【Chapter 182】What Si Qing said was right, the person sent by Major Zhao was indeed outstanding, Si Qing and Du Jin had just finished preparing everything, and there was a knock on the door of the lounge, and Si Qing immediately confirmed that it was not her person, otherwise it would be impossible for this kind of irregular knocking sound, but she was not nervous, because the soldiers who were arranged nearby had already informed herself, and the entourage of the scientific research department had entered the library.

Then she nodded to Du Jin, signaling Du Jin not to be too nervous, and then went to twist the doorknob to open the wooden door, and the next second a tall figure appeared in front of the two, the dark green military uniform was an improved type

The "casual model", although it lacks a bit of military heroism and solemnity, but the wearer looks approachable, especially in the crowd, which is not so eye-catching, and it seems more integrated.

"Captain Si, Mr. Du, hello! Please come with me! After seeing the two people in the room, a calm and deep voice came into Du Jin's ears, and then he found out that this was a woman, because the upper part of the face was blocked by the brim of the hat, Du Jin relied on the other party's temperament and height, and thought that the other party was a thinner man, of course, Du Jin was only a little surprised, and did not delve too deeply, but immediately nodded and said that there was no problem.

And Si Qing is not as serious as Du Jin, she obviously knows this woman, and the relationship between the two is much more familiar, she nodded with a smile, and then whispered close to the woman's side: "Sister Xinya, I didn't expect Major Zhao to send you this time, I thought it was Bin Rui's Lei Gong?" The other party coughed lightly, and looked at Si Qing with some blame, but in the eyes of Du Jin on the side, this seemingly blaming look was like a friend's previous play, and there was no real blame, and then the woman who was called Sister Xinya by Si Qing had a smile on the corner of her serious mouth, she first looked at Du Jin, Du Jin immediately turned her head, pretending to be checking whether the things to be tested were all in order, although what was really useful was just a computer, and there was no need for any major checks.

The woman didn't care too much about Du Jin's clumsy acting skills, and when she saw that Du Jin had avoided her gaze before, she lowered her head slightly and approached Si Qing's face, and said with concern: "You, you, if you let Section Chief Bin know that you say bad things about him like this, your quota will be stuck again, and you don't know how to restrain it?" ”

"Aren't you the only one?" The woman then glanced at Du Jin with her eyes, and Si Qing noticed this move, so she explained in a gentle tone: "Sister Xinya, this is my boyfriend。。。。。。。。。。 Well, it should also be said that my fiancé, don't care about him, what Major Zhao needs this time is also made by Du Jin, his ability is no worse than those who boast about it, and there is no need to compare. ”

"Okay, you Xiaoqing, you will make a private decision for life without making a sound, that's it, and then I will help you check it, it is your father。。。。。。。。。。。。。。。 Alas, forget it, don't think about it yet, the situation will get better, people will always change. ”

"Uh-huh。。。。。。。。。。。。。。。。。。" Then the woman straightened up again, the smile and gentleness on her face were replaced by a serious "businesslike face", and then she said, "Now that you two are ready, let's go!" When Du Jin followed Si Qing out of the lounge, he found that the library that was originally full of people now seemed a little empty and silent, and there were very few people coming and going, although there were still a lot of people sitting in the borrowing area in the center of the hall

"Student", but Du Jin felt very unfamiliar, especially one of the bearded uncles sitting at the table reading a philosophy book, Du Jin felt a little speechless and funny: "Please, uncle, I'm afraid your student behavior is not very similar to your temperament。。。。。。。。。。。。。。。。 "Spit and complain, but he can clearly perceive that this time the security level has risen by more than one level compared to before, this is what Du Jin is most willing to see, although Du Jin has a bug of crossing and super recovery ability, as long as it is not an injury and attack that dies on the spot, it can be treated in the blood seal world, and even lighter injuries can be recovered directly through his own self-healing ability, he has tried before, after cutting his skin with a sharp object, the process of scarring was completed within a minute, In a few minutes, the wound from previous times would have become a relatively superficial scar.

Although this recovery speed sounds like no big deal, it is said that Du Jin's strongest body reorganization ability, whether it is wounds, bleeding or organ damage, the regeneration rate of his own cells is very fast, and the connotation of self-healing power In addition to the immunity against pathogenic microorganisms, there are also rejection ability, repair ability, endocrine regulation ability, and stress ability, including the continuation of broken bones, the self-repair or regeneration of mucous membranes, and the healing of skin and muscles and soft tissues.

In its simplest example, the virus develops resistance to antibiotics and survives the onslaught of antibiotics, which is typical of the lowest level of self-healing. Humans recover by significantly enhancing stem cell function and then relying on their own ability to kill tumor cells, which is a typical ......manifestation of high levels of self-healing.

。。。。。。。。。。 If these aspects were taken into account, Du Jin would definitely be regarded as a new human now, not to mention that the enhanced physical fitness he had seen was much stronger than that of ordinary humans.

。。。。。。。。。。。。。。 In short, Du Jin still hopes that the environment he is in is as safe as possible, even if he has more life-saving means, but when he is injured, he will rely on himself to bear the pain, Du Jin has a deep understanding in this regard, not to mention anything else, the sense of near-death really makes him unforgettable, if he does it again, he doesn't know if he can hold on.

After leaving the library, Du Jin keenly discovered that the direction led by the woman was not the school gate, but a training ground specially used for training and special driving: "Huh? Don't take the car? Could it be some secret underground transportation network, or an airplane or something? Forget it, I was almost killed by that agent of country M last time by relying on the convoy, no matter what, it is much safer than the regular convoy. After a while, Du Jin confirmed his guess, a helicopter and two heavily armed soldiers appeared on the tarmac next to the training ground, and when he saw the military helicopter, his first reaction was to consider whether this helicopter was too conspicuous in Wanglong City, and it would not be more dangerous than the convoy at that time, if he was on the ground, he still had a chance to escape, but if it was a plane crash, not to mention the risk of a high-altitude crash, if there was an explosion in the future, it would be the most deadly, and Si Qing wanted to be with him, Du Jin could cross, but Si Qing couldn't.

Si Qing naturally found Du Jin's frowning brows, she naturally knew the reason why Du Jin frowned at this time, after all, Du Jin was almost killed by a halfway attack not long ago, although there would be no PTSD, but worry was inevitable, so she gently grabbed Du Jin's arm and comforted: "It's okay, Xiaojin, this time the security is very thorough, and there will be no last situation." Du Jin nodded, followed the woman and Si Qing to sit in the passenger cabin of the helicopter, and after pulling the hatch and putting on the soundproof headphones, the propeller began to rotate, and the entire cabin began to vibrate, and a quarter of an hour later, a centrifugal force and a sense of levitation told Du Jin that he had taken off, but what made him strange was that this was the same as the helicopter he had affected before

The "noise" is a little different, although it is not nothing, but now he has found very intuitively that the helicopter does not seem to make a loud noise.

Generally speaking, the noise of helicopter flight mainly comes from three sources:1.

The sound of the rotor breaking through the air is the biggest source of noise. It's like the whoosh sound you make when you swing a stick, except that the rotors of a helicopter are long and fast, and there are several sets.

The magnitude of the breaking sound mainly depends on the air resistance, and the drag is mainly the induced drag of the rotor, which is caused by the angle of attack of the wing surface, that is, the larger the pitch, the greater the noise, and then the wingtip vortex, the high-speed movement of the rotor tip will produce the wingtip vortex, which will vibrate on the following propellers, resulting in noise.

The second point is the operating noise of the engine itself, which should not be said much, the vibration and exhaust pulse of the reciprocating motion of the piston machine, as well as the opening and closing of valves, gears and chains, is simply a symphony scene, if you listen to the model aircraft oil straight, and some light helicopters that are still using piston machines, the noise of the engine even overshadows the sound of the rotor breaking the air, fortunately, it has now been replaced by a large number of turboshaft engines, the noise of turboshaft engines is mainly bearings and gears, relatively quiet.

The third is naturally the tail rotor noise, the size of the tail rotor is not small, the speed is also high, and it will also produce the sound of breaking the air, and then the rest is some operational skills, such as level flight, acceleration is quieter than deceleration, and direct flight is quieter than turning.

When descending, a straight flight is quieter than a turn, and a steep descent is quieter than a gentle descent. When it comes to deceleration, level flight deceleration is quieter than deceleration in a descent, or deceleration in turns.

When encountering a turn, it is particularly slow down to turn, and it is quieter to turn from the forward propeller than to the forward propeller.

Smooth and gentle operation is quieter than fast and rough operation. As for the method of reducing noise, Du Jin also has some understanding, five-blade rotor, five-blade tail rotor, which is consistent with the noise reduction principle of submarine propellers, odd number of blades, because the blades are completely symmetrical, there will be two blades across the fuselage at the same time, so that the following two situations will occur: 1.

Noise intensity doubled: 2. The noise is less frequent and travels farther, so the most straightforward way to avoid this is to make the number of blades an odd number, which, of course, adds weight and sacrifices some performance.

Or it is the special type of wing tip, that is, the wing tip shape is swept back, downward, the wing tip sweep angle is a more popular noise reduction measure, the wing tip is the largest part of the linear speed, the speed is large, the drag will soar, the previous said that the drag is the source of noise, so most of the rotor noise of the helicopter comes from the outer ring of the rotor, and the sweep angle can effectively reduce the air resistance and reduce the noise.

Another common method is to add adjustment tabs, that is, the blade tail that protrudes from the rear edge of the rotor, to increase the adjustment tabs.

It is the piece protruding from the rear edge of the rotor, and the principle of this adjustment is that the piece is driven by piezoelectric ceramics, which can change the instantaneous lift coefficient of the blade.

, let the propeller swing, and actively avoid the wingtip vortex of the previous propeller, so as to achieve the purpose of noise reduction.

Of course, what method is used, you need to observe it closely, it is best to get the prototype design or structure drawing of the model, Du Jin is just guessing, but he doesn't mind knowing some in advance, and then get a similar technical expansion in the world of blood seals, anyway, Du Jin is worried about one point: the noise problem seems to have been solved, and he is not airsick, looking out the window at the scenery and the city, more than ten minutes later, the helicopter landed on the tarmac in a military camp on the outskirts of the city, but he does not need to leave the cabin.

The tarmac shook slightly, and then began to take the helicopter to start descending slowly, a few minutes later, the dim descent passage was replaced by bright and even somewhat dazzling lights, fortunately, it was not difficult for Du Jin to adapt to this change, after leaving the plane, the lady who was called Xinya by Si Qing took Du Jin and Si Qing to a living room, and let the two wait for a while.

A few minutes later, an officer in formal clothes pushed open the door of the living room and walked in, Si Qing was the first to stand up, Du Jin also got up, and the officer was the first to speak: "Captain Si, Mr. Du, you have worked hard for a trip, please forgive us for not having time to explain too much, now there are some special circumstances, and we need to immediately try whether the adaptability of the program is reliable." Si Qing thought for a moment and said, "Major Zhao, it's the unmanned reconnaissance aircraft of country M that has appeared again. Major Zhao nodded, indicating that he had guessed about Si Qing

"Approval", but didn't say anything, but let the three researchers wearing white research methods behind him take the computer in Du Jin's hand and the USB flash drive for recording program code, and then the two followed Major Zhao's guidance, passed through several isolation doors for biometric identification and manual verification, and finally came to a huge command room, and through the observation window in the center of the command room, you can see a silver-gray drone quietly parked there.

"This is the prototype of the Thunder?" Du Jin asked Si Qing with some curiosity, Si Qing looked at it and replied: "It should be an improved model made later, after all, the prototype is only a mothballed model for backup, and the actual combat mission will generally not be used." ”

"Oooh!" 。。。。。。。。。。。。。。。。。。。。。。 Just when the two were waiting in the command hall, in a technical room opposite the command hall, more than a dozen researchers were in full swing on their respective test benches debugging various data and parameters, one of the technicians after debugging a set of parameters helplessly to the front anxiously waiting boss said: "Director, the data of the No. 7 test group still cannot be adapted to the main system, and there are many bugs in function adjustment, and it takes too long to fix." ”

"It's definitely too late to repair now, and it's about to carry out the external drive mission." A researcher on the side said, from the center of his head

Judging from the "dry" Mediterranean, he is undoubtedly a strong man in technology.

"Who said no, the section chief let the relevant personnel of other departments and even other units participate in the adaptation and adjustment work, which is unreasonable in itself, relying on problem fragments to write and modify, and there is no way to match and adjust with the main system in real time, if anyone can write it, I will not go home for three years to live in the research center."

"Ahem, no wonder you've been here for so long, I think it's your unforgiving mouth."

"Harm! I'm not telling the truth, and you're not the same, aren't you? My Dr. Hui! ”

"You 。。。。。。。。。。。。。。。。。。。"

"That's it! Be quiet! The director in front of him interrupted the conversation of several technicians at the right time, and looked at the constantly crowded figures in the command room opposite, and he couldn't help but say bitterly: "Section Chief naturally has his own considerations, brainstorming is the way to quickly solve the problem, instead of complaining here, then quickly find a way to adjust and adapt to the procedures that had problems before, now."

The "Thunder Dragon" is about to start carrying out the external drive mission, and you are embarrassed to shout here. ”

"But the director。。。。。。。。。。。。。。。。 We have tried our best, after all, these new problems can only be solved by practice, completely beyond our expectations, if we are given a few days we will work overtime without sleeping, but now it is only ten minutes, it is really 。。。。。。。。。。。。。。。。。。。 Listening to the technician's helpless defense, the director opened his mouth but didn't say anything, after all, he was also involved in the programming, naturally knew that theory and practice are two concepts, and now there is a problem to fix in such a short period of time, it is indeed more difficult, then he suddenly thought of the report of the laboratory just now, so he had a glimmer of hope in his heart and said: "There is still a chance, just now the laboratory said that there is a new debugging version, and when the safety inspection and integrity comparison are completed, it will be sent here, At that time, it is really impossible to shield the sonar detection and some other unnecessary functions of the Thunder, and reduce the load on the system as much as possible, everything is mainly on this mission. ”、

"Is it an adaptation system designed by other scientific research units based on fragments? Alas! I hope it's really useful.,Don't thank God for more questions from the previous few tests.,By the way, director,Which predecessor designed the program.,Let's have a psychological preparation.,It also takes time to block other functional modules.,It seems that we have to prepare for both.。 ”

"The writer is。。。。。。。。。 It's Captain Si Qingsi of the Technical Department of the 176 Tank Brigade Brigade, and uh。。。。。。。。。。。。 Du Jin, an undergraduate student at the Xia National Defense Military Academy. The director looked at the list in his hand, and read it out helplessly, and the reaction of the remaining technicians was even more pessimistic, after all, even those network technology experts and system research and development experts of the Academy of Sciences could not write a fully adapted program for adaptation, a brigade-level technical officer, and an undergraduate.

。。。。。。。。。。。。。。。。。。。。 No matter how you think about it, there is little hope, it can only be said to be a psychological comfort, maybe it can?

But the odds are a bit subtle. At this time, the electric door of the technical room slid open, and a scientific researcher walked into a safe box handed to the director, and left quickly after the director signed the information form, without a trace of stopping, in fact, you don't need to ask this scientific researcher to guess that Xiaolong has not completely solved the problem of adaptation, after all, the scope of the technical room and the expressions on the faces of those technicians can be seen from this, even the director of the technical room is gloomy.

The brow is not furrowed.

"Come on!" After all, as the direct technical management group of the Thunder Dragon project, if the Thunder has problems and cannot lift off to perform the task, or if there are major problems in the process of the mission, then the future of these people can only be said to be very slim and dark.

Looking at the safe box in his hand, the director opened it and took out the storage USB flash drive printed with the audit standards of the laboratory department, and handed it to the technician closest to him helplessly.

The technician also had a similar idea, he inserted the USB flash drive into the designated security data port, and at the same time glanced up at the other technicians, only to see that the rest of the people were busy with the function shielding thing with their heads down, and the function shielding means the lack of performance, although it can pass this

The method of "demolishing the east wall and making up the west wall" reduces the load of the system and improves the fault tolerance rate of the main functions, but after all, it is a lot less functional, if it really encounters some relatively rare situations, then the fate of the dragon is a little difficult to say, after all, battlefield reconnaissance is not a test simulation can be compared, and the problems that arise are complex environments, many of which can not be predicted artificially.

But as the technician moved the program and code instructions in the USB flash drive into the main system, the imaginary incompatibility error did not appear, and the execution table line has been running, without any error, everything seems to be natural, which makes the technician who is already more strict with the program a little dumbfounded, to be honest, this kind of textbook-level process operation, he has definitely not seen a few times, a few times.

。。。。。。。。。。。 It's also in textbooks and training videos. The director, who was waiting for the technician next to him to complain and wail as before, found that the voice he imagined did not appear, and a trace of surprise flashed in his heart, and he immediately opened his eyes and approached the technician and asked, "How is the situation?" How much can it fit? Is it possible to run the basic data rows? ”