Chapter 247: This bomb is decided like this
After hearing it on behalf of the user, it makes sense.
"Director Gao, you are worthy of having been on the battlefield. You are so considerate about our operations. Indeed, we will encounter a lot of situations like this when fighting in street battles."
< br>The people at the Changjian Factory heard this and learned.
Luo Gongze shook his head: "Haha, Director Gao, we really can't compare with you on this. I really didn't think of this matter."
Gao Zhendong smiled and said: "Thank you, thank you. This soft launch is to solve this problem. First use a small thrust to push the missile out, and then when it reaches a safe distance, start the high-thrust engine to speed up, so that basically there will be no This worry is gone.”
The users heard this and applauded.
The people at the Changjian Factory have only one concern: "Director Gao, I'm afraid that the production of dual-thrust engines will be difficult for our factory personnel."
This is actually There are two meanings: it is difficult for us to produce, and it may not be easy for you, Director Gao, to design. After all, it is your first time to work on a rocket engine. No matter how talented you are, you may not be able to achieve success overnight.
Gao Zhendong smiled and said: "It doesn't matter. I am considering using dual thrust. The main reason is to make the structure of the projectile simpler. In fact, I have a backup plan."
He drew a picture while talking: "If there are technical or cost difficulties, then you can attach a small-thrust take-off engine and discard it after launch, or use an external plug-in method that does not affect the aerodynamic shape without discarding it. These are also acceptable. The difficulty of this method is much lower than that of double thrust.”
Hearing this, Luo Gong couldn’t help but admire Gao Zhendong’s thoughtfulness, while trying his best to climb towards the optimal structure and better techniques. Don't forget to keep everything in mind. With Gao Zhendong's explanation, everyone no longer has any doubts.
Soft launch must be carried out. As for the method to be used, it depends on the development of technology. In short, the technical and tactical benefits are high and the technical risks are very low. It is worth it!
Gao Zhendong continued to draw pictures. Although the scale of today's meeting was small, the purpose was to provide technical explanations and finalize everything that could be determined.
Because the funding for this bomb comes from the Changjian Machinery Factory itself, it has a lot of freedom in formulating many processes and procedures, as well as technical and tactical indicators.
To a certain extent, the words of the user representatives are all suggestions. The decision-making power lies with Changjian Factory, and fundamentally with Gao Zhendong, because it is actually him who decides how far the technology can be achieved.
What Gao Zhendong drew at this time was the principle block diagram of infrared angle measurement guidance.
To put it simply, the infrared goniometer is to install a special infrared light source at the tail of the missile, and then the infrared goniometer captures this infrared light source, and automatically outputs correction instructions based on the deviation between the infrared light source and the line of sight, so that The missile automatically approaches and tries to coincide with the aiming line.
It should be noted here that the output of the correction command does not require digital calculation, but relies on an analog circuit similar to a comparator to directly output the control command based on the deviation between the light source and the line of sight, so it is not required High-end goods like missile-borne computers.
As for using a special infrared light source, it is mainly to distinguish it from other light sources on the battlefield.
Gao Zhendong explained while drawing. When Luo Gong saw that he had drawn two sets of infrared angle measuring instruments on the schematic diagram, he was a little puzzled. Isn't this a waste?
"Director Gao, I understand the principle of your infrared goniometer. It is really achievable under the existing technical conditions. It is very clever. But why do you need two sets of infrared goniometer equipment? Can't it be integrated into one set?"
Gao Zhendong nodded: "It can be integrated, but the cost is too high"
He pointed to two sets of infrared goniometers and added one at the bottom. One note is "wide angle" and "telephoto".
In fact, it is the difference between low magnification for a large field of view and high magnification for a small field of view.
He explained: "Because we need fire control separation, many times the distance from the axis of the aiming line is relatively large as soon as the missile is launched. However, the high-magnification goniometer used for precise angle measurement guidance has a small field of view. It is often impossible to capture the traces of missiles and cannot guide them. "
Everyone understands what he means. Anyone who has played with high-power telescopes knows that high magnification and a large field of view are often incompatible. It is possible to have both. The size, weight and cost are unacceptable.
Gao Zhendong pointed to the set of goniometers with a large field of view: "So my consideration is to use a goniometer with a large field of view and low magnification to capture the missile in the early stages of launch and move the missile first Guide it to the field of view of the small field of view goniometer, and then the small field of view and high magnification goniometer takes over for precise guidance."
Everyone understands, well, it's a relay race. Not to mention, Director Gao's method is simple and crude, and it can really solve the problem.
However, a technician from the Changjian Factory also raised his own question. Anyway, their self-positioning is that they are here to learn, so there is nothing to be embarrassed about.
"Director Gao, then why not use a set of adjustable infrared angle measurement equipment to cover both working conditions? Isn't this more convenient?"
Gao Zhendong shook his head: "The price is too high Well, first of all, a set of optical devices that can adjust the focus in a wide range is a bit beyond the standard for our current processing capabilities. The yield is low and the price is high. Second, if this is the case, manual adjustment is actually unavailable. Yes, then we must add an automatic zoom control system.”
“This is also very difficult for us now. The price of the entire system is actually far more expensive than two sets of goniometers, and it may not be possible. No matter how light it is, its reliability, usability, maintainability, ease of use, and cost-effectiveness are all very poor."
This principle is actually a bit like what Gao Zhendong said in his previous life: " For specific requirements, with the same cost, zoom is not as good as fixed focus. For example, when taking portraits, who is a photographer who doesn’t have a 50mm large aperture fixed focus lens? Let's stop this matter, "XX ruins a life, photography is poor for three generations", isn't it the SLR that is poor for three generations? The SLR alone is useless, but if you add the tilt-shift and rangefinder cameras, let’s not talk about them.
When everyone heard this, they all admired Director Gao's grasp of technology so accurately. After thinking about it carefully, everything he said made sense.
Especially the user representative: "Director Gao, can you say the properties of those words you just mentioned? I have to write them down. Those words are the same for all equipment. Useful."
Gao Zhendong said a few words again, and everyone quickly recorded it, with an expression of "I have learned it, I have learned it".
As for the guidance system, everyone also fully recognized Gao Zhendong’s plan and route, and there was a sense of happiness as if food was being fed to the mouth.
Gao Zhendong talked about the last subsystem, the warhead.
"As for the warhead, I leave it to the comrades of the Changjian Factory. We just need to determine the interface between the warhead section and the power control section. At this stage, this interface is a simple mechanical connector, between the warhead section and the power control section. There is no need for any signal exchange between sections, because the fuze is in the combat section.”
Director Gao is really the best. When the need is complicated, he does not hesitate and even buys an additional set of goniometers. , but also to ensure technical and tactical performance, but when it is not needed, he can also solve the problem with a few screws.
Speaking of this, Mr. Luo of the Changjian Factory is not sleepy: "Well, this thing is left to us from design to manufacturing, haha, otherwise it will always feel like we have done nothing. I’m so embarrassed.”
Everyone burst into laughter. After Gao Zhendong said that he had broken the whole system into pieces, everyone felt that this project had a very good future.
It is not a small good, but a big good, getting better and better.
Gao Zhendong still added: "But I have a suggestion for the war department."
Mr. Luo said seriously: "Well, please tell me, Director Gao."
He now has full confidence in Gao Zhendong, This comrade will definitely not be aimless.
"The energy-containing armor-piercing warhead has an optimal detonation height, which is called blast height, right?"
Mr. Luo heard the song and knew what it meant: "Yes, but This high-explosion point is generally far beyond the front end of the warhead fairing. If the fuze is placed at this position, the length of the entire projectile will be unnecessarily extended.”
Gao Zhendong smiled and said: "We don't need to extend the entire missile body, just extend the fuse. We can put a long pole out and put the fuse there. We can call it a high-explosive stick."
"If To be more flexible, the high-explosive rod can be made telescopic and adjustable. Anyway, the energy-concentrated armor-piercing warhead is concave and can accommodate it, so the length of the missile will not change much. "
Luo. I drew a picture myself and was happy: "Director Gao's suggestion is good. Using the structure of the armor-piercing warhead not only solves the problem of explosion height control, but also does not change the length of the projectile too much, haha."
After speaking, he turned his head: "Director Gao, we must fully consider this suggestion."
At this point in the meeting, basically all the combat technical indicators and technical routes of this man-made anti-tank missile have been decided. .
The next work has nothing to do with the user for the time being. They mainly provide field test resources and cooperation. The main work is completed by Gao Zhendong and Changjian Factory.
Gao Zhendong said: "I will trial-produce the rocket engine in a short period of time. The wire pay-out mechanism will be handed over to the comrades of the Changjian Factory. As for the wires, I can first imitate the SS.11. If there are Come back to me to solve the problem.”
After improving the guidance method, the flight speed of SS.11 has reached 220m/s. It is worth imitating and brainstorming, but I don’t know if it is the same when they improve the guidance method. Wiring has also been improved.
The comrades of the Changjian Factory have no objection to this. The more work they undertake, the happier they are: "Well, at the same time, we will also build the warhead as soon as possible, and strive to have it within half a year to nine months. First, shoot a batch of hand-controlled full-range test bombs, and at the same time determine the range and armor-piercing power."
Gao Zhendong nodded: "I will let you shoot the design of the infrared angle measurement guidance. The whole process of bombing and related tests are carried out at the same time. As long as the previous things are done, the speed is temporarily reduced and the hand control method is actually better than SS.11.”
The user representative looked at the results and was very satisfied: "Well, this bomb is settled! Comrades, if this bomb is really produced like this, it will be so advanced than the Gallic Chicken SS.11. Ah."
It is lighter and smaller, but it guarantees the same power and range, it can fly quickly and accurately, it is more convenient to use, and it has a wide range of applications. Representatives of users are a little worried about the faces of comrades who imitate SS.11. Ugly.
The people in the Changjian Factory don’t have this worry. Their mood is probably: “Thank you, Lao Tie, for leaving us the rocket!!”
(End of this chapter)