Chapter 798: The quality of Swedish submarines is too poor
Collins-class submarines were built by Sweden. Although Sweden is a small country, it is unique in military research and development. They have JAS39 Gripen fighter jets, they have stealth missile boats, and they also have good submarine research and development capabilities.
In the 1970s, they developed the A17 Gotland-class submarine. This submarine mainly performs the task of closing the Baltic Sea, so it is a one-thousand-ton offshore submarine, and the Collins-class submarine is this kind of submarine.
A simple enlarged version, the displacement is enlarged from 1,000 tons to 3,000 tons, so that the endurance requirement of 10,000 nautical miles can be achieved, and the crew's living space and material reserves can also be met.
However, the hull of the boat can be enlarged, but other parts cannot be enlarged directly, such as the engine.
Looking around the world, advanced submarine engines come from Germany, but Sweden did not directly purchase MTU diesel engines. They used their own V-18B14 Hetmot 17-cylinder 4-stroke diesel engine on this submarine. This diesel engine is not available in the world at all.
The experience of using it on submarines was previously used in offshore oil fields and other fields.
Therefore, its noise was a bit loud, so when the first boat Collins was put into service, they worked for a long time to reduce the noise and adopted various measures. When the second boat came, they also laid silencer tiles.
Even so, its noise is still quite high.
The Farncomb sailed quietly underwater, unaware that its sound had spread along with the water and reached the sonobuoy that was dropped before dawn.
Shuangsha Island.
"I heard underwater sounds and a submarine is coming!"
"Can you tell the model?" At this time, even Qin Tao became excited.
Although the idea was his and his superiors agreed and decided to teach certain people a lesson, it was not so easy to actually implement it.
What if a nuclear submarine comes and something happens and a nuclear leak occurs?
"Yes, this submarine is very noisy. We are comparing it in the database and will have the results soon..." The sonar officer said this, and the information was already displayed on the screen.
"Collins Class!"
"Okay, it's a conventional submarine, it's just the right time!" Qin Tao finally felt relieved, and he was a bastard! Beating his dog made the dog owner lose face!
"Act according to the original plan!"
The arrow is on the string and must be fired!
Due to funding issues, the Navy does not have many submarines. The one sailing on the sea at this time is No. 273's sister boat No. 272. Currently, there are only these two submarines in the entire southern sea area.
It was in a floating state and sailing grandly, allowing everyone to see it clearly. After receiving the telegram, the captain showed a smile on his face: "Everyone, pay attention, and act according to the original plan!"
In the distant sky, a helicopter appeared. It stirred the airflow and made a whirring sound. On the shell of the control tower, the sailor who was watching there shouted loudly: "Attention, there is a plane!"
"Quick, dive, emergency dive!"
A whirlpool appeared on the bow of the boat. The submarine was diving rapidly underground. The bow of the boat sank into the water, and the hull of the boat sank into the water. The special-shaped enclosure finally disappeared, rolling up waves on the sea, and then disappeared.
"Damn, why did they dive?" After receiving the news, Swift was extremely angry.
"While it was diving, a helicopter happened to fly over, which may have frightened it."
Although they couldn't get close to observe, they could still keep an eye on it with an early warning aircraft. They knew the situation of the submarine clearly before it dived.
"Aren't there fighter planes escorting us?"
"Yes, but there was a loophole in their organization. The batches of escorting fighter planes were not handed over. The previous batch flew away, and the next batch was still on the way. In the process, helicopters appeared."
"Damn it, who sent this guy with no eyesight?" Swift was very dissatisfied.
This estimate will always be a mystery. They can't investigate it. They can only guess that it is from a nearby country that ruined their big event.
"Now, we can only hope that the Farncomb will find its traces underwater." Swift said: "I hope the Farncomb will not disappoint us. Things underwater are still very interesting."
The Farncomb tried its best underwater and used its advanced sonar system to find traces of the target. The target's trajectory appeared on the display screen.
"Currently, it's heading east."
"The captain of this submarine is so awesome. After he dived after realizing that something was wrong, he actually sailed eastward. This would have chased everyone in the wrong direction. Fortunately, we have advanced sonar equipment that can capture
Its traces." Peter said with emotion.
"Captain, do we want to catch up?"
"Of course not. If we keep following behind him, we will never catch up." Peter said.
Underwater is all about tactics. Although both are diesel-electric submarines, they dare not move at full speed. Not only will precious power be consumed, but more importantly, the noise will reveal their positions.
And, this isn't necessary.
"Then what do we do?"
"We continue to sail in a straight line, and if I guess correctly, it will drive eastward for dozens of nautical miles, then turn north, drive another few dozen nautical miles, and then sail westward after passing the islands and reefs.
Peter said: "So, as long as we continue sailing north, we can wait for each other on the route ahead. At that time, we can conduct a simulated attack and scare those guys to death."
Hearing Peter's words, his men were a little excited. Yes, since the other party is going back to its home port, it will definitely not sail all the way east. It will eventually turn back, in order to make the damn thing above its head come from nowhere.
The helicopter flew into the air, so they could only make a big circle to catch them by surprise. When others thought it would sail directly to the west, it instead sailed to the east.
This chapter is not finished yet, please click on the next page to continue reading the exciting content! In the underwater world, it is always in slow motion. In order to pursue extremely high silence, submarines sailing underwater will only use three to five knots.
of sailing speed.
A few hours later, the sonar operator suddenly shouted: "It's turning, the other side has turned, and it's heading north!"
"We continue to catch up. In a few hours, they will sail west." Peter's face was filled with excitement. As a submarine captain, he must be like a hunter and be able to endure. Now, the other party
It's equivalent to making a big circle, but they are walking in a straight line so that they can catch up with each other.
The Farncomb continued to move forward, and everyone's hearts were full of expectations. They did not know that there was a huge danger waiting for them just in front of their route.
"The target has turned westward!" the sonar officer shouted loudly: "According to the current route, we will meet them in three hours!"
“Awesome, everything is going according to our ideas!”
"Yes, you are simply leading them by the nose!"
In their excitement, they felt the hull of the boat shaking. It was also for this reason that they discovered that something was wrong. Someone glanced at the depth gauge, and then shouted loudly: "We are losing depth!"
For any submariner, the last thing they want to see is to lose depth for no reason! Peter's expression suddenly changed: "What's going on?"
"I don't know, it has fallen to a hundred meters now!"
Collins-class submarines use tensile high-strength steel developed by Sweden. This alloy steel is easier to weld and process than HY80 and HY100 nickel-chromium steel. The yield strength is also good, which can give the submarine a strength of 300 meters.
The maximum diving depth is pretty good among conventional submarines. You must know that many nuclear submarines only have a diving depth of 300 meters.
However, generally speaking, a submarine is safe as long as it dives into the water and is difficult to be discovered. Therefore, under normal circumstances, a submarine will not dive too deep. It is usually tens of meters deep, even a hundred meters.
It is a very deep place, with a maximum diving depth of 300 meters. Except for diving to this depth during testing, it will not be driven to this depth at all.
"Quick, speed up, lift the helm!" Peter shouted.
The normal operation of falling underwater is to use the rudder surface to pry the submarine up, and then the submarine floats upward under its own power. This is the first step. You cannot empty the ballast water tank immediately after coming up, otherwise the submarine will go up.
.
accelerate!
The engineers got busy, and as soon as they increased the power, they heard a unique sound, sizzling, sizzling! The sound of water under high pressure was so irritating to people's eardrums. They looked at the tail of the submarine and the position of the drive shaft.
, the water jet has already started!
"Report, the tail drive shaft bearing is leaking again!"
The Collins-class submarine is an enlarged version of the Gotland-class submarine. For them, this is no problem. They believe in Swedish shipbuilding technology. Several other bidding plans are also simple enlarged versions of ordinary submarines. However, they later discovered
I am too naive.
Not everything can be amplified simultaneously. After amplification, it will cause many problems. For example, is the noise of the submarine also amplified? The shape of their submarine is larger, and when sailing underwater, the noise further increases. Later, in
Another fairing was added between the conning tower and the hull, which finally solved the problem.
As for the problem of propeller bearing leakage, it was discovered when the first submarine was launched. It took the Swedes two years to solve it. Those people patted their chests and promised that the problem of bearing leakage would not happen again. Who would have thought
, the chain actually dropped at such a critical moment!
"Quickly, empty all the seawater in the ballast tanks!" Peter shouted loudly.
If other pipes are damaged, there may be remedial measures, but the submarine propeller bearing is leaking and there is no way to repair it! The only way is to drain the sea water urgently and float it up.
"Captain, but the sea area here..." someone next to him raised a question.
"I don't care what kind of sea area this is, I have to ensure the safety of the children first," Peter said.
Peter is a very kind guy, and he always calls his crew members children. Now, his children are facing the most dangerous situation, and he absolutely cannot sit idly by and ignore them.
"yes."
High-pressure air entered the water tank and began to drain the seawater, but at this time, the problem emerged again.
"Bow report, ballast tank failure!"
"Damn, hurry up, troubleshoot!" Peter shouted loudly, how come this Swedish-made submarine always breaks down at critical moments!
The design of the Collins-class submarine is rather special. It only has main ballast water tanks at the bow and stern. Now, the ballast water tank at the bow has encountered a problem and cannot drain seawater, leaving only the ballast water tank at the stern. When
When the tail begins to empty out the seawater, the tail becomes lighter and begins to rise, while the bow goes downward. The entire submarine does not appear to be floating, but rather diving.
"We're still going deep, one hundred and fifty!"
Despite taking these measures, they still could not prevent the submarine from sinking!
"Drain the fuel and increase buoyancy!" Peter shouted loudly. Now they have no other choice! Although they are still 150 meters away from the maximum diving depth, if they do not stop their fall, they will encounter
A terrible crisis.
Drain fuel?
Although this solution is very alternative, it is indeed a solution to the problem!
When a submarine sails underwater, it must ensure that buoyancy is equal to gravity, but what if the diesel engine is operated at the depth of the snorkel? As the diesel engine continues to consume diesel, the submarine will become lighter and lighter. The solution used by the Collins class is a double-layer fuel tank, which contains
There is air outside. When the diesel is consumed, the outside air will be replaced by seawater. In this way, seawater is used to replace the consumed diesel and maintain the normal weight of the submarine.
This chapter is not over yet, please click on the next page to continue reading! This method seems simple, but the problem of seawater mixing into diesel has also troubled them for a long time, causing early damage to the diesel engine. Later, a special filtering device was added to solve it.
Now, they need to drain out the diesel fuel, empty it all, and replace it with air, so as to further increase the buoyancy of the submarine!
This is a crooked idea, but it works!
At critical moments, Peter was also very imaginative.
The sound of high-pressure air continued to sound, and the submarine continued to sink.
"Falled to a depth of two hundred meters!"
"Two hundred and fifty meters!"
"Stop losing depth!"
Finally, at a depth of 250 meters, the submarine seemed to be tamed like a wild horse that had run wild and stopped falling. Compared with its Eastern companions, their biggest advantage is that when encountering seawater cliffs, the depth is relatively shallow.
There is a lot of room for maneuver.
"Thank God." Peter said: "Now, children, let me take you home."
"Report, there is too much water in the engine room, and the main motor can no longer be started!"
"Report, the bow ballast water tank cannot be rectified!"
Bad news continues to come one after another.
"Send a distress signal immediately!" Peter said: "Report to our superiors that we encountered a sea cliff and the submarine has serious quality problems. We are currently parked at a depth of 250 meters and are expected to sink slowly. Please ask them
Rescue, immediately, immediately!"
Now, they have emptied the ballast water tank in the tail and the fuel tank. Normally, they should be able to float. However, due to the water in the tail tank, their gravity is still slowly increasing. Now they are just maintaining balance, and they will follow later.
As more water enters, they will continue to sink.
If they sink again, they will go into hell!
A distress buoy was released from the control tower, floated to the surface of the water, and then emitted electromagnetic waves in all directions.
When she got the news, it was already night, and Swift was about to go to bed. After receiving the news, Swift suddenly lost all sleep.
"It's a sea cliff and a submarine malfunction. It's a miracle that they're not dead yet." Swift said, "Thanks to our nuclear submarines not passing over, otherwise they probably wouldn't be able to get up."
Conventional submarines will not dive too deep, but nuclear submarines are different. After all, once they go to sea, they will almost never surface, and the water depth will allow them to hide better, so they are likely to dive to one or two hundred
meters, then encountered a seawater cliff, fell directly below the extreme depth, and finally over.
Thanks to the fact that it was a conventional submarine, we were able to hold on at a distance of 250 meters.
But what to do next?
"The propeller bearing at the tail of their submarine is leaking. The reason why it can keep from sinking now is because their submarine has emptied all its fuel. But if we wait and seawater continues to pour in, it will still sink. We must rescue it immediately."
"Rescue? How do we rescue? We simply can't launch a rescue in that sea area with great fanfare!" Swift said.
Thanks to not sending a nuclear submarine, even if it is lost now, it has nothing to do with them.
"Are we going to die without saving anything?"
"What else can we do? Ask the Orientals for help, ask the Orientals for help?"
"Report, our early warning aircraft found that two ships were heading towards the accident area."
"What ship?"
"have no idea."
What was displayed on the early warning aircraft was just a bright spot, and it was impossible to show the specific model, so they didn't know.
Swift frowned, and then said: "They made a lot of noise underwater, and the Orientals must have noticed it. Maybe the Orientals thought something happened to their 039C submarine. Next, we need
Just wait and see what happens. It is very likely that the Orientals will take action and rescue the unlucky guy on the submarine. The cliff in the sea is really scary."
When Swift said this, he was not worried at all, but half an hour later, someone came to see him.
"Mr. Swift, our Farncombe is in danger while sailing and is in urgent need of your rescue!" The visitor said nervously: "They are struggling with death underwater now, and they need rescue!"
"We are working hard." Swift said: "Our submarine rescue equipment has been packed locally and is ready to be loaded onto a transport aircraft, which will then be transported over by the transport aircraft..."
"We can't wait that long." The visitor was very anxious: "Currently, the submarine is still taking in water. It won't be long before they can maintain their current balance and will continue to lose depth. Once they start to fall, there will be no more depth."
It’s possible to save! We must rescue immediately!”
"Rescue immediately? How is that possible? Our rescue device is not here at all, and we are helpless. Now, the closest ones are only the Orientals. Do you want to ask the Orientals for help?"
Oriental?
The visitor gritted his teeth: "Okay, then let's go to the Orientals for help. Mr. Swift, we also ask you to help us as soon as possible. If the Orientals don't agree to us, we still need our allies."
Seeing the visitor leave, the assistant was a little worried: "Isn't it a bit..."
"There is a sea cliff there, so what if we go there to rescue? Maybe they will catch up with our rescue submarine! There is no need for us to take this risk for them. Just let the Orientals take the risk."
Shuangsha Island.
This place has become a city that never sleeps. Even at eleven o'clock, there are still many people playing. The lights illuminate the entire island as if it were daytime, and tourists continue to have fun.
Cowell stepped onto Shuangsha Island with a heavy heart. Thanks to the good intelligence work, he was able to know that Mr. Qin was on the island for the first time, and also knew that the deep-submersible lifeboat of the Mingzhou Group was currently operating nearby.
, all this seems to be too coincidental.
However, seawater cliffs are not something that can be discovered casually. They are erratic and unlucky for anyone who encounters them. Therefore, they cannot blame the Easterners for the incident. Now they are not in the mood to think about the aftermath.
, there is only one thing they have to do: let the Orientals take action to help them rescue the crew members from the submarine.
A submarine can sink, but people must be rescued.
"Is Mr. Qin here?" Arriving in front of Qin Tao's villa, Cowell asked the person at the door.
"Mr. Qin has gone to bed. If you have anything to do, we will discuss it tomorrow."
"I'm sorry, I'm in a hurry about this matter."
"It's your business to be anxious. It has nothing to do with Mr. Qin. Mr. Qin and his wife are here for vacation, not for work."
Cowell took out a bank card in his hand: "There are 10 million US dollars in it, which is for Mr. Qin..."
"Is it a meeting gift? If it is a meeting gift, then I can convey it to you."
This is a reward, a reward for asking the other party to rescue you, and now it has turned into a meeting gift?
Kewell was a little unwilling, but he also knew that there was no other way. He wanted to see Qin Tao as soon as possible and settle the matter as soon as possible. The longer it was delayed, the more dangerous the people inside would be.
After a few minutes.
"Mr. Qin has invited me, but I'm offended and needs to be checked first."
The other party touched Kewell's whole body before sending him in.
Qin Tao was wearing pajamas, sitting on the sofa, holding a cup of freshly brewed coffee in his hand.
"Ten million dollars is a meeting gift, just to meet me once. There must be something important and urgent, right?" Qin Tao said: "There is no need for small talk, let's talk quickly."
"Yes, Mr. Qin, we have a submarine that had an accident in the waters of **. We hope that your deep-diving lifeboat can rush to the sea area where the incident occurred to rescue it as soon as possible."
"Oh, so how did your submarine crash and what is its current condition?"