Chapter 798 Sea Cliff

 This is a day of national celebration!

 Fifty years ago, it was here that the great leader announced from above that the People's Republic of China was founded! The Chinese people have stood up since then!

Fifty years have passed, and the motherland has also undergone earth-shaking changes. Now, the motherland has become prosperous and extremely powerful!

Although the military parade has ended, the mighty and majestic army can stay in the hearts of many people for a long time. The East is like a sleeping lion. Now it has woken up. As long as it roars, the world will tremble!

Ballroom.

 “Come, cheers, cheers to our great motherland!”

Looking at the wine glass raised by Mr. Lin, everyone raised their glasses: "Cheers to our great motherland!"

Of course, Mr. Lin has to participate in today's occasion, but Mr. Lin is qualified to stand in a better place, not with Qin Tao and the others. However, when the ceremony is over, it will be inconvenient for retired veterans like Mr. Lin. After drinking with those on active duty, he had already supervised the construction of the H-20. He regarded himself as a research and development personnel, so he sat in a banquet hall with a group of people engaged in military industry. Here, Mr. Lin had no idea. Becoming the boss in doubt.

 Qin Tao also raised his glass and drank it all in one gulp.

“Mr. Qin, most of the equipment on display today is from your Mingzhou Group. How about it? Can you tell us your feelings?”

“Mr. Lin, why do we have the most equipment?”

“Are you embarrassed to admit it? Okay, then I’ll count for you, starting from the air, J-32, Air Police-600…”

“Okay, we have the most, and we steal everyone’s limelight. I’ll have a drink first and do it first as a token of respect!”

 It’s just drinking anyway, everyone is happy, and it’s normal to have a few more drinks.

Just as Qin Tao raised his glass, he saw Xu Zhengyang hurried over and whispered in his ear: "Mr. Qin, something happened!"

"What's going on?" Qin Tao's expression changed. At this time and on this occasion, could something have happened because someone was causing trouble?

“In the southern waters, the Navy’s latest equipped 039C submarine encountered a submarine cliff!”

For 039C submarine No. 273, this is a dangerous experience. For submariners, they are always accompanied by danger. Therefore, the Navy’s submariners’ treatment has always been the same as that of pilots, because they are always Risking your life every moment.

  Needless to say, there were submarine accidents during World War II. Just say that from World War II to 1990, in just fifty years, 91 non-combatant sinkings of submarines occurred in various countries! The biggest accident was the sinking of the USS Thresher nuclear submarine, killing all personnel on board.

Take China as an example, the biggest accident occurred at the end of 1959. At the end of the exercise, submarine No. 418 surfaced and collided with a frigate above. Only one of the 39 crew members at the time was rescued, and the others All people died.

 This time, it was the second major crisis.

In submarine sinking accidents, the main ones are collision, water intrusion and unknown reasons. This unknown reason can occupy the top three, which further illustrates the danger of submarines: people who die do not know how they died.

Although the seawater cliff did not enter the top three, it was the most lethal. Once encountered, there was no possibility of rescue.

 On the vast sea, everything looks exactly the same, but in fact, the seawater is also ever-changing, and the most terrifying thing is the seawater cliff formed by the change in seawater density.

 The density of seawater is determined by the amount of salt. This does not only depend on the amount of evaporation, it is a metaphysical issue.

 The Dead Sea has the highest salt content, so people can float on it, even if they can’t swim. In fresh water, if you don’t swim, you will get drowned.

The buoyancy of any ship is equal to the gravity of the displaced water. Surface ships are not afraid of changes in the density of sea water. The big difference is just the difference in draft. However, for submarines, normally sailing underwater, the buoyancy is exactly equal to gravity. If the buoyancy suddenly increases, the submarine will float up at most, which is no problem. But if the buoyancy suddenly decreases, the submarine will sink rapidly, as if it has fallen into a seawater cliff, or a cliff.

 When it falls rapidly, it will soon exceed the design depth. Under the huge water pressure, the submarine may be crushed and everyone inside will be sacrificed.

 The sea cliff is full of danger and danger!

However, Qin Tao was very calm at this time: "Since we know it is a seawater cliff, it means that the submarine has returned, right?"

If the submarine did not come back, it would be impossible to determine whether the reason for falling into the depth was the sea cliff. Qin Tao was confident about this accident.

Xu Zhengyang nodded: "Yes, the accident happened in the middle of the night yesterday. Now the submarine has returned to the base. This submarine was built by us, so the Navy wants to invite us over."

Qin Tao looked at everyone apologetically: "Everyone, something happened. I need to go. I'll have another glass of wine and apologize to everyone!"

At this time, at the Navy submarine base, the surviving crew members of submarine No. 273 were describing the accident in detail, outlining the full picture of what happened at that time.

 There is no distinction between day and night underwater. After all, there is no sun underwater.

Since submarine No. 273 went to sea, it has been sailing underwater. After all, in the southern waters, some outsiders often come to join in the fun. If they find a floating submarine, or the latest 039C, they will definitely come over in a swarm.

 They are a brand new AIP submarine that can sail silently underwater for a long time. When needed, it can also float up to the snorkel state for ventilation.

Although it was the middle of the night, Captain Wang Hong was still commanding calmly from the control tower. This was the first time to open a new route, and he had to personally command it.

 Time passed little by little, and they were very excited thinking that tomorrow was the birthday of the motherland.

Cheng Yun, the deputy squad leader of the helmsman, calmly observed the various instruments in front of him. These instruments indicated the basic status of the submarine. Although there was an LCD display next to the instrument that showed the status of the submarine, he still felt that the most important thing was to look at the instruments. Intuitive and used to it.

Suddenly, the depth gauge needle shook!

Cheng Yun frowned, something happened!

Sure enough, in the next second, the pointer rotated sharply, and the depth dropped by ten meters in an instant!

“Report, it’s fallen deep!” Chengyun immediately shouted loudly. At the same time, a red warning pattern also appeared on the LCD monitor, Falling deep, falling deep! Notice! Danger!

 Following his report, the atmosphere in the entire command cabin instantly became tense.

 “Forward two! Operate the steering gear to rise!”

  Submarine goes up and down in the water, just like an airplane flying in the sky, it relies on the rudder surface. The cross rudder only needs to operate the horizontal rudder surface. The 039C uses a tall X-shaped rudder, which requires four rudder surfaces to move together. At the same time, coupled with the horizontal rudders on the control tower, one is lifted in the front and the other is pried in the back, the submarine can be raised up and climb upward like an airplane.

Of course, this has something to do with speed. The faster the speed, the better the climb. Therefore, he first issued the order to advance two.

 However, the floor under the feet did not tilt, and the submarine did not change its navigation attitude!

“The depth has dropped by thirty meters!” Chengyun continued to shout loudly.

“Drain the middle ballast water tank!” Wang Hong continued to give the order.

 The water tank needs to be emptied only when it surfaces. This is the main way for a submarine to float up and down, just like a fish's swim bladder.

If you want to resurface in an emergency, you should drain the forward ballast water tank, so that the bow of the boat will rise directly. However, Chengyun did not dare to do that, for fear that the submarine's attitude would change even more.

 Once the submarine capsizes, it is completely hopeless.

 But, it’s still no use!

“It fell to a depth of 100 meters, exceeding the design depth!” Cheng Yun continued to report.

Their advanced diesel-electric submarines use special high-strength steel specially produced by the Mingzhou Group, which can allow conventional submarines to reach the diving depth of nuclear submarines, which is much deeper than the previous 033. However, there is a limit to that. , and now, has exceeded the design depth!

 Under the huge water pressure, the submarine shell made a muffled sound, giving people a terrifying feeling.

“We have encountered a sea cliff, don’t be afraid!” Wang Hong shouted.

He knew very well that in the history of the world's submarines, all submarines that encountered seawater cliffs were killed, and not a single submarine could come back alive.

 However, even if the success rate is 0%, they must try it and never give up. What's more, they have confidence in the submarine in their hands!

“The main cabin pipeline is damaged and water is entering!” At this moment, the report from the engineer soldier came over.

 “Do damage control immediately!” Wang Hong shouted loudly.

“I can’t hear the order, we are doing damage control now!” The sound of the engine room continued to be heard, as well as the sound of rushing water.

This is not only the impact of the water flow, but also the high pressure brought to the engine room due to the intrusion of water, irritating everyone's eardrums. They can no longer hear the orders from the control tower clearly, but they know in their hearts that if they don't Whatever they do, they will die without a burial place.

In the face of the crisis, everyone was doing their own thing quickly. The engineers couldn't look at the damaged parts at all. The water jet was too violent. They could only turn their heads to the side and let the high-pressure water hit their own bodies. The back of the head, and then the hands groped to work.

At this time, strict training plays a role. Even if they don't use their eyes, they can do what they should do.

 They must complete damage control, otherwise if water continues to enter, the submarine will sink completely and there will be no way to recover.

 “The critical depth has been exceeded!”

 “Emergency purge, drain all ballast water tanks of sea water!”

 This is the last step. Whether it will succeed or not depends on this trembling step!

Emergency purging means emptying all the ballast water tanks as quickly as possible. At this time, the submarine theoretically has the greatest buoyancy. It is not known whether this buoyancy is enough.

The submarine continued to fall deeper. Under the huge water pressure, the submarine's hull made a creaking sound, and it seemed that it would be crushed by the water pressure at any time!

“Report, all emergency air supply valves are open!”

“Attention, all kinds of combat electrical equipment are turned off!”

 “Attention, the cabin is battened down!”

 Orders were issued one after another, and messages were returned one after another. In a short period of time, Wang Hong issued countless orders.

Cheng Yun clenched his fists and watched as the pointer of the water depth gauge continued to rotate. It had already exceeded the maximum diving depth of fifty meters. Can their submarine still withstand it?

 At this moment, the pointer stopped turning.

 It fell deep and stopped!

Before Cheng Yun reported it, he saw the pointer starting to turn in the opposite direction!

 “Stop falling and start rising!”

 “Don’t stop, keep floating, and pay attention to controlling your floating posture!”

The maximum depth exceeds the maximum diving depth by fifty meters. Who knows whether the hull can withstand it? There can be no hesitation, let’s go up first and then talk!

 Once it started to surface, the speed began to get faster and faster, and the submarine began to shake. This was a very reckless behavior, but now I don't care so much.

 Everyone is busy nervously. Damage control in the engine room has been completed. The helmsman is operating the steering gear steadily. Others are ready for further damage control.

 Five hundred meters, four hundred meters, three hundred meters…

 “Attention, water is about to come out!”

Like a dragon, the huge 039C submarine emerged from the water. The submarine emerged first, followed by the control tower. The submarine hit the sea heavily and rocked back and forth, with an amplitude of more than 20 degrees. It rocked back and forth a lot. Down.

 At this moment, everyone let out a long breath.

 Safe!

However, Wang Hong has not relaxed yet.

“Call Shuangsha Island Base immediately and request two fighter planes to take off to protect our skies!”

This is the advantage of being close. If you ask Qiongzhou to dispatch a plane, it will take an hour or two to arrive. But Shuangsha Island is different. After emergency takeoff, you can arrive in fifteen minutes, which is enough to compare with some countries. Anti-submarine helicopters and anti-submarine patrol aircraft fly faster.

 Submarines are underwater killers, but if they come out of the sea, they may be chased and intercepted!

When Qin Tao arrived at the submarine base, it was already the early morning of the next day. After reading these reports and records, Qin Tao was also very emotional.

“It was really dangerous this time. Thanks to our submariners who are experienced and well-trained, the commanders stayed calm in the face of danger and handled it properly. On behalf of the Mingzhou Group, I would like to thank our submariners!”

In the most critical first three minutes of this major danger, the captain issued dozens of orders, and the crew performed more than 500 actions. In such a tense moment: the sound of the submarine's body being pressed by the sea water could be heard. The noise, the collapsed water pipe in front of me, were all kinds of unknown situations. Everyone showed high quality: all the commands were correct, and there was no mistake in more than 500 actions!

If a submarine sinks, it will take a long time to find the cause. Among the three major causes of submarine accidents, the unknown cause may be the sea cliff, but if it cannot be determined, it may be associated with the quality of the submarine, which will be a problem for the Mingzhou Group. A big blow!

Now that the submarine has returned, Qin Tao is very emotional.

"Mr. Qin, this is not only the proper handling of our submarine soldiers, but more importantly, the quality of the submarines produced by the Mingzhou Group. When this submarine was at its most dangerous, it fell to a depth of 550 meters. At this depth, , there are still no accidents in the pressure hull of the submarine. On behalf of our submarine detachment and all submariners, I would like to thank you Mingzhou Group!" Liu Tao, the submarine force detachment leader in charge of receiving him, said to him.

“This is what we should do. Our Mingzhou Group is to produce the most advanced weapons for the navy!”

“Now, I have a new idea,” Qin Tao said.

  New ideas?

Hearing Qin Tao's words, everyone became excited: "Mr. Qin, please speak!"

 When Qin Tao finished speaking, the expressions on everyone's faces were very strange. They all said that Mr. Qin was bold, but they did not expect that Mr. Qin would be so bold! However, this plan is too tempting!

“Mr. Qin, we need to report to our superiors.”

“Okay, you go and report first, and I’ll go to Shuangsha Island to have a look.”

In fact, Qin Tao and the others had just left the southern sea area not long ago. Qin Tao wanted to go back this time. Of course, there was a purpose. Xu Zhengyang and He Qian left the next day after the wedding ceremony. This was unfair to the bride. This time there were If you get a chance, go and take a look. It's just a good time for two people to get together again. A little farewell is better than a wedding. A little farewell after the wedding is even better than a wedding.

 Another place.

"Damn it, I didn't even seize such a good opportunity." Swift looked at the latest report and was a little annoyed: "Oriental's 039C submarine actually surfaced and was diving. At this time, you didn't follow it! "

“Their plane arrived too fast and we couldn’t get close at all. However, this accident shows that there is something wrong with Oriental’s 039C.”

“Really? What’s the problem? Aren’t the submarines they built for the Pyramid State top quality?”

"Technical personnel analyzed that the AIP system used by the Pyramid State's submarines was produced using technology introduced from abroad. This system is very mature, but its power is limited and can only allow the submarine to sail at low speed underwater. The Eastern Navy is not satisfied with this performance. Therefore, their own 039C uses a high-power Stirling engine, which is faster underwater. However, this engine is newly developed after all, and the technology is not very mature. They floated to the surface probably because This system is broken."

Dongfang's submarines are still very good, which is the flaw of the immature AIP system. After hearing this analysis, Swift nodded: "Yes, that should be the case. What a pity!"

“Report, another 039C submarine of the same model was discovered, floating on the surface.”

"Okay, it seems that they found a problem with the submarine's engine, so they no longer dare to sail underwater and can only sail on the water!" Swift became happy: "Quick, send an anti-submarine plane over immediately!"

“Report, they are protected by fighter planes taking off from Shuangsha Island, and we cannot send anti-submarine aircraft to get close.”

“Damn it, it’s that Twin Sand Island again. If I had known, no matter what we did, we would have stopped them from reclaiming the island!” Swift said angrily: “Don’t we have any other options?”

“Since it doesn’t work on the water, we will go underwater.” A staff officer said: “There is a Los Angeles-class submarine nearby and can perform tracking tasks at any time.”

Swift was about to nod, but then thought of something and shook his head: "No, the terrain in that sea area is complex and it is inconvenient for our nuclear submarines to move around. Are there any conventional submarines nearby?"

The assistants are very puzzled. It is indeed inconvenient to move around nuclear submarines, but they often move there and are familiar with them. Why don't they dare to go there now?

 Are you worried about anything?

However, this question cannot be spoken out. It would be too embarrassing. They thought for a while and then said: "There is a Collins-class submarine HMS Farncombe nearby."

“Okay, then contact them and ask them to supervise underwater and tell them that this is important.”

The deputy understood. Although Swift complained all day long, in fact, he was definitely not a reckless person. He was very careful. At the critical moment, he would definitely let others go up.

In Eastern terms, he is a dead Taoist friend rather than a poor Taoist. But now he looks like a natural person, not like a conspirator at all.

The Americans do not have conventional diesel-electric submarines. After they mastered nuclear submarine technology, they eliminated all conventional submarines and entered the field of exclusively nuclear submarines. The underwater durability brought by nuclear submarines is unmatched by conventional submarines. However, , which also resulted in them having no conventional submarines to sell.

Therefore, when a country wanted to update its backward diesel-electric submarine, it found that there was no suitable seller, so it had to go to Europe for help. After some bidding, the Swedish Kockum Shipbuilding Company designed and participated in the construction of this submarine. The first ship was built at the Kockum Shipbuilding Company shipyard in 1989. It was launched on August 28, 1993, and entered service on July 27, 1996. The second Farncomb was put into service in 1998.

 This is a brand new diesel-electric submarine. At the same time, its displacement has reached more than 3,000 tons. It is a large ocean-going submarine.

Although this kind of submarine has exposed many problems after being put into service, users are still very satisfied with this kind of submarine. After all, it is much larger than their previous submarines and can perform tasks more easily.

This time, after receiving the mission, they did not hesitate and immediately rushed to the relevant sea area.

“Attention, turn on our sonar and let us listen to the wonderful sound of 039C!” Captain Peter gave the order.

 (End of this chapter)