Traveling through the sword to engage in military industry.

The sudden alarm sound of "beep beep" from the passive sonar made the No. 001 nuclear submarine nervous again.

"Scanned by active sonar!" A red alarm appeared on Liu Wensheng's command screen.

Liu Wensheng stood up suddenly and stared at the information on the screen.

You should know that in this time and space, the detection distance of most active sonars does not exceed 6 kilometers. This is the current physical limit after considering the loss of sound wave energy in seawater. Since active sonar also needs to return, its distance is doubled. Therefore, according to this calculation, the target should be within 12 kilometers.

I just don’t know whether the source of this active sonar is an independent device, or whether we encountered a ship equipped with active sonar!

Under normal circumstances, with only these two sources, a submarine diving on the seabed will not easily turn on active sonar to expose its target.

So now we need to determine whether it is an underwater sonar detection equipment or a ship.

If it is equipment, it is nothing. Anyway, these devices now have almost no ability to transmit information to the rear in real time. The current communications, except for the University of Tokyo, which now has satellite communications, other countries are still in the primitive wireless telegraph and wired power telephone stage. Therefore, the detectors in this remote place, even if they detect the existence of the No. 001 nuclear submarine, have to wait for someone to collect the information from these detectors regularly and take it back for analysis.

But ships are different, there might be a destroyer cruising on the sea!

Although the relationship between destroyers and submarines is like that of cat and mouse, it is difficult to generalize which one will win.

Based on Liu Wensheng's experience as a captain of the Jianghai-class destroyer, he felt that if the Type 001 nuclear submarine revealed a flaw and was caught by the Jianghai-class destroyer, it would be difficult to escape the search and attack of the Jianghai-class destroyer.

The Jianghai-class destroyers now have both torpedoes and depth charges. Especially if the latest model of JK-1 torpedoes is matched with the Jianghai-class destroyers, there is basically no chance of escape. They can only fight to the death to see whose torpedo hits the target first!
"Sonar detected a ship target on the sea surface!" Soon, the passive sonar system determined that the source of the active sonar came from the sea surface and determined that it was a ship on the sea surface.

However, due to the lack of database information on the opponent's sonar signal characteristics, the passive sonar system cannot determine what type of surface ship the opponent is, or even which country it belongs to.

But for Liu Wensheng, none of this matters. The naval vessels patrolling this area are not good friends, but potential enemies.

Based on the approximate location of the enemy ship given by the system, Liu Wensheng began to think of countermeasures quickly.

Now he only faces two choices, one is to sneak up and kill the opponent!
This would also preserve the purpose of their existence. Otherwise, in such a shallow place, if they moved forward a little further, they would basically be discovered by the opponent. Now they were about 12 kilometers away from the opponent, and he had another choice, which was to change the sailing direction and avoid the opponent.

Liu Wensheng thought for three seconds and made up his mind, "Turn right and back off to avoid!"

For the sake of conservativeness, Liu Wensheng decided to play it safe first.

Although he was authorized to act at his own discretion during the voyage, mainly to preserve the nuclear submarine, he was also willing to kill the opponent if necessary.

But in this place, if you attack black people without understanding the situation clearly, you might end up being surrounded.

Besides, war is a big deal.

At present, Liu Wensheng does not have the domineering attitude of a captain of a superpower.

"Jim, there's a signal response here, did we miss something?"

In the sonar room of the Norfolk destroyer, Donald Rip said to Jim Sid beside him with a strange look on his face, "I saw a group of weak echoes, but they were fleeting."

"Don't worry about it. Maybe it's a school of whales. Here, whales are the overlords of the ocean, and we are just outsiders." Jim replied indifferently.

"Or maybe it's the Big Bear's submarine. We can't kill them directly. Compared to the subsequent chase game after confirming the submarine, I would rather watch the whales here."

Although according to their duties, they should not let go of any target passing through here, implement strict monitoring and pursuit, and verify and ensure the safety of the ocean.

The Norfolk is the most advanced destroyer. It was originally an Atlanta-class light cruiser, but after being adapted as a destroyer, its length was reduced by 3 meters, its freeboard increased by 0.7 meters, and its beam increased by 0.55 meters. The final result was a reduction in its aspect ratio, allowing for more cabins and equipment to be placed. In terms of power, it inherited the power system of the Atlanta class, and of course it was also enhanced by post-war technology. The power includes 4 sets of Babcock and Wilcox double-drum steam boilers, with the pressure increased to 84.4kg/㎝ (compared to the boiler pressure of the Fletcher class, which is only 43.3kg/㎝). The main engine is also 2 sets of reduction steam turbines provided by General Motors. The entire system outputs a total of 80000 horsepower and the maximum speed reaches 32 knots.

Since this destroyer is mainly used for anti-submarine warfare, its quietness is also raised to a high level. A new type of 6-blade propeller is introduced to reduce noise during operation. It is an anti-submarine destroyer that was originally built after the Rogue Hawk War. The main anti-submarine weapon is 4 sets of RUR-4 Alpha anti-submarine rockets. Since the new torpedo has not been successfully developed, the Norfolk is equipped with 2 sets of quadruple 553mm torpedo tubes like the Atlanta class.

However, after its completion, the Rogue Eagle Navy found that this destroyer was quite useless, with a large hull and high cost, and it did not play a big role in key tasks, so the construction plans for the subsequent ships that were originally planned to be built were all cancelled, leaving the Norfolk as the only ship left.

It was originally serving in the Atlantic Fleet as a destroyer flagship, but since the rise of the East, the Pacific Fleet of the Big Bear has also expanded. In order to strengthen its strength in the Pacific, the Rogue Eagle mobilized this anti-submarine destroyer and carried out patrol and monitoring missions in the Bering Strait with its larger hull and long endurance.

Unexpectedly, we encountered the nuclear submarine No. 001.

Donald's vigilance did not last long, because he never saw any similar echo signals again, so Donald believed Jim's whale guess by five points.

They were driving from north to south. After turning, Liu Wensheng slowed down and continued to track the mysterious active sonar signal. He soon figured out the opponent's movements and speed.

Liu Wensheng decisively commanded the No. 001 nuclear submarine to turn and sail toward the northeast. If his calculations were correct, he would pass by the opponent at a distance of about 10 kilometers!

"Damn, that elusive signal appeared again, but it's strange that this time it appeared on our port side." Donald said a little annoyed, looking at the not-so-accurate signal on the sonar display.

"Donald, relax. We have been out for half a month now. I can understand your inner anxiety. In two days we can return to the base to rest." Jim comforted.

"If I were you, I wouldn't pay attention to that shitty signal anymore. As long as the system doesn't sound an alarm, we don't need to do too much." "But, there are really some different signals over there." Donald said, holding his head in his hands. He has some obsessive-compulsive disorder and wants to figure out anything unclear, otherwise he won't be able to sleep at night.

"Okay, I'm defeated by you. Let me see what's going on. Maybe we can adjust the position of the active sonar and increase the transmitting signal to the maximum!" Jim began to cooperate with Donald to make a final effort for the inexplicable signal.

When the active sonar transmission power was increased to the maximum, as expected, a slight abnormality appeared in the signal on the port side. Although it was not high, it was obvious that the echo showed the presence of a moving object.

After a few minutes of confirmation, the two men confirmed that there was indeed an unusual echo, and then reported it to the captain, Major Smith. After a brief thought, Major Smith decided to chase after it to see what was going on. The Norfolk turned its bow and began to chase the suspicious target!

Liu Wensheng didn't expect that even though he had been very careful to avoid his opponents, he was still discovered and caught up by them.

Facing an unfamiliar opponent, Liu Wensheng didn't think too much and directly ordered to speed up!
Now they are about 10 kilometers apart. When the No. 001 nuclear submarine enters full-speed sailing, the speed suddenly soars to 30 knots!
The loud noise caused by the high speed made the Norfolk even more suspicious, but the speed of the signal source far exceeded the speed of submarines of this era. Judging from the situation of chasing the signal, the speed of the unidentified object may have exceeded 30 knots!
"Shit, we might really be chasing a group of whales!" Major Smith couldn't help but curse in his heart as he saw that even after he had increased his speed to the maximum, the distance between him and the unidentified object remained relatively consistent, with basically no major change.

If we continue to approach at such a slow speed, we may not be able to catch up even if we chase it for five or six hours. After all, if it is a whale, they may turn at any time and have flexible movement characteristics in the sea.

The Norfolk's huge hull does not have such flexible mobility.

After chasing for more than half an hour, Liu Wensheng finally realized that the distance between the two sides was closing. If this continued, in another two hours they would be within the relatively precise positioning distance of the other party's active sonar. So Liu Wensheng looked at the nautical chart and satellite positioning and decisively ordered the submarine to start changing direction!
Entering the so-called territorial waters baseline of Big Bear's 12 nautical miles!

As a result, the Norfolk, which was following the No. 001 nuclear submarine, was immediately faced with a difficult choice.

In order to figure out the mysterious object, it is necessary to enter the territorial waters of the Big Bear and approach within 6 kilometers. However, if it enters the territorial waters of the Big Bear, it is possible to encounter the patrol ships of the Big Bear and get into a verbal dispute. Although the current Rogue Eagle does not recognize the concept of 12 nautical miles of territorial waters proposed by the Big Bear, and requires that countries that have declared 12 nautical miles of territorial waters "must allow innocent passage of ships of all countries."

But Big Bear has always been very tough about this. As long as he encounters a target within the 12 nautical mile range he considers, he will directly drive his ship into it!
The collision is a method of cold violence that Big Bear always uses.

Because Big Bear always thinks that his things are tough and strong, and are not afraid of head-on confrontation.

Although Major Smith did not recognize the so-called 12-nautical-mile territorial sea baseline, judging from the current situation, it seemed unprofitable to clash with the Big Bear over an unidentified object. So at the beginning, Major Smith ordered his Norfolk to continue chasing along the 12-nautical-mile line!
From this moment on, Major Smith no longer believed that this was not a whale.

No whale knows the concept of territorial waters. If my guess is correct, this should be the Big Bear’s new submarine!

This is bad news for Major Smith, because it means that the Big Bear side already has a powerful submarine with a speed that his own submarines cannot reach at all. Judging from the current chase situation, the speed has reached at least 30 knots!
This is an amazing achievement considering that most submarines today only travel at around 20 knots.

However, as a destroyer captain with long-term experience, Major Smith knows that even if the opponent is very fast, the consequences of maintaining such a high speed are also serious, that is, the submarine's cruising range will be greatly reduced.

Therefore, as long as he holds on to the signal, sooner or later he will be able to exhaust the opponent's oxygen and make him float to the surface. He wants to see what kind of new stuff the opponent is that can have such an excellent speed under the water droplets!
Although it is unlikely that the enemy ship will be sunk, taking photos as souvenirs is inevitable.

What the opponent's submarine configuration is like, even if it is just the tip of the iceberg, may be of great reference significance. At the same time, it can also accumulate the sonar emission data of the opponent's new submarines, providing a basis for finding this type of submarine in the future.

Major Smith was suddenly excited. This was an absolute great achievement. Without going to war, such an opportunity was no different from defeating the enemy.

"Are you still not giving up?!" Liu Wensheng looked at the destroyer signal chasing him on the passive sonar. While commanding the No. 001 nuclear submarine to continue heading north, he was also pondering the pros and cons of new tactics.

Now they are sailing side by side towards each other, with a left-right distance of 10 kilometers and a front-back distance of about 10 kilometers. In fact, the actual distance between the two ships is about 14 kilometers, which is completely within the attack range of the JK-1 torpedo.

If you attack your opponent unexpectedly when he is unprepared, there is a high probability that you will kill him!
Now we need to assess whether killing the opponent will lead to any chain reactions. The most important of these is whether the opponent's fleet will come to encircle and suppress them!

Liu Wensheng weighed the pros and cons of this decision and couldn't make a decision for a while.

If we do not attack, with the current speed difference of 2 knots, the opponent will approach 3.7 kilometers per hour and will catch up in about 3 and a half hours.

At that time, what means will the opponent use to deal with you?

Liu Wensheng didn't know whether the opponent would attack him if his sonar was fixed on him when facing an unknown nationality.

For Liu Wensheng, this was a difficult decision.

However, half an hour later, he finally made up his mind, turned the submarine around, and drove it quickly in the direction of the chasing ship. After entering the 6-kilometer range, Liu Wensheng ordered to turn on the active sonar to lock the opponent. While Major Smith was still confused, two JK-1 torpedoes were unsheathed!

开始加速直扑被声呐锁定的对手！等到鱼雷发射的时候，距离对手的距离还不到6公里，JK-1很快就达到了40节的高速，正常情况下这6公里距离要不了4分多钟不到5分钟内就能杀到！
When the No. 001 nuclear submarine approached within 6 kilometers, the Norfolk was still unaware. When the torpedo was launched and entered the 6-kilometer sonar detection range of the Norfolk, Donald and Jim were stunned by the sudden alarm sounded by the sonar.

"It's a torpedo attack! Alert, torpedo attack! Alert, torpedo attack!" Donald sounded the alarm and began to report into the intercom at the same time at the top of his voice!

However, it was already a little too late. After the first stage of acceleration, JK-1 started the second stage of acceleration, increasing the speed to 45 knots per hour!

Even though Major Smith received the alarm and began to turn right to avoid the situation, it was too late! The Norfolk lost most of its speed due to the judgment and turning. It took at least 180 minutes to complete a 2-degree turn, and then it would take at least 32 minutes to accelerate to 2 knots again. In this time, the JK-1 torpedo was already approaching the Norfolk.

So unsurprisingly, both torpedoes hit the Norfolk. One hit the tail of the Norfolk, creating a huge hole in the propeller and the rear, and the other hit the port side, causing the Norfolk to lose power all of a sudden, and then two large holes were created. Although it did not capsize for the time being, it had completely lost the ability to move.

After Liu Wensheng confirmed that the torpedo had worked, he did not dare to waste any more time on the scene and headed north at full speed! (End of this chapter)