966 The sword of the sky is cast (2)
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(Because the book friend group 9512455@Dinzhu’s girl strongly requested that it would be a 3/9 extra update for female readers in the military industry empire who have less than double digits)
"Yes, this one is one-third less than the number of 16-bit chips, three fewer modules, and the temperature has dropped a lot, but it is still not enough unless we have more advanced chips..." Ren Xinmin said on the side.
He always felt that there should be more advanced chips in the hands of the Ninth Academy.
Although 16-bit is beyond their imagination, after all, the most advanced foreign one is 8-bit. In the past, they used 4-bit microprocessors, while 32 completely made them completely crazy.
Thinking that the Ninth Academy did not intend to let them know the existence of 32-bit chips at the beginning, Ren Xinmin and others hoped that more advanced chips would appear, so that data processing would not require full power to be turned on.
This is the opportunity to understand the true technical level and strength of the Ninth Hospital. Otherwise, they would not have been willing to stay in the Ninth Hospital for such a long time.
"Mr. Ren, do you think our Ninth Hospital can have chip technology that surpasses the entire world for several generations? How many years have you been working on the 32-bit, and there are still many problems now. Otherwise, it would not have generated such a large amount of heat!" Liu Yijiu said with a wry smile. "What if the heat dissipation hole of the guidance system is larger? Can it work?"
He didn't want to deal with these things anymore, so he changed the subject.
"No, we have also simulated it on computers, which will affect the flight posture of the missile..." Liu Yijiu had just had an idea, and Du Zhongkun and others shook their heads.
The advanced active radar guidance system will generate very large heat because internal electronic components and power supplies, and the external heat will also generate heat. The heat from the missile guidance compartment must be dissipated through the heat dissipation hole.
"Where are liquid nitrogen?" Liu Yijiu suddenly thought that many active radar guidance in the United States use liquid nitrogen for heat dissipation.
"Liquid nitrogen?" Everyone else stared at Liu Yijiu in a daze.
They really haven't thought about this problem.
"Yes, liquid nitrogen, according to the speed of our medium-range air-to-air missiles, the speed reaches Mach 3. According to the maximum range of 90 kilometers, it only takes less than 90 seconds from launch to maximum range. If the speed of not reaching Mach 3 before is not reached, it will not exceed a hundred seconds..." Liu Yijiu's brain was running rapidly, calculating the feasibility of this solution.
The missile is on the launch frame of the fighter. Because the speed of the fighter will also rub against the air to generate heat. The cooling system must work when the fighter takes off, otherwise it will damage the precise electronic system inside.
Just relying on the heat dissipation hole, the heat in the guide cabin cannot be dissipated, or insufficient dissipation will also affect performance.
After Liu Yijiu proposed to use liquid nitrogen to dissipate heat in the guidance cabin, a group of technical experts quickly began to demonstrate the plan, and then finished the design plan and added it to a supercomputer for simulation. The result was very exciting.
"I really didn't expect that this effect can be achieved by just using a little liquid nitrogen to dissipate heat and not adding much weight!"
"We are old! Our thinking is rigid..."
"Comrade Xiao Liu is really amazing..."
After getting the results, a group of technicians gave Liu Yijiu a thumbs up.
Liu Yijiu was very helpless. It was not that he didn't enjoy this compliment, but that he was very distressed. These technical experts are not very familiar with the use of advanced electronic components. As Liang Sili said, their thinking was a bit rigid!
Many times, they all know the solution to the problem, but no one can think of it.
If Liu Yijiu hadn't thought of some high-speed missiles in the United States or used this thing to dissipate heat, there was nothing he could do.
The heat dissipation effect of liquid nitrogen is very ideal and is relatively easy to store. It can be solved by simply surrounding a few circles of stainless steel pipes containing liquid nitrogen around the electronic components.
Using computer simulation, we prove that the method is indeed effective, and then let the production department rush to manufacture it and assemble it on the guidance system. In the test room, the guidance system can be kept at a temperature of more than ten degrees! Under such a temperature, the calculation speed of the entire guidance system can be maintained until the maximum.
Once the heat dissipation problem is solved, there will be no major technical problems in the entire missile.
"The next step is to let the imitation F-14 loading weapon system be tested. The performance of our missiles must be tested before shooting!" Liu Yijiu did not want a test-fire error in front of the Iranians. "It is necessary to ensure that the hit accuracy is at its highest!"
No one can guarantee that he will win every shot.
The target machine tested this time was improved by using the 50000 kilometers and has a maximum speed of more than 1,000 kilometers or less. Without bomb loading, the speed can be increased more. The advanced control system allows the target machine to have stronger maneuverability, which is much more complicated than a high-sonic target machine like Changkong 1.
Over-visual combat can only rely on the performance of missiles.
If I can win every shot when shooting, it would be strange if the Iranians can run away!
"How many shots are used to test the J-8 or J-7? First use the Changkong-1 target aircraft..." Du Zhongkun suggested to Liu Yijiu.
This plan was rejected by Liu Yijiu.
"Since we have chosen such a complex technical difficulty, we must maintain high standards and high requirements. This is not for our customers, but for our own national defense!"
"If this is the case, it will be a considerable expense to knock down the target machine during the test shooting..."
"No matter how high the cost is, as long as it can be sold, it is not our responsibility!" Liu Yijiu just mentioned this issue, and Du Zhongkun and others could easily understand it.
The various weapons and equipment developed by the Ninth Academy, whether it is the Zhi-91, the Dragon Guard tank, or the original 336 rocket launcher, are not low. After being sold, the R&D cost is directly calculated.
A number of technicians from the Ministry of Aerospace Industry do not understand it. They believe that the most appropriate thing is to control costs.
When I first studied J-5, the cost was only 1.2 million yuan!
"Now war is no longer the kind of war situation that was used to compete for quantity. If you are equipped with J-5 and J-6, and encounter advanced fighter jets like the F-14, how many can you overturn it? Even if you take off dozens of them at once, if others don't get entangled..." Liu Yijiu naturally knew that they were considering cost issues beyond performance issues. "So what we need to consider is performance first, and then cost. The existence of the Ninth Academy is to develop higher technology and more top-level weapons and equipment!"
To put it simply, it is to solve the problem first and then consider the cost.
This is the same idea as other units in China. The only difference is that other units have funds allocated by the state and the country's money is invested in infrastructure construction. Cost is the biggest issue that needs to be considered, and cost performance has almost become the decisive factor.
The performance is almost the same, but the cost must be to the lowest level.
The Ninth Academy itself has a huge source of income and has the export of many advanced weapons and equipment, so they only pursue performance. In order to catch up with Europe and the United States as soon as possible, and no longer be threatened in high-end and sophisticated places.
"Where there is blockade and monopoly in the field of national defense and military industry, there is independent innovation wherever there is blockade and monopoly!" This sentence cannot be simply understood. Because independent innovation not only requires a lot of experience accumulation, but also requires strong economic support. Without enough economy, it is impossible to turn some ideas and designs that require high costs into reality.
This is a very contradictory thing.
The country is poor, and the technicians are much more courageous.
Ren Xinmin and others couldn't say anything about the matter of the Ninth Hospital. They discovered from the beginning that the biggest difference between the Ninth Hospital and them was that as long as the technicians of the Ninth Hospital had an idea, they would immediately start to verify it. If they failed, they would change to another solution until they finally came up with the technology they needed. The experience accumulated quickly enough, enough technology development became faster and faster.
But they can’t do it, and they have ideas, and they must argue and argue. Otherwise, once the research fails, it will be a huge waste of scientific research funds.
This was influenced by the thinking model of "more, fast, good, and save" before. A kind of thinking has always been circulated in the technology industry: the designer has gold in his writing, and the manufacturing cost of the aircraft is related to the design cost, and the design information cannot leave a root of disaster. If there is a problem, it only costs 1 yuan if it is modified during design; it may cost 100,000 yuan or 100 yuan if it is modified during trial production; it may cost 100,000 yuan or 100,000 yuan if it is modified during mass production; it may cost 100,000 yuan or hundreds of thousands of yuan if it is modified during mass production. The designer cannot ignore this account, because our country and our factory are still very poor at present.
In the military industry field of the Republic, the guiding ideology has always been to save as much as possible, reduce costs and improve quality while meeting tasks. Saving is the most important thing! In order to save, some performance requirements can even be reduced when necessary.
What kind of thinking creates what kind of creative spirit and work attitude.
In the early days of the founding of the People's Republic, few people were from technical backgrounds. They never thought that enough funds must be invested to produce technology research and development. Every little scientific and technological progress requires countless funds!
The many technicians in aerospace have the same thinking. For them, they can only realize the technology and meet the requirements, and they must control the cost issues.
The Ninth Academy began to carry out the final assembly of medium-range active radar-guided air-to-air missiles. Liu Yijiu informed 611 to prepare for a test flight experiment to imitate the F-14 loading weapon system. All three prototypes were ready to fly missiles.
Zhu Houdao has long been looking forward to such a result, and his reply to Liu Yijiu was that as long as the missile was in place, it would be fine immediately.
The fire control system on the fighter jet has been loaded long ago, just waiting for the missile to come into place.
"Xiao Liu, what's the right name for this thing? We really can't think of a good name!" Du Zhongkun stayed in the workshop while the missile was being installed.
Even Liu Yijiu was staying in the assembly workshop.
"This is a sharp sword guarding the sky of the Republic. You can fire it when the pilot does not see the target, just call it a long time ago!" Liu Yijiu had already thought of the name.
Chapter completed!