advanced player in arc

Chapter 778
The submarine's sonar is divided into active mode and passive mode. When the opponent's sonar is in active mode and continues to emit sound waves to the submarine, the submarine knows that it is being targeted.

During World War II, sonar was relatively primitive, passive sonar surveillance, active sonar search, once the submarine found that the enemy ship's active sonar was turned on, it meant that the enemy found your existence, once the rhythm of the active sonar sound waves knocked on the hull suddenly changed Hurry up, it means it has been locked, depth charges and torpedoes may arrive soon.

However, with the advancement of science and technology, the passive working mode of modern sonar is enough to locate the fire control level of the submarine, and the working distance is much longer than the active mode. The passive working mode of sonar has basically become the norm, so it is difficult for submarines now Know if an enemy ship has spotted itself.

But when it comes to torpedoes, the noise level of torpedoes is much higher than that of submarines. 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 at the head of the torpedo is active or passive. , it is not difficult to determine the distance and bearing of the torpedo.

However, some modern torpedoes will adopt a two-speed mode, low-speed search and high-speed attack. Only when they are about to approach the submarine at the end will they enter high speed, and the submarine will find out, but they can no longer escape, so they can only take bait and other underwater acoustic countermeasures. Jamming decoy torpedoes.

The situation encountered by this strategic nuclear submarine of the United States is different. The situation it encountered is similar to that of World War II. It is irradiated by active sonar, and it is continuously irradiated. felt it.

But that's it, the opponent didn't make any further attacks.

This situation simply made their hearts rise to their throats, and they felt uncomfortable all over.

It's like "surrounding but not attacking", this situation is more uncomfortable than directly attacking, this is equivalent to psychological warfare, and it is the kind that directly hits the soul.

In such a closed deep-sea environment, once an accident occurs, it may be a fatal accident for the entire boat, so this effect is particularly obvious.

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

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

The captain of the U.S. strategic nuclear submarine lay beside the sonar officer and kept asking with a serious face.

"Captain, I still haven't found anything. It's the same as the previous few times. It's as if the other party doesn't exist at all. We can't find them at all." The sonar officer said with a solemn expression, and there was a trace of panic in his tone. .

"What the hell, how can 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? Did the headquarters reply? Are we talking to the aliens?" Other countries are at war?!"

"Not yet, captain." The operator was also sweating, not knowing whether it was heat or nervousness, "the 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. If it really was a war, the other party should have attacked us long ago. Why did they only use torpedo sonar to illuminate us?"

The captain scratched his hair in extreme annoyance, and saw that the first officer next to him was also frowning and thinking about something, so he asked, "Da Da, what do you think is going on?"

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

"Tricking us?" The captain was taken aback after listening, then looked down at the comprehensive information reported by his subordinates and immediately reflected, "That's right, the other party is just tricking us!"

This deep-sea submersible that suddenly appeared has been following them for a while. It suddenly appeared on its own sonar, and then disappeared suddenly, but it was not an accidental one, but a continuous and fixed time.

At the beginning it was 1 minute, then 2 minutes, and then only 4 minutes, 8 minutes multiple growth, each time the time is very precise, and after flashing five times, every time it reappears, it will definitely irradiate itself with active sonar .

But on my side, I found the other party only for a moment, and then the other party seemed to disappear completely, as if it had never appeared before. No matter how I searched, I couldn't find the other party. This was also the place where their psychological pressure increased sharply.

Keep following like this, and without launching torpedoes to destroy yourself, no matter how fast you run, the opponent can go further, and the distance is shortening rapidly, but when you think you are about to hit, the opponent suddenly pulls away.

If it hadn't been for people to repeatedly check the equipment and know that their equipment is completely fine, the captain would have thought that the submarine should be overhauled.

But knowing that the equipment on his side is fine, it further proves the strength of the other party.

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

The most important thing is that if I want to go to the military court, I may not be able to. Considering the strength of the other party, if my side really launches an attack, whether my submarine can safely float is a problem.

He concluded that if he really took the initiative to attack, then there is 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 kept in touch Headquarters, I hope to find out what kind of shape is on the surface of the sea now.

"Sir, the headquarters has answered!"

While he was thinking, the operator finally received a reply from the headquarters, and he hurriedly asked, "What's going on, are we at war with Huaguo or Maoxiong?"

"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 the first mate looked at each other wonderingly.

"Wait, sir, there is still a reply from the headquarters..." The operator hurriedly said again, and this time he seemed to be frightened by something, and he 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 are all constantly intimidated!"

"what?!"

Not only the captain and the first officer 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 have been exposed, and they may be killed by the opponent at any time. What happened to them?
A living Atlantean?

This situation is already the most critical moment for the United States!
"Quickly reply to the headquarters and ask us what should we do in this situation?"

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

Said the captain quickly.

"Good captain!"

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

Without an answer from the headquarters, they can't act rashly. The reason why strategic nuclear submarines add the word "strategy" is because they have the ability to surprise and make a final decision.

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

Encountering such a thing, the United States is almost going crazy.

(End of this chapter)