Open an aircraft carrier to fight against Japan

Lin Yuan went on to say: "Now it seems that there are two reasons for the sinking. One is from itself, such as the explosion of the loaded missile; the other is from the outside, such as hitting a rock, encountering military strikes, etc. I am more inclined to sink. The most likely reason is that the missile exploded, so the focus of our next work is to salvage the sunken ship, find evidence, and determine whether the missile explosion caused the sinking of the Wanli Jingtao."

Xu Siyuan said: "If you want to salvage a sunken ship, you need to know where it sank, but the sea is so big, how can we know where it sank? But it is a piece of cake to know where it sank. Very difficult thing."

Lin Yuan said: "Yes, this matter is indeed very difficult, but no matter how difficult it is, there is always a solution. Let's take the chart and let's analyze where it may have sunk."

Xu Siyuan then asked someone to open an electronic chart on the big screen, and Lin Yuan said, "Let's mark the location where we lost contact first."

At this time, an officer typed on the computer for a while, and then a red dot appeared on the chart. The officer said: "Shuai Lin, this is the last reported position of the Wanli Jingtao. Our positioning error is 300 meters. Now we draw a circle with this point as the center and a radius of 300 meters, and the Wanli Jingtao may be inside this circle."

After the officer finished speaking, he drew a circle on the chart, and Lin Yuan continued, "Where is the place where Qian Wanghai was found?"

The officer drew another circle on the chart and said, "This is right here." Lin Yuan continued, "What was the wind speed last night, and the ocean current speed? Let's assume that Qian Wanghai entered the water when the transport ship sank. Calculate the possible location of Qian Wanghai based on these two data."

The officer was stunned for a moment and said: "But there are waves on the sea. When he floats on the sea, he will definitely be affected by the waves. That is to say, his speed will definitely not be the superposition of ocean current speed and wind speed, and the wind speed The speed is not constant, so the calculation will have a large error."

Lin Yuan said: "Don't consider those things first, just take the water surface as still water and calculate it."

The officer said: "I understand." So he operated on the computer for a while, and then marked a point on the chart, the officer said: "This is the position where Qian Wanghai enters the water without considering all complicated situations."

Lin Yuan said: "Determine the coordinates of this point, then draw a circle with this point as the center and a radius of [-] kilometers, no, [-] kilometers, and then use the same radius to draw a circle at the lost contact position." circle, take the intersection of these two circles, and the Wanli Jingtao should sink in this intersection."

Xu Siyuan said: "Shuai Lin, is our next step going to search the seabed in this intersection?"

Lin Yuan said: "There is no other way now, but this is the only way."

Xu Siyuan said: "But Lin Shuai, the area of ​​this intersection is nearly [-] square kilometers, and we still need to search the bottom of the sea. What means will we use to search?"

Lin Yuan said: "Let's send deep submersibles to search the seabed. On the seabed at a depth of more than 1000 meters, the detection method of visible light is useless, because it is already pitch black at 100 meters underwater, and sonar is not available." Fortunately, the only thing we can use is magnetic detection, the transport ship is made of steel and has a strong magnetic field, and the deep submersible will definitely be able to detect it."

Xu Siyuan agreed to come down, Lin Yuan looked at his watch, it was already past eight o'clock in the morning, and then said: "Okay, today's meeting will end here, everyone has been busy all night, go back and rest, the next thing will be done Much trickier."

At this time, Xu Siyuan came over and said, "As for the ship to go to sea, let's use the 'Xunhai' oceanographic survey ship. It can carry deep submersibles. When will we set off?"

The "Xunhai" oceanographic survey ship is an oceanographic survey ship, used to detect the hydrological and meteorological conditions of the ocean, which have a great impact on the naval operations. With a displacement of [-] tons, the ship is equipped with a variety of marine detection equipment, and even equipped with sonar detection equipment to detect the seabed.

However, the sonar detector on the cruiser can only be used to detect the topography of the seabed, and there is no way to find the sunken ship under the water. Although the size of the 150-ton ship is not small, it is more than 40 meters long and [-] meters wide. Compared with the seabed topography calculated in thousands of meters, it is simply a drop in the ocean, so the sonar detector is completely unable to find the sunken ship from the seabed.

After listening to Xu Siyuan's words, Lin Yuan said: "Everyone is already very tired, let's rest first, anyway, the ship has sunk for several hours, it is impossible to have any more survivors who need to be rescued, and we can't rule out the danger of thousands of miles. The Tao is likely to be sunk by the enemy, so we also need to wait for the warship to come back."

Xu Siyuan said: "Our two warships are sailing towards us, and they are expected to arrive at us at twelve noon."

Lin Yuan said: "Well, we will set off at one o'clock in the afternoon and tell the Patrol to prepare the deep-diving robot." After Lin Yuan finished speaking, everyone dismissed the meeting. Incoming message: "Report to Lin Shuai that the Japanese missed their appointment again."

Lin Yuan asked, "What's going on? Tell me in detail."

The Minister of Foreign Affairs said: "It is like this. Last night, the Japanese liaison officer came back and said that their train did not come yesterday because of a mechanical failure. They have repaired it and sent the train again at four o'clock in the morning today. But At four o'clock in the morning, they missed another appointment and the train still didn't show up."

Lin Yuan thought in his heart: "What are the Japanese doing this for?" So Lin Yuan asked: "Is there anything unusual about the Japanese army?"

The Minister of Foreign Affairs said: "According to reports from comrades in the army, the Ninth Division of the Japanese Army has no tendency to attack."

Lin Yuan said: "Okay, I understand, the little devil won't cry when he sees the coffin, I will rob them a few more big merchant ships, and let them know how powerful they are!"

Lin Yuan then contacted Yu Feng and asked him to hijack more merchant ships bound for Japan!Lin Yuan put down the communicator, and saw Xu Siyuan walking in with a middle-aged officer, and said, "Shuai Lin, this is the commander-in-chief of the submersible unit, He Rui, he wants to discuss with you about the submersible. .”

Lin Yuan hurriedly said: "So that's the case, then, please sit down."

The three sat down at the table, and He Rui said: "Shuai Lin, we have two kinds of deep submersibles here, one is manned and the other is unmanned. The manned one is more suitable for multi-tasking requirements. There are many things that can be done, but the underwater speed is relatively slow, like our manned deep submersible, the cruising speed is only one knot, while our unmanned deep submersible, the cruising speed can reach [-] knots."

Lin Yuan thought for a while and said: "Then bring them all, so that we can perform various tasks." He Rui agreed to come down and go back to prepare. At one o'clock in the afternoon, Lin Yuan came to the oceanographic survey ship Xun Hai and ordered Xun Hai to set off At this time, Vladivostok is still covered with ice, but the Xun Hai also has the ability to break ice. Its huge hull quickly broke through the sea ice and sailed towards the vast Sea of ​​Japan.