【Chapter 185】Elevation follows
The "Fierce Dragon" successfully interfered with the WoI-7w unmanned reconnaissance aircraft of the M Army and caused it to crash to the sea level. The Xia Army immediately called Major Zhao, and Major Zhao replied very calmly. :"Yes, this is
One of the improved parts of "Fierce Dragon" can simulate the input signal of the drone so that it can be controlled by the drone for a short time.
"Fierce Dragon" simulated signal control......Yes, after all, the party at fault for invading my country's territorial waters this time is the m side. I think this is a slightly drastic countermeasure. It's not serious, eh..................Okay, I'll adjust. "Du Jin seemed to hear something unusual from the sidelines.
He was not surprised by the words of "agreement". After all, there are many angles and directions to consider at the national level. It is understandable to expel the intruded sea area for reconnaissance, but if the woI-7w unmanned reconnaissance aircraft is directly shot down , then Country M naturally cannot leave any room, and would rather rely on diplomatic risks to ensure that Xia Country cannot obtain the remains of the woI-7w unmanned reconnaissance aircraft for research and reverse replication.
At this time, Xiao Ai suddenly said to Du Jin: "Master, I was there
A medium-sized underwater ship belonging to country M was discovered near the "Fierce Dragon". Its design was very poor and it seemed to be called a submarine. "
"Submarine?" Du Jin immediately felt that things had turned around. He immediately asked, "Xiao Ai, where did you get this information? Is this submarine a conventional attack submarine or a nuclear-powered submarine?" He almost immediately ruled out that it was a submarine. pass
The "Fierce Dragon" discovered the possibility of a submarine. After all, submarines are difficult to detect by radar and visible light. Even sonar is not free. After all, it is really difficult to distinguish between schools of fish and submarines most of the time. Now the mainstream The other method is to use anti-submarine helicopters for close observation.
In fact, anti-submarine warfare is the most complex type of high-tech warfare. It requires the comprehensive cooperation of all branches of the navy and cannot rely solely on anti-submarine aircraft. Under normal circumstances, anti-submarine aircraft are only suitable for survey and deterrence in large-scale sea areas.
The process is roughly as follows: First, delineate the reconnaissance sea area and route, and airdrop a sonobuoy at intervals along the set route. The airdrop density is calculated based on actual conditions. At the same time, airborne radar can be used to discover the periscope or snorkel of the submarine.
If necessary, a large number of anti-submarine buoys will need to be deployed in high-risk sea areas because sonar buoys can work actively and passively. Advanced digital sonar will feedback the detection situation to the sonar soldiers. If an abnormality is found, the anti-submarine buoy will return to the area where the buoy is located and press Triangulation involves dropping sonobuoys in large numbers and using magnetic field detectors to pinpoint the location of a submarine.
After positioning, depth bombs or anti-submarine torpedoes can be used to attack the submarine. Moreover, it can also recruit other anti-submarine units for support when its own ammunition or sonobuoys are insufficient.
The large-area search efficiency of aviation anti-submarine is high, but the capture success rate is low, and this really depends on luck. If the submarine is in a low-speed, quiet or even stationary state, it is difficult to detect, and modern submarines can even use ocean currents to float or sit on the bottom to use the seabed. The terrain avoids detection by active sonar and synthetic aperture radar. Generally, anti-submarine aircraft can only obtain some general information by dispatching more than a dozen sorties on average. Therefore, they still rely on the intelligence cooperation of surface ships, own submarines and submarine sonar arrays.
Therefore, Du Jin did not want to use it
"Fierce Dragon" came to tell the existence of this submarine. After thinking for a moment, he decided not to let the submarine leave without knowing its purpose. Of course, the main reason was that he was afraid that Major Zhao would be implicated. After all, the other party was... It was Du Jin's influence that made the decision to disrupt and cause the drone to crash. He did not regard Major Zhao as a disposable
"Tool man", this is inconsistent with Du Jin's nature, not to mention that Du Jin can now count on Major Zhao to inform the superiors to resolve Wen Song's matter. If the opportunity is delayed due to transfer, then Du Jin will really lose more than he gains.
Thinking of this, Du Jincai asked Xiao Ai: "Xiao Ai, can you let this submarine float through the military communication system of country M in a short time? Or let it send out some easy-to-capture signals? The premise is not to let that The people on the submarine discovered that this was a forged order." Since Du Jin couldn't let him
"Fierce Dragon" took the initiative to discover the existence of this submarine, so he would start with the submarine itself and let
"Fierce Dragon" passively discovered him. After all, submarines are the most difficult to accurately capture. The reason is because they are in the depths of the ocean, making radar almost useless. Even sonar can be detected by other marine creatures.
There is a chance of "covering up", but if it takes the initiative to surface, the submarine will be like a turtle with its shell removed, no different from a fishing boat without the ability to counterattack at close range.
"Master, ugh...... It's no problem to obtain the security certificate of m party through special means and give it to the submarine in this area. Just now Xiao Ai retrieved the specific m party in the designated area. The information sending and receiving source determines the name of this ship
The position of the underwater ship of the "submarine", but if it is to convey the information of the specified order, due to the speed limit of the communication technology in this world, Xiao Ai will take 2-3 minutes to process it, which is definitely not Xiao Ai himself. The ability is not enough”
"That means we can only convey some vague orders." Du Jin immediately understood what Xiao Ai meant. Xiao Ai is now like a computer with high U and low display. Even though her abilities far exceed those of the real world, Helplessly being restricted by the signal base of various basic equipment in reality, Du Jin had long been mentally prepared for this. After thinking about it for a while, he told Xiao Ai that he wanted to send a short signal.
.............................
"Oh, God, is there still no news from the Air Force?" A sailor looking at the operation console in the Fillmore submarine complained. They can now be in the waters of Xia Kingdom, although the Fillmore submarine they are on It is just a conventional torpedo boat modified from a scientific research submarine, but after all, it is also a combat boat belonging to the navy. If it stays for too long and is discovered by Xia's anti-submarine system, their fate will be very tragic, even if they are not caught. Xia Guo's counterattack was regarded as a blow to pieces. After the prisoners were captured, according to the behavior of M Country, they would be described as defecting soldiers. It was almost impossible to get bail and return to the country.
"Hey, Birrell, don't be so nervous. Our mission is not to fight with Xia's navy. After completing the recovery assistance mission, we can dive to a deep enough depth to leave. Even if those in the air force fail, we will not risk."
"But..." A sailor on the other side of the console stood up, stretched, and casually dismissed the sailor's words and said: "My brother, you will only make yourself so nervous. Your fear of the deep sea has intensified. Think about the allowance for our trip back, and think more about which girl will be the most valuable to spend your money on in the future. Now that you have considered so many things, you..." He Before he finished speaking, the indicator light flashed on the console. This was the application process for external signal access.
"Haha, look, I said we won't wait too long. Birrell, go call the first mate and I'll verify it."
"Okay." Then the remaining soldier sat down to review the source, key and security code of the signal. Although he seemed a little frivolous and careless, he was very meticulous and conscientious in his work, but he was destined not to What will you find? After all, the key attached by Xiao Ai is not forged, but indeed obtained from the naval command system of country m, but it is not through the formal approval process... .... A moment later, a man in a white military uniform followed Private Birrell into the intelligence cabin. At this time, the sailor had already completed the approval and handed the printed order message to the sailor. It was in the hands of a man who obviously had a high military rank. The man lowered his head and glanced: "Target accomplished, recover, evacuate, avoid encounter, 172-584-74." The officer's eyes narrowed slightly. This order seemed a bit unruly to him. After all, even the company The details of the mission were not shown, only the results and process were explained, but he just felt a little strange and did not suspect anything. After all, the order had passed layers of security checks. If this could be faked, then the other party would be completely Based on the identified acoustic characteristics of the submarine, you can directly launch submarine-launched missiles to send yourself to the sky, instead of playing word games here, not to mention that you are now in the territorial waters of Xia State. This officer can also understand that in order to avoid long-term and large-capacity The signal transmission was discovered by Xia Guo, so it is understandable that it was specially simplified.
Subsequently, this order report was handed over to the captain of the submarine through the hands of the first mate, that is, the person in charge. The captain with a vicissitudes of life and a serious expression on his face looked at the contents of the order, and finally executed it absolutely, but he After all, he is a naval officer with more than ten years of experience and qualifications. He did not float directly to a position close to the water recklessly. Instead, he ordered: "Go to target 172-584-74. After arriving, float up 300 meters and first release the detection robot." Detection to ensure that there are no surface ships ambushing. If there is no problem, float to 50 meters below the sea level and use the periscope system to ensure that no attack helicopters appear! Finally, go to the surface to launch radar detection, quickly recover the target and detect nearby incoming traffic. Attack enemy aircraft." As an underwater giant, submarine equipment has to travel in the depths of the world's oceans for a long time and is highly airtight. Without a complete detection and sensing system, it would be completely useless.
The "underwater blind" is simply unable to detect, search, and track underwater and water targets, or even avoid danger and launch attacks. To this end, submarines make comprehensive use of periscopes, sonar, radar and other detection equipment. Periscopes are the earliest One of the observation equipment used on submarines.
This equipment was almost installed on submarines not long after that. The early periscopes only had optical observation functions. That is, they used the principle of optical reflection to install lenses at both ends of a long tube. The upper lenses reflected the facing images downward; the bottom lenses The mirror reflects the reflected image for a second time, and the observer can see the image in the direction in which the upper mirror is aligned through the bottom reflector. The periscope of modern submarines is electronic, with cameras and cables replacing the light path. Visible light can also observe infrared rays. There is an antenna on the mirror for communication and detection of enemy radar signals, and the size has also been reduced a lot.
If the periscope cannot be used, it is necessary to mainly use sonar, the most familiar system, to detect various underwater targets. It is a method that uses the propagation characteristics of sound waves underwater to complete underwater detection through electro-acoustic conversion and information processing. and electronic equipment for communication tasks.
Sonar systems can be roughly divided into two types: active sonar and passive sonar: active sonar can emit sound signals by itself, and use the changes in the signal reflected back after encountering an object to calculate the relative orientation and distance of the object; passive sonar Na is actually a listening device that does not emit any sound signals, but only receives various sound signals from the surroundings to judge and identify different objects.
Of course, if the difference between the two is easy to understand, relatively speaking, the former is easy to expose one's whereabouts, while the latter is easier to hide. There is even a risk of accidental collision when two silent mode submarines meet. Of course, this risk is generally relatively small. Low, unless it's a submarine swarm.
In addition to periscopes and sonar, submarines can also use radar and other electronic equipment to conduct target reconnaissance. Radar can detect sea surface targets in periscope state, mainly providing target data for torpedo or submarine missile attacks, and can also be used for navigation and sea search.
Compared with periscopes, submarine radar has the advantages of high ranging accuracy, long detection range, short measurement time, and can work all-weather.
However, the radar works in active mode, and the antenna needs to be raised to a certain height above the sea surface, which has a greater impact on the submarine's concealment, and the timing of use must be strictly controlled.
It has to be said that this captain is definitely a veteran. If it is a general ambush, there is no way to deceive him. Even if the order is forged in a special way, he will be discovered by his careful deployment in advance, but it is a pity. Yes, his measures had no impact on Du Jin. After all, Du Jin's goal was not to sink the submarine, but to make it
It is enough for "Fierce Dragon" to discover the submarine through detection. In this way, Major Zhao will not only not be affected by his previous actions, but will even accumulate an unexpected tool. This is another way for Du Jin to thank him for helping him. A gift......................
"Sir, the sonar and detection robot have not found the target. They are ascending. No target has been found at periscope number 3... It has reached 20 meters below sea level. Meter depth, sir, are you ready to activate the radar to detect enemy aircraft?" Just after the radar detection device was deployed, the sailor from the intelligence cabin hurried to the cab door and knocked on the closed sealed hatch. It seemed that there was something very urgent. The first mate asked the soldiers on the side to be more alert, and then sent an adjutant to open the door. As soon as the sealed hatch was opened, the sailor shouted: "Captain, what's the share?" The order was fake and we were fooled!!!”
"What is fake?!" the captain asked a little loudly, and then immediately stepped forward and snatched the order sheet from the other party's hand and saw: "Mission failed, immediately go to area 172-584-65 to recover our unused items." Man and machine, evacuate immediately after completion!”
"Damn it! Dive immediately, dive quickly!" After reading the above text, the captain immediately shouted to the operator on the side. If an anti-submarine missile was launched at this time, their submarine would be hit 100%. After all, the speed of diving is definitely not as fast as the instantaneous shock wave when the missile hits.
And at this time
"Fierce Dragon" has already collected all of this submarine
"In his eyes", the submarine's specifications, data and parameters were all detected. When the captain discovered an abnormality and made an emergency dive, he directly controlled the submarine.
The Xiaguo Air Force, where the "Fierce Dragon" conducted the observation, has confirmed with the navy that there are no friendly submarines sailing in that area, and there are no authorized submarines operating in the area. It can be determined that it is an invasion by an enemy submarine, and since then
Judging from the high-definition detection images returned by the "Fierce Dragon", there may be equipment similar to torpedo launchers on the submarine.
At this time, Major Zhao, who was with Du Jin, received another call, but the content was completely different from the slightly reprimanding words just now. After confirming the correctness and decisiveness of his previous decision, he hung up the phone and accepted the special signal in his hand. Handing it to the adjutant, Major Zhao looked at Du Jin with a rare smile on his tense face. He didn't know that the submarine was observed by Du Jin making it float, but in his consciousness , without Du Jin's previous persuasion, Major Zhao might not have made the decision to control the enemy drone, but now, he obviously made the right bet.
"Comrade Du Jin, thank you for your suggestion just now. Don't worry! Regarding the theft of your technical paper, I will discuss it later.
After the final mission of the "Fierce Dragon" is over, I will immediately set off to go to the upper level to respond in person. I will notify Captain Si as soon as there is news. Please rest assured! "Du Jin nodded with a smile. Si Qing on the side seemed to have guessed something, but she couldn't figure out how Du Jin got involved in this matter, even though Si Qing's sixth sense strongly suggested
"Du Jin is the main reason why this submarine was discovered by us." But she had no choice but to not know Xiao Ai's existence, so it was naturally impossible to guess the process. But when she heard Major Zhao solemnly promise to herself and Du Jin again, Instead of being a little uncertain like before
"Hint", which also made her relax. The subsequent recovery of the wreckage is still a matter of Xia State's diplomacy and has nothing to do with the research institute where Du Jin works.
After the "Fierce Dragon" dispatched fighter jets and unmanned attack aircraft from the Air Force, it completed its mission and began to return. Si Qing and Du Jin were also sent back to school by special personnel, but before leaving, Du Jin also added to Major Zhao He said: "By the way, Major Zhao, I have nothing to say about that technology. In addition to complete experimental preparations, I already have a certain practical basis for large-scale mass production. I hope you can convey it to me." .”
"Large-scale mass production?!" This surprised Major Zhao. After all, experimental preparation and large-scale mass production are not on the same level. To be precise, small trials refer to preliminary experiments based on the theoretical research results of the laboratory. Scale-up refers to production under laboratory conditions. Pilot-scale production is carried out in order to industrialize research results, reduce transformation risks, and improve transformation rates.
When Du Jin refers to mass production, he refers to small-batch trial production. Except for scale, other conditions are basically the same as normal production. It is a necessary transition link from small-scale experiments, pilot trials to industrial production.
In fact, before the small test was carried out, theoretical research in the laboratory had already been carried out, that is, the reaction was verified using containers and tools such as beakers, measuring cups, heating vessels, and glass rods.
The small trial is a preliminary enlargement based on the theory. Its main responsibility is to complete continuous production. From feeding to transferring to collecting, it is a complete continuous process.
The pilot test is a confirmatory test conducted on the premise of the success of the small test. It mainly verifies the feasibility of the material transportation method, the corrosion resistance of the equipment and pipeline materials, the recyclability of raw materials and solvents, etc. In addition to different scales, it The biggest difference from the small test is that the sources of raw materials are different. One is chemical reagents and the other is industrial-grade raw materials. After all, the former is very expensive and difficult to synthesize. It focuses on performance, tolerance, and stability, while industrial raw materials are based on cost. as the primary consideration.
As for what Du Jin said, the difference between large-scale production and mass production is still very big. At the mass production stage, the problems to be solved are mainly marketization issues, that is, production efficiency issues, energy consumption issues, recycling and recycling of three wastes Solve problems and ensure safe production.
In addition to the different scale, the biggest difference between it and the pilot test is that the focus of the problems to be solved is different. One is technical and the other is economic. Of course, economic problems may also include technical solutions. The problem.
Although Du Jin can definitely find the technology for rapid mass production in the information and blueprints provided by Xiao Ai, the market and economic factors prevent him from taking it out too directly. Even if Xiao Ai can fully control the Blue Star Almost more than 90% of the financial management system, but the impact of this kind of control is probably not much smaller than that of nuclear war, so Du Jin is still prepared to seek stability and gradual progress......
"I understand! I will convey the exact words of this sentence!" Du Jin nodded, and then followed Si Qing. Just as Du Jin and Si Qing were sitting on their seats to send them back, a phone call came from Si Qing's cell phone rang, and when she saw the number, she had a look of disgust and helplessness on her face. Her fingers were hovering above the screen, but she hesitated to click on it, as if the call was a reminder. Likewise, Du Jin seemed to have guessed something when he saw Si Qing's unusual reaction.
