Chapter 421 Flagship of the National Defense Industry (1)
As for China's new generation fighter J-20, the J-20 has undergone many rectifications over the years. The overall shape of the J-20 has been finalized and small batch production has begun. So far, the number of equipped units has reached 80. However, the Air Force currently has
In the trial stage of the J-20, the military is gradually exploring the J-20 and gradually feedbacks various problems. Most of the problems point to one thing, that is, insufficient thrust.
The so-called insufficient thrust means that the J-20 itself is a heavy fighter. At the maximum load, the total weight exceeds 35 tons. However, the configuration of the two engines, whether it uses the domestic Taihang engine or the latest modification of the Russian AL-31F
, are unable to achieve an overall thrust-to-weight ratio of more than 1. Even the latest variant of the AL-31F has a single engine thrust of only nearly 13 tons. The maximum total thrust of the two engines is only about 25 tons. With a thrust of 25 tons, the maximum thrust is 35 tons.
In most cases, aircraft cannot achieve a thrust-to-weight ratio greater than 1. If you want to have sufficient maneuverability, you have only two options, either reduce the ammunition load or reduce the fuel load.
Reducing the ammunition load means a reduction in combat effectiveness, and reducing the fuel load means a reduction in endurance. This has always been a very headache and tangled problem for the military. The root cause is simply the lack of better engine technology, and
The United States has always been far ahead in this field. The thrust of Pratt & Whitney's F119 series engines is at least 40% higher than that of Russian engines of the same level.
Based on the parameters of the J-20 and the general situation of the current top fighters, Zhang Wenhao and Xiao Er jointly determined an indicator.
The thrust of the new military engine developed by Dongchen requires the afterburning thrust of a single unit to be at least 18 tons. In this case, if equipped on the J-20, even if the aircraft is fully loaded, it can obtain a thrust weight greater than 1 through afterburning.
ratio, thus having stronger maneuverability.
If afterburner is not turned on, the thrust of a single engine is about 14 tons. In this way, it is enough to cope with the use of fighter aircraft most of the time. After all, fighter aircraft do not need to exceed a thrust-to-weight ratio of 1 most of the time, but in wartime, the thrust-to-weight ratio
In terms of maneuverability, an aircraft with a large thrust-to-weight ratio is far superior to an aircraft with a small thrust-to-weight ratio. The thrust-to-weight ratio alone determines the overall combat effectiveness and escape ability of a fighter jet.
After confirming the design plan, Zhang Wenhao asked his waiter to quickly come up with the processing design drawings of all key components and send them directly to Jiangcheng. The mold factory in charge of his father, Zhang Xingping, would start the mold production and start production. The mold processing factory in charge of Zhang Xingping was already world-leading.
High-precision machining technology, but the mold processing is for future mass production. In order to produce a prototype as soon as possible, Zhang Wenhao directly asked the waiter to use the high-precision machining center in Jiangcheng to perform single processing and manufacturing of each brand-new part.
, hoping that the prototype can be delivered to the military as soon as possible for verification by the military.
Although Zhang Wenhao is in Zhonghai at the moment, the waiter can directly use the Internet to remotely control the high-precision machining center in Jiangcheng. All production and processing links in the machining center are fully mechanically automated, so the production of core components is unknown to anyone.
Under the circumstances, it has already been launched in Jiangcheng.
On the third day of starting production, Zhang Wenhao prepared Dongchen to go to Jiangcheng. He first ordered the crew to prepare, and then said to the waiter: "When we go to Jiangcheng this time, we have to wait until all the core parts are produced before bringing the parts with us."
Returning to Zhonghai for assembly, because the stakes are so high, we will take root in Jiangcheng before this process is completed."
The waiter said: "I'm afraid it will take about ten days. There are too many parts. To process them one by one, ten days is still a conservative estimate."
Zhang Wenhao nodded and said: "Ten days is not a big problem. It just so happens that I will go to Jiangcheng this time and start the production of positioning satellites. You will be responsible for both at the same time. Is that okay?"
The waiter smiled and said: "To me, doing these two things at the same time is as easy as boss, you use the toilet and play with your mobile phone at the same time."
Zhang Wenhao sweated, nodded and smiled: "In that case, then this matter is up to you. If it is done well, it will be an extremely gorgeous transformation for Dongchen. The national defense industry is the highest field in the industrial field.
, even the aviation industry mostly serves national defense. Dongchen is now the absolute leader in the civilian industry. If the product developed this time is powerful enough, it will be equivalent to sending a signal to the world: Dongchen is about to become a national defense player.
The sole master of the realm."
The waiter asked: "Boss, even if we develop a new engine according to the design, will the military allow us to publish the engine data?"
Zhang Wenhao said with a smile: "This is not a question of whether they agree or not, but they will definitely publish the finalized data as soon as possible."
"Why?" the waiter asked curiously, "Shouldn't this be a secret?"
Zhang Wenhao smiled and said: "Technology is a secret, but parameters are not. Now the basic data of major mainstream fighter jets in the world can be easily found on the Internet, and all parties do not hide these data. Moreover,
Data is a very useful means to enhance deterrence, and it should not be used in vain. If the military releases these data, neighboring countries will have a great sense of crisis, and some countries that like to brew small moves may stop a lot."
Xiao Erle said: "If this is the case, I think the announcement of the large canted propeller we originally developed would be a stronger confirmation of Dongchen's defense industry capabilities."
Zhang Wenhao smiled and said: "This will definitely not be announced. First of all, the appearance itself is a huge secret. Once the appearance is leaked, it may be imitated by others. At the very least, it will give others a rough idea.
The development direction of this thing, 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 nuclear bombs that can destroy millions of people. Once Western countries know this
If you keep it secret, then I’m afraid it will attract their attention.”
The waiter nodded slightly and said, "In that case, let the military decide."
Zhang Wenhao's initial heavy investment and construction in Jiangcheng has been very effective now, especially the high-precision machining center established by Zhang Wenhao in Dongchen. As the scale continues to expand, the R&D and production capabilities are also constantly improving.
When Zhang Wenhao first arrived in Jiangcheng, this unattended production line had already begun to continuously produce finished parts. This machining center can handle almost all metal parts with ease, and other parts are not a big problem.
Dongchen Aviation's production lines can handle most of the new spare parts production, and the remaining few parts can also be solved by Dongchen Aviation's suppliers.
For twelve days, Dongchen High-Precision Machining Center, Dongchen Aviation and Dongchen's suppliers trial-produced various spare parts for the new engine. The spare parts produced by the suppliers were directly sent to Dongchen Aviation, and Zhang Wenhao Taking most of the core components produced by Dongchen's high-precision machining center, they took off from Jiangcheng and headed to Zhonghai, preparing to manufacture prototypes on the production line.
In these twelve days, Zhang Wenhao collected enough spare parts for three prototypes. The three prototypes were handed over to the military, which was enough for the military to conduct testing and verification.
From the day Zhang Wenhao returned to Zhonghai, Director Liu rushed over from Yanjing again. This time, the senior management gave all Shen Fa to Zhang Wenhao. Naturally, they were also very concerned about the new engine developed by Dongchen, and from the beginning of the assembly From one day on, Director Liu became the live broadcaster of the entire assembly process, constantly making brief and rapid written reports on Dongchen's progress to the senior management.
On the fifteenth day, the three engines that were assembled at the same time were all assembled and rolled off the assembly line.
The design thrust is 16 tons and the afterburning thrust is 20 tons. The weight of the fully loaded afterburner is basically the same as the Russian-made engine used before the J-20. According to the fuel consumption standards given by Zhang Wenhao, it will at least be more than the same thrust level. The engine is reduced by 25.
The engine was officially rolled off the assembly line. Zhang Wenhao named the engine Falcon because Falcon can be said to be one of the largest raptors, with great power and speed, and sounds more domineering than a raptor.
As soon as the "Falcon" came off the production line, Zhang Wenhao found Director Liu on the back and said, "The military will not hide the relevant performance parameters of the "Falcon" from the international community, right?"
"Probably not." Director Liu said, "This data is basically not kept confidential internationally."
Zhang Wenhao said: "You'd better consult with the top management. If it is confirmed that the relevant performance parameters will not be hidden, then Dongchen will release official news to the world and inform them of the official rollout of Dongchen's first military aero engine."
Officer Liu asked in surprise: "Isn't it true? It was announced so early?"
Zhang Wenhao nodded and said: "Since it will be announced sooner or later, it is better to announce it earlier. Anyway, Dongchen's products are absolutely reliable. There is no need to wait until all the proofs are obtained before announcing the results."
Director Liu said: "I'll ask my superiors for instructions. If my superiors have no objection, I'll leave it all to you."
As he said that, Officer Liu couldn't help but ask: "When will the Dongchen Falcon engine be ready for mass production?"
Zhang Wenhao thought for a while and said: "It will take at most half a month. After all the molds are completed, we can directly enter mass production."
Officer Liu asked again: "What about the price? What is your quotation to the military?"
Zhang Wenhao smiled slightly and said: "Don't worry, it is definitely a patriotic price. It is consistent with the current price of the Russian-made AL-31F, which is more than three million to four million US dollars. At the same price, if the Dongchen Falcon engine is used, the military It can increase the overall thrust-to-weight ratio of the J-20 under maximum load to about 1.14, and in most normal conditions, the thrust-to-weight ratio is above 1.4."
Director Liu couldn't help but laugh and said: "With your price, you are forcing your superiors to bite the bullet and upgrade all the active fighters of the Air Force!" (To be continued. If you like this work, you are welcome to register as a member of Piaotian Literature and recommend it. This work and your support are my greatest motivation.)
