Advanced Players in Arc

Submarine sonar is divided into active mode and passive mode. When the other party's sonar is in active mode and continues to emit sound waves to the submarine, the submarine will know that it is being targeted.

During World War II, sonar was relatively primitive, with passive sonar surveillance and active sonar search. Once a submarine discovered that an enemy ship's active sonar was turned on, it meant that the enemy had discovered your presence. Once the active sonar sound waves hit the hull, the rhythm suddenly changed. Fast means it has been locked, and depth charges and torpedoes may arrive soon.

However, with the advancement of science and technology, the passive working mode of modern sonar is sufficient for fire control level positioning of submarines, and the range is much longer than the active mode. The passive working mode of sonar has basically become the norm, so it is difficult for current submarines to Know if an enemy ship has spotted you.

But when it comes to torpedoes specifically, the noise level of torpedoes is much louder than that of submarines after all. Modern submarines are also equipped with high-level sonar. Once an enemy ship launches a torpedo, the submarine will know it, regardless of whether the sonar on the torpedo head is active or passive. , it is not difficult to determine the distance and orientation of the torpedo.

However, some modern torpedoes will adopt a two-speed mode, low-speed search and high-speed attack. Only when they are almost close to the submarine will they enter the high speed. The submarine will find it, but it can no longer run away, and can only take underwater acoustic countermeasures such as baits. Jamming and confusing torpedoes.

This American strategic nuclear submarine encountered a different situation. The situation it encountered was similar to the situation in World War II. It was illuminated by active sonar, and it was continuously irradiated, and it was so irradiated that it almost caused a heart attack. Feel it.

But that's it, the opponent made no further attack moves.

This situation simply made their hearts in their throats and made them feel uncomfortable all over.

It's like "being surrounded without attacking". This situation is more uncomfortable than attacking directly. It is equivalent to psychological warfare, and it directly attacks the soul.

In such a closed deep-sea environment, once an accident occurs, it may be an accident in which no one on the boat survives, so this effect is particularly obvious.

"What's going on? Have you found them? Where are they shining on us?!"

"Where did they go again?! Why did they disappear from the sonar again?"

The captain of the American strategic nuclear submarine lay beside the sonar operator and kept asking with a solemn expression.

"Captain, we still haven't found anything. Just like the previous times, the other party seems to have completely disappeared. We can't find them at all." The sonar officer said with the same solemn expression, and there was a trace of panic in his tone. .

"What the hell, how could there be such a thing? Have we met aliens?" The captain took off his hat and held it in his hand and asked the operator next to him, "Where is the headquarters? Has the headquarters responded? Are we with Other countries are at war?!”

"Not yet, captain." The operator's face was also covered with sweat. I don't know whether it was because of heat or nervousness. "Headquarters hasn't answered yet. I don't know what's going on."

"Damn it, what the hell is going on? This doesn't look like a war has started. If there really was a war, the other side would have attacked us long ago. Why would they only use torpedo sonar to illuminate us?"

The captain scratched his hair in annoyance. Seeing the first mate next to him also frowning and thinking about something, he asked, "Zhi Da, what do you think is going on?"

"Captain, this is very unusual. I think they are playing tricks on us." the first mate said in a deep voice.

"Tricking us?" The captain was stunned after hearing this, then looked down at the comprehensive information reported by his subordinates and immediately reflected, "Yes, the other side is playing tricks on us!"

This sudden appearance of the deep-sea submersible had been tracking them for some time. It suddenly appeared on its sonar, and then suddenly disappeared again, but not by chance, but continuously and at a fixed time.

It started with one minute, then two minutes, then only four minutes, then eight minutes. Each time the time was very accurate, and after flashing five times, it would definitely illuminate itself with active sonar every time it appeared again. .

However, it only took a moment for them to discover the other party. After that, the other party seemed to have completely disappeared and had never appeared before. No matter how they looked for it, they could not find the other party. This also caused their psychological pressure to increase dramatically.

He kept following him like this, and he didn't even launch torpedoes to destroy him. No matter how fast he ran, the opponent was able to get ahead of him, and the distance was shortening rapidly. But when he thought he was about to collide, the opponent suddenly widened the distance.

If someone hadn't checked the equipment repeatedly and found out that there was no problem with his equipment, the captain would have thought that the submarine was due for overhaul.

But knowing that there is no problem with the equipment on our side further proves the strength of the other party.

And since we haven't received the information from the headquarters yet, we can't take the initiative to attack. If we get into big trouble because of this, we will definitely go to a military court.

The most important thing is that he may not be able to go to court-martial if he wants to. Considering the opponent's strength, if he really launches an attack, whether his submarine can safely surface is a problem.

He concluded that if he really took the initiative to attack, there was an 80% chance that he would be killed by the other party, so he did not dare to take the initiative to attack. He could only find a way to escape in his own way and keep in touch. Headquarters, hoping to find out what the situation above the sea is now.

"Sir, the headquarters has called back!"

While he was thinking, the operator finally received a reply from the headquarters. He quickly asked, "What's going on? Are we at war with China or Mao Xiong?"

"Sir, no country has officially declared war on us, and the Navy Headquarters has not received any war signal from the President and the Ministry of Defense." The operator said quickly.

"Then what's going on?" The captain and first mate both looked at each other in confusion.

"Wait a minute, sir, there is still a reply from the headquarters..." The operator said hurriedly again, and this time he seemed to be frightened and stuttered.

"We...half of our strategic nuclear submarines cruising in the sea have encountered...the same situation as us! They have also encountered stalkers, and they have continued to intimidate!"

"What?!"

Not only the captain and the first mate next to him were shocked, but all the staff in the command room were shocked by these words.

The positions of half of the strategic nuclear submarines were exposed and could be killed by the opponent at any time. What did they encounter?

Living Atlanteans?

This situation is already the most critical moment for the United States!

"Reply to the headquarters quickly and ask us what should we do in this situation?"

"Is it going up to show your identity? Or is it a direct attack?"

The captain said quickly.

"Okay Captain!"

They are not alone in their plight, as there are many fellow subs who are going through the same thing as them and are all anxious.

If the headquarters doesn't have an answer, they can't act rashly. The reason why strategic nuclear submarines need to add the word "strategy" is because they have the ability to surprise and make the final decision.

However, there is a premise here, that is, it cannot be discovered by others. Once discovered, it will be no different from fixed nuclear facilities on the ground, and its deterrence capability will be greatly reduced.

When something like this happens, the United States simply goes crazy.