The Minister of the Navy glanced at the people around him and said in a heavy tone: "To say something from the heart, if I had to choose who would be the ruler between India and China, I would rather choose China." Of course, I would prefer that we, the United States, rule the whole world. You should understand what I mean, India is only suitable to be our thugs, our cannon fodder, and we must not allow them to have weapons that can threaten us. ”

……

With the approval of the big three, the United States sent submarines to harass China, and other senior officials did not oppose it again, because they were really not optimistic about how long India could support it, and they did not know if they could hold out until China acted out of anger.

China's meritorious submarine No. 031 was far away from the place of the incident, joined up with a giant ship near the equator, and then accompanied by the giant ship, and used two hours in the evening to quickly replenish torpedoes, fuel and daily necessities, and then quietly slid into the sea water and disappeared from the field of vision of the giant ship crew.

The submarine No. 031 did not immediately go north, but walked near the equator, on the one hand, to explore the seabed topography of the Indian Ocean and supplement the relevant nautical charts and hydrographic data. Although China has seized a lot of information from the wreckage of the Indian nuclear submarine, it is not complete, and those materials are not fully suitable for the use of the Type 031 submarine, and they still need to improve and supplement it themselves. On the other hand, it is here to wait for the Chinese fleet to come, to grasp the surrounding enemy situation before the fleet arrives, and after the fleet arrives, it will serve as the underwater escort of the fleet.

The sinking of the aircraft carrier "Matelaus" is already the past record of the submarine 031, and now the war between India and Pakistan has not ended, and it is not yet time to celebrate. They had to prepare for the battle that followed.

In fact, the submarine was in combat readiness from the moment it was launched and left the port. For them, it doesn't matter if the world is chaotic or calm. There are only two states for them, one is fighting and the other is preparing for battle.

Even during the Cold War, when the Soviet Union and the United States were in a tense confrontation, the slightest movement could lead to a war that would ruin the world, but the submarines of the two countries continued to hunt and counter-hunt under deep water, and there were also incidents of sinking each other's submarines, just because the other side could not produce evidence. It's all over, and they all grit their teeth and try to take advantage of the next round of hunting.

No, the No. 031 submarine had not been cruising in the Indian Ocean for many days after completing its replenishment, and while waiting for the arrival of the Chinese fleet while exploring the topography of the seabed, the sonar non-commissioned officer suddenly reported: "An unknown submarine has been discovered, with an azimuth of 281 degrees, and the other numbers are being explored." ”

At the beginning, neither Ma Yanshu, who was in the command post, nor the deputy captain next to him, nor Captain Jiang Haitao didn't care. After all, the Indian Ocean is so big, it's normal for submarines to come and go. It's a bit strange that there are no submarines. Besides, the sonar of the Project 031 submarine uses the latest Chinese technology. Its detection range is much larger than that of other submarines, and the maximum distance of towed passive sonar can exceed 80 nautical miles, while the detection range of the bow nose sonar detector is more than 50 nautical miles.

Fifty nautical miles here does not refer to the sound of explosions, earthquakes, and tsunamis, but to the noise of ordinary submarines. In fact, the detection range of the latest US nuclear submarines is about 180 kilometers, which is equivalent to 100 nautical miles, but what they can detect are noisy warships and aircraft, not submarines. If only the submarine is silent, the maximum detection distance of their passive sonar is only more than 20 nautical miles, which is much closer than the sonar equipped on the Chinese submarine 031.

It is precisely because the sonar of the 031 submarine is so cowhideous that when it was sneaking in the Indian Ocean, it was found that other submarines passed by from time to time, but the other party did not feel the storage of the 031 at all.

Because of this, the submarine discovered by the sonar non-commissioned officer today naturally did not attract the attention of the officers, and Ma Yanshu only gave an order: continue to monitor, and continue to explore the seabed.

Sonar officers have become accustomed to such orders, and he continues to listen for distant sounds while directing his men to survey the terrain.

Submarines are also inseparable from sonar to detect terrain under the seabed, but this is active sonar, which first emits sound to the bottom of the sea, then receives the reflected sound, and then processes it by a computer to derive the depth of the seabed and the associated topography.

Activating active sonar means that your body is likely to be exposed. Although they only turn on the sonar of small power, they can be seen from a long distance like a flashlight in the dark night. If you are really in a battle, this method is absolutely avoided, because it is tantamount to indicating the target to the enemy, shouting at the enemy: hit me with a cannonball.

Now because of the distance, it is difficult for No. 031 to judge the identity and distance of the other party, and it is impossible for the submarine from afar to discover the information of No. 031. Of course, it can also be said that you are overconfident in your own technology.

No, the other submarine doesn't know if it was because it detected the active sonar emitted here or because of a coincidence, it actually came in the direction of submarine 031.

A few minutes later, the sonar non-commissioned officer used the computer to send a message to the control tower: "An unknown submarine with an azimuth of 281 degrees, a course of 12 degrees, a distance of 66 nautical miles, and a speed of 24 knots. Other numbers are being probed and analyzed. ”

Ma Yanshu was stunned for a moment, and said to himself: "Is it aimed at us?" ”

He thought for two seconds, a little uncertain in his heart, and then turned his head to Jiang Haitao, who was drinking tea next to him, and said, "Head, it seems to be a big fish, should we turn off the active sonar to stop the submarine terrain exploration?" ”

Jiang Haitao sighed, walked to the submarine command tower with the teacup in the water, looked at the relevant number, and said, "Nuclear submarine? ”

Ma Yanshu nodded: "Yes." ”

Soon, the deputy captain and the political commissar surrounded each other, and they all unanimously agreed that the other party was a nuclear submarine.

The reason why the nature of the other party was determined so quickly was not how good they were, but because the other party was not detected by the towed sonar of the No. 031 submarine until 66 nautical miles, indicating that the noise of the other party was very low, and the 24-knot cruising speed was not something that ordinary submarines could achieve.

Jiang Haitao said: "Suspend seabed exploration, maintain the speed of four knots, maintain the same depth, and retract the towed sonar. ”

The co-captain blurted out, "The towed sonar is also withdrawn?" ”

The full name of towed sonar is passive towed line array sonar, which is a sonar that drags the transducer base array to the target in the water behind the tail of the carrier platform. The advantage is that the sonar equipment enters the water at a deep depth, and the length of the towing cable can be adjusted to the depth of the sonar equipment to work in a favorable water layer; The sonar equipment is far away from the submarine and is towed to the rear of the submarine with steel cables, which is less disturbed by the noise emitted by the submarine itself, so it acts at a longer distance;

However, such a large device obviously has disadvantages that cannot be ignored: whether it is retracted or stored, this set of sonar equipment needs to occupy a lot of space on the submarine; When towing sonar equipment forward, it has a great impact on the maneuverability of the submarine and will greatly reduce the speed of the submarine; Towing sonar is cumbersome and time-consuming. Because of these shortcomings, wartime often resorts to cutting the cable and discarding this set of sonar worth tens of millions of dollars to gain the initiative.

Because it is very troublesome to put it away, the deputy captain asked this sentence, which means that in case this nuclear submarine is also a passerby, we will have to spend a lot of time without dragging the sonar, which is too troublesome. Do you just turn off the active sonar used to detect the terrain and watch the other party's further actions before making a decision?

Jiang Haitao shook his head and said: "My intuition tells me that this nuclear submarine is likely to be the nuclear submarine sent by the United States to target us, that is, the opponent that Director Guo told us to watch out for in the emergency telegram." ”

It turned out that just yesterday, Guo Zhuocheng had sent a message to the No. 031 submarine via satellite that he had obtained from some source: The United States is likely to follow China's example and begin to give China a secret hand to boost India's morale. Therefore, Guo Zhuocheng asked Jiang Haitao to be cautious, not to be framed by the Yankees, and to take measures if necessary.

The so-called qiē measure is undoubtedly to tell Jiang Haitao that they can strike at US submarines when they are threatened.

Listening to Jiang Haitao's words, Ma Yanshu, who commanded the operation of the submarine, immediately issued an order to turn off the active sonar and recover the towed sonar.

Half an hour later, the sonar room sent another message from the other party: "The current number of unknown submarines is 273 degrees, the course is 9 degrees, the distance is 53 nautical miles, and the speed is 24 knots. Other numbers are being probed and analyzed. ”

Although everyone has not confirmed whether this submarine is the submarine sent by the United States to target the 031 as stated in Guo Zhuocheng's intelligence, they have all seen some signs, at least this submarine has a purpose, not to come to the Indian Ocean to watch the excitement and play soy sauce like other submarines.

A few days ago, the No. 031 submarine discovered a number of submarines coming from the Pacific Ocean, the Atlantic Ocean or the Arabian Sea, and their targets or destinations were all in the waters of the border between India and Pakistan, apparently to see the Indian aircraft carrier fleet, to see how the Chinese Navy and the Indian Navy clashed, and to see what kind of results would happen to the fleet sent by China. Of course, there must be some guys who fish in troubled waters, and there are also bastards who want to sneak up on it.

But this unknown submarine did not sail to the border waters of India and Pakistan in the north, but came straight to the vicinity of the equator.

At this time, Ma Yanshu said: "If the other party is targeting us, it means that the Yankees' news is very accurate." It must have been guessed by their satellites that they saw our country's 10,000-ton ship stop at the equator. But if it's heading straight here, there must be other U.S. submarines in other areas. ”

Because fools know that submarines can't stay in one place forever, and to really find a submarine that has stayed somewhere, it is necessary to look at the place where it once stayed, but it is even more necessary to search for other places.

Jiang Haitao looked at the number of words coming from the latest sonar room and said: "Maybe this is the latest American 'Los Angeles-class' submarine installed by the United States, and its silence and speed are about the same as the information we have. ”

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