Open an aircraft carrier to fight against Japan

Lin Yuan is right. Although the fish mine is very powerful, its use is not very simple, because the fish mine needs to travel a considerable distance without being controlled by anyone.

This kind of unmanned navigation is similar to drone navigation, but it is much more difficult than drones, because fish mines navigate in water, and water currents have a greater impact on fish mines than wind has on drones. There are many, so fish mines can easily fail halfway.

Water bodies also have a huge impact on remote-controlled fish mines. UAVs can use electromagnetic waves to remotely control them. Electromagnetic waves travel at the speed of light with almost no delay. Water is a poor conductor of electromagnetic waves. It is impossible for operators to use electromagnetic waves to remotely control fish mines in water. , if you want to remotely control fish mines, you can only use sound waves.

The propagation speed of sound waves in water is much slower than the speed of light, so the operator will have a long delay in controlling the torpedo, and the seabed is full of reefs, unlike the sky where there is nothing, when the torpedo meets the reef and wants to turn At that time, maybe the torpedoes had hit the rocks, and the control signal was only halfway there.

In addition to the limitation of propagation speed, the intensity of sound waves is also limited. Therefore, the use of fish mines is quite difficult. Even China at this time has not fully mastered the technology of fish mines.

Lei Yun frowned and said, "We don't even have the technology that China has mastered. Could it be that the British or Americans have mastered it?"

Lin Yuan's complexion changed, and he said, "No, it's impossible for them to master it. The mid-section control technology of fish mines is really too complicated."

Lei Yun asked suspiciously: "You just said that what they use are fish mines, and now you say that they can't master the technology of fish mines. Isn't that contradictory?"

Lin Yuan thought for a while and said, "Unless these fish mines were launched last night, they have been floating in the water all day long, so there is no contradiction."

Lei Yun showed surprise and said, "You mean, these fish mines were launched by those high-speed ships last night?"

Lin Yuan said solemnly: "That's right! Everything can be explained in this way! When they launched fish mines last night, they originally intended to use them as torpedoes, but none of them hit, so they stayed in the water and became Mine, I guess the purpose of those high-speed target ships is to get close to the port and launch these fish mines."

"If the fish mines can sail into the port, it is best to blow up our warships. If they fail to blow up our warships, they will turn into sea mines and float around the port, causing fatal damage to our ships leaving the port."

Lei Yun nodded in surprise, and Lin Yuan continued: "The enemy ship was wiped out by us when it was 62 kilometers away from the port last night, so their fish mines did not rush into the port, but floated outside the port. Hit by Jubao."

Lei Yun thought for a while, and said: "If what you said is true, then there are many such fish and sea mines outside the port. Wouldn't it be very dangerous for us to enter and leave the port in the future?"

Lin Yuan smiled and said, "There should be no danger." After Lin Yuan finished speaking, he glanced at Sun Yuncheng and said with a smile, "You should have a way to deal with the mines, right?"

Sun Yuncheng hesitated for a while, and Lei Yun said displeasedly: "Didn't you equip your port defense department with minesweepers? Why, can't you get rid of those mines?"

Sun Yuncheng said hesitantly: "That's right, we have mine-sweeping boats that can clear all the mines on the waterway, but there are some difficulties in completing this mine-sweeping mission."

Lei Yun asked in a deep voice: "What is the difficulty? Tell me."

Sun Yuncheng replied: "The biggest difficulty is that the scope of mine clearance is too large. Last night, the enemy ship launched fish mines [-] kilometers away from the port. These fish mines may be distributed in a huge circle. Coupled with the current The role of this circle is even bigger.”

Lei Yun agreed with a "huh" and said, "You are right, this is indeed a difficulty. Is there any way to overcome this difficulty?"

Sun Yuncheng thought for a while and said, "There should be a way to overcome it, let's try to overcome it."

Lei Yun said: "Okay, go back and get ready, Lin Shuai and I are waiting for news of your victory."

Sun Yuncheng saluted with a "snap" and turned to leave when Lin Yuan suddenly said, "Wait a minute!"

Sun Yuncheng was taken aback for a moment, and asked, "What orders does Commander Lin have?"

Lin Yuan thought for a while and said, "Have you seen the enemy's mines before?"

"Report to Commander Lin, we have seen that we have seized the enemy's mines." Sun Yuncheng replied loudly.

"Very good, then do you know what fuze the enemy's mines use?" Lin Yuan asked, and Sun Yuncheng replied confidently: "Of course I know, the enemy's mines all use trigger fuzes."

Lin Yuan's face changed slightly, and he said: "The enemy used to use trigger fuzes, but this time they may use other fuzes, such as sound fuzes, so after you find a mine, you must handle it carefully. If you can get the mine, try to get it, this thing has a high research value."

Sun Yuncheng agreed, said goodbye, went back to the port defense department, and immediately organized the minesweepers to go to sea. The next morning, four minesweepers set off from the port and headed for the waters outside the port.

Although the minesweeper is named "boat", it has a displacement of 2000 tons. It is equipped with a 150mm dual-mounted naval gun, an anti-submarine helicopter, a bow sonar, and a towed array sonar placed inside the hull. It will be released when it is used.

In the vast sea, a mine is just an inconspicuous point. Finding a mine in the sea is no different from finding a needle in the sea. Although the minesweeper is equipped with sonar, the echo of the mine is extremely powerful in the vast sea. Hard to find.

Sun Yuncheng can only lead the fleet of minesweepers to search the sea, and at the same time take off helicopters to use magnetic detectors to detect mines.

More than five hours passed, and soon it was lunch time. Sun Yuncheng and his minesweeper formation found nothing. He remembered Lin Yuan's entrustment to him, and couldn't help feeling guilty. At this moment, the sonar operation room sent a message: " In the northeast sea area, the echo of a suspected mine was found."

Sun Yuncheng hurriedly grabbed the communicator and said, "Report the specific position and distance immediately."

The sonar control room sent specific location information. Sun Yuncheng immediately contacted the helicopter in the air and passed the location information to the helicopter. According to the reconnaissance, the probability that the unknown object is a mine is 70.00%.”

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