the spare parts produced by the suppliers were directly sent to Dongchen Aviation, while Zhang Wenhao took most of the core components produced by Dongchen High-precision Machining Center and took off from Jiangcheng to Zhonghai to prepare to manufacture the prototype on the production line.

In the past 12 days, Zhang Wenhao has gathered enough spare parts for three prototypes, and the three prototypes have been handed over to the military, which is enough for the military to test and verify.

From the day Zhang Wenhao returned to Zhonghai, Director Liu rushed over from Yanjing again, this time the senior management gave the whole Shen Fa to Zhang Wenhao, and naturally paid great attention to the new engine developed by Dongchen, and from the day of the start of assembly, Director Liu became the live broadcaster of the entire assembly process, and constantly made a brief and rapid text report on the progress of Dongchen's side to the senior management.

On the fifteenth day, all three engines that began to be assembled at the same time were assembled and rolled off the assembly line.

The design thrust is 16 tons, the afterburner thrust is 20 tons, and the weight of the afterburner chamber used in the full load is basically the same as the Russian-made engine used before the J-20, and according to the fuel consumption standard given by Zhang Wenhao, it will be at least 25 less than the engine of the same thrust level.

The engine officially rolled off the assembly line, and Zhang Wenhao named this engine the falcon, because the falcon can be said to be one of the largest birds of prey, with great strength and speed, and it sounds more domineering than the raptor.

As soon as the front foot of the "Falcon" came off the assembly line, Zhang Wenhao found Director Liu on the back foot and said: "The military should not hide the relevant performance parameters of the "Falcon" from the international community, right? ”

"Probably not." Director Liu said: "The international community basically does not keep this data confidential. ”

Zhang Wenhao said: "You still ask the senior management, if it is determined that the relevant performance parameters will not be hidden, then Dongchen will release official news to the world, informing them of the news that Dongchen's first military aero engine is officially off the assembly line." ”

Director Liu asked in surprise: "Isn't it, it was announced so early?" ”

Zhang Wenhao nodded and said: "Since it is still going to be announced sooner or later, it is better to announce it as soon as possible, anyway, Dongchen's products are absolutely reliable, and there is no need to wait until you get all the arguments to announce the results." ”

Secretary Liu said: "I'll ask my superiors for instructions, if the superiors have no opinions, it's all up to you." ”

Saying that, Director Liu couldn't help but ask again: "Dongchen Falcon engine, when will it be able to achieve mass production?" ”

Zhang Wenhao thought for a while and said: "Half a month at most, after all the molds are completed, you can directly enter mass production." ”

Director Liu asked again: "What about the price?" What is your offer to the military? ”

Zhang Wenhao smiled slightly and said: "Don't worry, it's definitely a patriotic price, which is consistent with the current selling price of the Russian-made AL-31F, more than three million to four million US dollars, the same price, if you use the Dongchen Falcon engine, the military can increase the overall thrust-to-weight ratio of the J-20 to about 1.14 under the maximum load state, and in the vast majority of ordinary states, the thrust-to-weight ratio is above 1.4." ”

Director Liu couldn't help laughing and said: "At your price, you want to force your superiors to grit their teeth and upgrade all the active fighters of the entire Air Force!" (To be continued.) If you like this work, you are welcome to recommend this work as a registered member of literature, and your support is my biggest motivation. )

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