Chapter 407 Diving to a depth of 600 meters? I do not believe!

"Charge our Jiaolong immediately!" Qin Tao climbed out of the Jiaolong's spherical cabin and shouted to the people next to him: "Before dark, we can hoist a nearly twenty-ton piece of wreckage!"

Among the wreckage of the Dingyuan ship, this one is the largest. Qin Tao has long been targeting this wreckage. After getting it back, he will put it in the most conspicuous position of the museum for people to visit!

The popularity of the aircraft carrier park cannot continue forever. After all, it is no longer interesting to go up after seeing it once or twice. Therefore, we have to add something new. This museum of the Dingyuan ship is the next focus to attract tourists. He is very expect.

In order to charge the Jiaolong, an additional MTU generator set was installed near the crane. At this time, the diesel engine had been started, and a thick cable was inserted into the charging port of the Jiaolong. Charging was proceeding rapidly.

Qin Tao looked at the Jiaolong and was filled with joy. If divers were sent down, the action would be too slow. It would take a day or two to clear the mud. Now, the Jiaolong has launched into the water for the second time. Can complete the salvage work.

etc!

 The guy’s expression doesn’t seem right.

 Since we have made such a big discovery, shouldn’t everyone come over to express their congratulations? Now, why do everyone look so indignant?

“Zhengyang, what happened?” Qin Tao asked.

 “Captain Liu won’t let me talk.”

"Then do you listen to him or me? Should I pay you a salary, or should he pay you a salary?"

“We received a telegram, a distress telegram sent back by 403.”

  403?

Qin Tao's expression immediately changed: "Where?"

“It’s about two hundred nautical miles away from us.”

 “What else is there to say? Just drive over!”

“But, aren’t we salvaging the Dingyuan ship?”

"The wreckage of the Dingyuan ship is in the water. It cannot escape at all. It can be salvaged sooner or later, but the rescue mission is urgent. We must get there quickly!" Qin Tao said: "Also, call for the J-31 fighter jets. Wait at a nearby base, and if necessary, fly to our deck."

The tail helicopter platform of the Nancang is very large and can accommodate two helicopters. Moreover, if there is only one helicopter, the front hangar can be retracted, leaving a larger landing platform for the helicopter.

If you are a skilled pilot, you should be able to land the J-31.

Even if taking off and landing will ablate the deck, I don’t care. The worst is to weld it again when I go back!

 However, take action when it’s time to take action and never sit back and wait for death.

Qin Tao said and quickly walked toward the deck.

"Mr. Qin, we can't do this. We need to wait for orders from our superiors." Liu Yong said, "Now, if we act without authorization, we may destroy the overall deployment."

"Right now, this comprehensive supply ship is still undergoing sea trials. We are driving over to test its performance." Qin Tao said, "Moreover, we are also carrying the Jiaolong. I have a good idea now. ."

 Jiaolonghao, a good idea?

Liu Yong opened his eyes wide when he heard Qin Tao finished talking about the plan. If this is the case, he can really take action, but he still needs to report it to his superiors!

"We will start moving at full speed now and head towards the sea area where the incident occurred, but at the same time, we must also report to our superiors and obtain their permission."

 This is considered to be a beheading first and a report later.

"All right."

After all, the Nancang is a supply ship with a maximum speed of only 16 knots, so it did not move very fast. By the time it arrived at the sea area where the incident occurred, it was already midnight.

There was a roar in the sky. It was the dispatch of fixed-wing anti-submarine aircraft. On the sea surface, a popping sound was heard, and the sonobuoy was dropped into the sea water.

 The situation is very dangerous.

"Mr. Qin, you can't go down, it's too dangerous!" Xu Zhengyang saw Qin Tao trying to get into the Jiaolong again, and immediately stopped him.

"During the day, I was still lamenting history. Our outstanding Chinese people fought hard and marched forward bravely, and finally established New China. Now, it's my turn, am I going to be a coward?" Qin Tao said: "Besides, There is no danger in this, we are just going to do a square dance underwater, what is there to be afraid of? You can't hold me back at such a critical time."

“Well, Mr. Qin, I’ll go with you, even if I’m at the back. If there’s any danger, I’ll..."

Xu Zhengyang originally said that they would die together, but in the end he didn't say it out loud. This was too unlucky.

Qin Tao smiled: "What do you want? I already have a son, so I'm not afraid of being honored. Zhengyang, you don't have a wife yet. What are you talking about? You just went down to play, why are you making such a fuss. Come up if you want."

Xu Zhengyang carried the recorder and got into the rescue cabin at the back. There was still the original trio in front. The deep-diving lifeboat entered the sea water again, but this time it was carrying cables.

 Deep submersible lifeboats are self-powered, but they can only rely on batteries for power, and their use time is very short. Therefore, if a cable is towed from the mother ship, it can greatly increase the underwater endurance time.

However, the deep-diving lifeboat is originally very flexible. If it drags a cable, its maneuverability will be greatly restricted. If the cables behind it are knotted or tangled together, it may become trapped in a cocoon.

Therefore, when circling the seabed to search for the wreckage of the Dingyuan ship, you cannot hang cables, but for the current operation, hanging cables is most appropriate.

The deep-diving lifeboat sank slowly in the sea water, maintained at a depth of fifty meters, and then sailed three nautical miles to the west, which is the maximum length of the cable.

“Zhengyang, get ready to turn on the cassette player!” Qin Tao shouted to the back through the intercom.

 “Understood, received!”

 “Attention, the volume increases from low to high! Take your time, don’t rush!”

"clear."

Xu Zhengyang turned on the radio recorder, and the special tape began to rotate. The special sound was transmitted through the speaker, vibrating the side wall, and then spread through the side wall to the sea water outside.

On the anti-submarine aircraft, the monitoring sonar operator immediately became excited: "Found it, found it! The sound gradually became louder, indicating that it was approaching and that it was heading east!"

Xu Zhengyang slowly turned up the volume. The sound sounded from the sonar buoy in the sea, from far to near.

It got louder and louder. When Xu Zhengyang’s volume was turned to the maximum, Qin Tao had to put on his headphones.

 It’s so loud, it’s definitely the volume of a square dance!

At this time, not only the anti-submarine aircraft in the sky, but also the bow sonar of the nearby warship was captured.

 A famous sonar operator was very excited.

 “Comparing with the database!”

 “That’s right, it’s Han level!”

 “With such a loud sound, it must be moving at full speed!”

 “Yes, this is a sea tractor!”

 “Follow it, follow it, don’t lose it!”

“Oh, I guess, it is approaching the surface ship at full speed, and it wants to use the cover of the surface ship!”

“It’s a good trick to make a noise in the east and attack in the west. We thought it would return to the west, but it turned out that it was actually heading east!”

 Two hundred meters in the water, the sonar operator of boat 403 also heard this familiar sound.

"Are they our companions? How could they do this? We can't let our companions take risks!"

 “That’s right, we’re moving forward at full speed too!”

 “Don’t speak, stay silent!” The captain clenched his fists: “Now, return at a low speed at a speed of two knots!”

The 403 boat continued its return journey in the west direction. To the east, the Jiaolong was turning on the sound system underwater, like a square dance underwater, and they attracted everyone's attention.

On the water, everyone on the supply ship Nancang was listening silently, listening to all the sounds.

“Speed ​​up the cable dragging!” Liu Yong gave the order.

The Jiaolong's square dance volume alone cannot fully simulate the 403. After all, the underwater speed of the Jiaolong is only a few knots. With such a big movement and running at full power for only a few knots, there must be something wrong!

 So, we have to drag the Jiaolong with cables and constantly increase its speed.

 “Half of the cable has been received!”

“Slow down the speed of retracting the cable and let’s speed up!” Liu Yong gave orders one by one.

These are all Qin Tao's plans, to invade the east and attack the west, to surround Wei and rescue Zhao, and put on a gorgeous show!

Moreover, it was carried out very successfully.

 Among them, the tape was the most critical. It was delivered by a helicopter while they were on their way. Using a helicopter to deliver the tape was definitely a luxury, but the current effect was just right, so it was definitely worth it!

 Any submarine will make sounds, and the sounds are completely different. Some are like fish blowing bubbles in the water, and some are like driving a tractor in the sea. This tape they have is specially used for training sonar soldiers, and it contains all the sounds of 403.

Finally, the cable was reduced to only a hundred meters and stopped. Everyone climbed down and put their ears to the deck. They could hear the unique sound below, which was beautiful.

“Zhengyang, turn down the volume by half and sail at a speed of more than ten knots underwater, that’s it.”

At this time, the sonar operators in the sea area were very excited: "Sure enough, it got under the belly of the ship. It is still sailing eastward. Let's follow it and see where it can go!"

Anti-submarine aircraft also continued to fly over, even flying to the sea area in front of the Nancang and throwing sonobuoys. This action was quite unfriendly, but everyone on the Nancang was extremely excited.

The more people chase them, the happier they will be.

 After a whole day of delay, they still have a big move!

 When the time comes, let them be completely surprised and desperate!

 Underwater, the Jiaolong was still moving.

The cables above provide them with unlimited battery life. Their biggest problem is their own endurance. There is no way to sleep on this small Jiaolong. However, at this time, everyone is in excitement and will not sleep at all. Feeling tired.

Even Kwasa, a foreigner, was extremely excited. After all, back then, they had always regarded the Americans as their opponents, and now they are confronting the Americans.

"Qin, you are simply a genius!" Kvasa said with emotion.

Only Qin Tao can come up with this kind of plan.

"Yes, I also think I am a genius." Qin Tao now has no humility at all.

Their deep-diving lifeboat also has a sonar, but this sonar is only used for communication. The synthetic aperture sonar, which is specialized in detecting seabed terrain, is still under development and has not been equipped. They also do not have the ability to detect surrounding sounds like conventional submarines. Sonar, so they don't know whether the 403 is safe, but judging from the opponent's formation, it should be coming towards their own side.

Led by the Nanchang, the deep-sea lifeboat was moving at a speed of 16 knots. The underwater square dance was still playing on the radio behind it, and Xu Zhengyang was also excited.

“Everyone should go to bed when it’s time to go to bed. Our operation will take a whole day,” Qin Tao said.

This day is still not peaceful. There may be fighter planes flying over, or Flankers and Tomcats may appear. However, they are very calm underwater. The only thing they have is to rest and replenish their strength until they wait. At night, they still have a mission!

　This day has finally passed.

When night fell on the sea, Qin Tao opened his eyes underwater: "Everyone, the show is about to begin!"

 Everyone is excited.

 “Attention, unhook the cable!”

Along the way, the Jiaolong was towed by the Nancang. At this time, the single-shaft single propeller of the Nancang showed a high enough advantage: the possibility of the cable being stirred into the propeller was too small.

 After all, the cable is released from the port side. As long as the Jiaolong does not turn right, goes straight or turns left, there will be no problem.

 If it is a double propeller, the propellers are closer to both sides, and there may be some accidents under the impact of sea water.

At this time, the Nancang, which was advancing at high speed, began to turn to the left, and the Jiaolong, which was freed from the cable, continued to move forward. Just like that, the two began to separate!

The sonar operators were excited: "They have broken away. They have broken away. We heard two different sounds!"

 “That submarine started to dive!”

 “It can’t escape, send our Los Angeles over!”

Various arrangements were being made in full swing, and an underwater feast began.

 However, after a moment, they felt something was wrong.

 “Dive to a depth of one hundred meters!”

 “Dive to a depth of two hundred meters!”

“Is it going to escape into the deep sea? Impossible, absolutely impossible!”

 While they were discussing, an astonishing number came: "Three hundred meters!"

 The target dived to a depth of three hundred meters!

"We have never found that this kind of submarine can dive to a depth of three hundred meters. It seems that we pushed it too hard."

While they were sighing, more terrifying numbers kept popping up from the sonar operator’s mouth.

 “Three hundred and fifty meters, four hundred meters!”

"Impossible, this is absolutely impossible. All our data shows that the ultimate diving depth of this submarine is three hundred meters. We have never found it below three hundred meters!"

Although Lao Maozi's Kilo-class submarines can dive to a depth of three hundred meters, this kind of Eastern submarine does not have the ability to dive deeper.

 For a submarine, the diving depth is mainly determined by its pressure hull.

Every time the depth decreases by ten meters, the pressure will increase by about one atmosphere. At a depth of three hundred meters, it is equivalent to a pressure of thirty atmospheres. This is already a terrible number.

Only advanced steel can withstand such pressure. If you continue to dive, the pressure will be even greater!

“Did they encounter a low-density area in the seawater? These poor guys!” Some people were already sighing at this time.

 In the underwater world, there is a very scary phenomenon, which is the low-density area.

 There is a junior high school physics question: When a ship sails from a river into sea water, will it sink for a period of time or float for a period of time?

 The buoyancy force on the ship must be equal to its gravity. The ancient Archimedes' principle tells us that the buoyancy force is the gravity of the water displaced. This force does not change, but the volume will change because the densities of seawater and river water are different.

 Seawater is denser, so a smaller volume than river water can provide the same benefits. As a ship enters seawater, its draft becomes shallower.

  For another example, why can people float directly in the Dead Sea? It’s because the Dead Sea has a lot of salt and a high density.

For a ship sailing in seawater, the draft changes. For a submarine completely submerged in seawater, the draft is already full and cannot change any more. If it encounters a low-density area, the buoyancy will decrease instantly and the gravity will be greater than Without buoyancy, the submarine will sink quickly.

 It was almost fatal.

“No, it’s not a low-density area. They don’t dive very fast. If they encounter a low-density area, they will quickly fall into the deep sea!”

“Five hundred meters, they dived to five hundred meters!” Another amazing voice.

“Damn, how is this possible? We are almost reaching the limit of our Los Angeles submarine!”

The designed diving depth of the Los Angeles submarine is 450 meters, but if you are in a hurry, you can dive to a depth of 500 meters without much problem.

What now? How could such a backward underwater tractor from the East possibly dive to such a depth?

 Absolutely impossible!

 “It’s still diving!”

 The sonar operator’s voice was filled with disbelief: “Damn it, is our sonar broken?”

Of course it's impossible, because they have more than one set, many sonars on the surface, in the air, and underwater are listening, and they get almost the same conclusion: the target's diving depth is far beyond what they thought. Know.

“Six hundred meters, it’s already reached six hundred meters! I suspect it’s Lao Maozi’s titanium alloy submarine!”

 The only ones that can dive to this depth are Lao Maozi’s titanium alloy submarines. Could it be that they followed the wrong one?

"No, no, our plane took photos of it floating, and we chased it. This is the 403 submarine. Damn it, how did they do it? They should be squeezed like sardine cans now. That’s right!”

Underwater, Qin Tao's face was full of excitement: "Guess what those guys are thinking now?"

"They must have thought it was our titanium alloy submarine!" Kvasa said excitedly: "Only our titanium alloy submarine can dive to this depth, a depth that even their torpedoes cannot reach, and they have no means of attack! "

Celestite Design Bureau originally built titanium alloy submarines. Kvasa felt very accomplished at this time: "Should we dive to a depth of one thousand meters to scare them?"

“No need, if we dive further, they will really become suspicious. Now, let’s gradually reduce the volume to give the illusion of leaving, and then return!”

 The sound under the water is slowly getting smaller and smaller.

 The sonar operators were still confused.

"It can sail freely at a depth of 600 meters, which means that its design depth has reached 600 meters. Damn it, what kind of steel is it made of? Even our HY80 steel cannot reach this depth. !”

“Yes, only the HY-100 steel that is being developed can allow our submarines to reach a diving depth of 600 meters. How did the Orientals do it?”

They were amazed and unwilling. Our country’s technology is obviously the most advanced, so why are we being compared to it?

 They are unwilling, but they have no other choice.

 The sound under water gets smaller and smaller, gets quieter and quieter, and eventually disappears.

 “We have lost track of it.”

 “Damn it, I don’t believe it, I don’t believe it!”

I don’t know how many people are cursing the powerful performance of that submarine. They don’t know that they have been deceived.

"In the future, their submarine designers will be very busy." Qin Tao said happily: "They found out that our submarines are so powerful, they can only continue to do research and strive to surpass us. Even if they can't compare with Da Mao, even us If you can't compare with them, their designers should all be killed by a piece of tofu."

“Yes, they should be busy now, but Mr. Qin, with our stimulation, will they really build this kind of submarine that can dive to a depth of 600 meters?”

"Won't."

"Mr. Qin, why are you so sure?" Xu Hua was a little surprised.

“Because steel that can meet this kind of performance cannot be made at all. If it can be made, then why does Damao still build titanium alloy submarines?”

 Seawolf-class submarines boast that they can reach a diving depth of 610 meters, but what is the result?

Decades later, someone finally stood up. Because they could not meet the design targets and they were under heavy pressure, they simply falsified key data!

A metallurgical expert named Elaine Thomas admitted that for more than 30 years from 1985 to 2017, the steel they provided was substandard!

As a result, the metallurgical experts in the East complained bitterly that the hawk sauce was too much and did not respect martial ethics! It took me twenty years to reach half of your data, and I worked until retirement to reach 80% of your data. It took me a long time, but you yourself don’t have this kind of steel!

  I have been doing 996, but it turns out there is no need!

Now, things are going to be reversed. Under Qin Tao's stimulation, those guys on the opposite side should suffer a lot! Let them go and toss, toss and toss, toss and toss for decades, and finally, here is the decryption, we were deceiving people in the first place!

Thinking about how ugly the other party's face was at that time, Qin Tao was so happy at this time.

 In the predetermined sea area, the Jiaolong surfaced and waited for more than ten minutes before being salvaged by the Nanchang. This mission was successfully completed!

 (End of this chapter)