Chapter 490: 039B foreign trade version submarine launched
Behind the package?
Several people looked at the back in surprise. There was a huge round bump there, which was also a device that was more advanced on this submarine than the Kilo class: a pump-jet thruster.
At present, the world's mainstream submarine propulsion method is still a seven-blade inclined propeller, and some even develop it to nine blades. The pump-jet propeller is still a product of the tireless development of various countries. Except for the United Kingdom, other countries are still exploring
.
Our own side has already used this advanced thruster, which is one of the reasons why the Pyramid State finally placed the order.
Only the propeller will be wrapped with a piece of cloth when it is launched into the water, so as to prevent people from seeing the specific structure of the propeller, and then infer the underwater acoustic characteristics of this propeller.
The pump jet propeller has a shell on the outside, and the devices inside are covered, so in theory, it doesn't matter if outsiders see it.
Why did Mr. Qin still ask to cover it?
However, since Mr. Qin said it, he must have his intention.
Yang Youwei nodded immediately: "Okay, we will keep it confidential. Do you have any other requirements?"
Qin Tao shook his head: "There is nothing else. We must make preparations for entering the water this time. There will be many people watching, but we can't make any mistakes."
"Mr. Qin, please don't worry about this. We are using the most mature orbital launch method and there will be no problems." Kvasa assured him, patting his chest beside him.
Submarines are manufactured in a closed factory, so after they are manufactured, they have to go a certain distance before they can be launched into the water. It is definitely impossible to build the factory directly on the seaside. There is always a distance. Therefore, the methods for launching ships are all
unusable.
If it is just temporary manufacturing, then the submarine will be built directly on multiple wheel chassis, then towed out, slowly to the seaside, and then launched into the water. If it is a professional shipyard, it is usually equipped with tracks, just like railway tracks.
Similar to dragging out a submarine weighing several thousand tons.
Mingzhou Shipyard has little experience in this area, but Kvasa does! The development and growth of Mingzhou Group cannot be separated from the contributions of these people.
A few days later, the sound-absorbing tiles were laid, the scaffolding was removed, and the launching ceremony was ready.
At the gate of Mingzhou Shipyard, Qin Tao personally greeted Mamish and his party.
"Welcome to Mingzhou again."
Mamish was also smiling: "Mr. Qin, thank you for the advanced submarines you built for us. They will become the most powerful underwater force of our navy!"
Mamish said, looking towards the beach in the distance. At this time, the submarine waiting to be launched had been pulled out of the closed workshop, and its majestic appearance was revealed just outside the workshop.
The beautiful streamlined shape is like a large whale on the bottom of the sea. The entire submarine is black and the tail is wrapped in blue cloth, giving it a special charm.
"Everyone please."
Everyone walked towards the submarine, and when they walked over, they would inevitably pass by the 100,000-ton slipway. At this time, the slipway was also in full swing, and warships were being built one after another.
"Is there 054 on it?" Mamish asked.
"Yes, we are building a foreign trade version of 054 for Pakistan, but you can only watch it from a distance and cannot go up. I'm very sorry."
Want to see it? You have to spend money to purchase it!
Now that we have submarines, we also need to purchase surface ships. Our Eastern products are definitely of high quality and low price.
After fooling these people again, they finally arrived at the launching ceremony.
A group of people also came from the Eastern Navy, almost all of whom were submarine professionals. Zheng Ming was in charge of leading the team. When he saw Mamish and others, he immediately came up to shake hands enthusiastically: "Everyone, your choice is extremely wise.
This submarine is the most advanced of its time!"
"That's right, the most advanced submarine in the world!" Mamish was also very excited.
On the stage in front of the submarine, Mamish first delivered a passionate speech.
"We, the Pyramid State, have always had friendly relations with Dongfang, and we are also very happy to obtain Dongfang's most advanced diesel-electric submarine!" Mamish's voice echoed on the river beach: "Currently, the navy has officially decided
,name this submarine S41!"
Want it to the death?
Qin Tao was speechless. This boat number was unlucky. However, this was just Chinese pronunciation, not English or Arabic, so it was definitely not like this.
Therefore, he was relieved. Naming was the other party's business and he could not interfere.
In the sky, a reconnaissance satellite flew over and aimed at this beach. After adjusting the focus, it sent back photos one by one.
"The overall appearance is similar to the Kilo class, except that the hull looks longer." An expert analyzed: "They claimed that this is an AIP submarine. Is it possible that an AIP cabin was added to it?"
"The tail is also wrapped, but it can be seen that pump-jet thrusters are indeed used. When did they master this pump-jet thruster technology?"
These submarine experts are very curious about the progress made in the East.
"We don't have to worry. Since it belongs to the Pyramid State, we can use military assistance in exchange for it. We can go on this submarine and have a look. There are no secrets in our eyes about the submarines made by the Orientals."
"We can also say that the performance of their submarine sonar and other equipment is lagging behind, and ask us to help them replace it with our related products, but we must first understand the performance of the equipment."
"Yes, let's look at the progress of their sea trials. This shark has no secrets in our eyes."
"Do you think there will be any problems with this submarine, such as miscalculating the buoyancy and sinking after launching?"
Everyone laughed.
Mamish's speech is over.
"On behalf of the Mingzhou Group, I would like to thank the Pyramid State Navy for its trust in us. This is the most advanced diesel-electric submarine in the world. It has a large number of advanced technologies. It adopts a single-double hybrid shell structure and adopts the most advanced technology produced in our country.
With advanced sonar equipment, AIP system installed, and pump-jet propulsion at the tail, this submarine is the pioneering work of our Mingzhou Group, and it also puts us at the pinnacle of diesel-electric submarines as soon as we debut!"
Of course there will be reporters at such an important moment. The cc*v reporters who came specially from the capital have set up cameras and are waiting for them to appear on the TV tonight.
Of course, it's impossible for ordinary reporters to come in and take random photos of the crowd.
"This is just the beginning. We will continue our efforts in the future to develop more advanced submarines and let the world feel our Mingzhou speed!"
There was another round of applause, and the word "Mingzhou Speed" quickly spread and became the most popular word this year.
Colorful flags were fluttering, flags were flying, and the huge diesel-electric submarine was slowly being dragged toward the river like a giant.
(I haven’t found any information, so I don’t know if wine bottles were thrown into the water when the submarine was launched.)
Everyone followed it and walked slowly.
"The next sea trial work will be carried out by your navy and us. Please rest assured that we will definitely make it meet the design requirements." Qin Tao and Mamish walked together, talking as they walked: "We
Mingzhou Group has this strength."
"Well, I believe in your strength." Mamish nodded.
"After the sea trial is over, do you plan to drive it back or tow it back?"
"Tug it back, just like you did when you purchased the Kilo class." The distance is still too far, and Mamish is worried about driving back.
"Then please rent a semi-submersible boat in advance to transport it."
Rent a semi-submersible boat in advance?
Mamish was stunned: "Why, aren't you going to deliver the goods to our door?"
"Our agreement did not include this item, and we do not have time for our Shenzhou, which is undertaking the refitting task of our destroyer No. 138."
Mamish could only nod. Qin Tao was right. Even if the Mingzhou Group wanted to help, they did not have the strength. After all, their floating dock was undertaking the modification work of the navy's most important 10,000-ton drive.
"After you take this submarine back, you must keep it secret." Qin Tao said: "It contains the most advanced submarine technology in our country and the most advanced in the world. Many countries will covet our technology.
"
Coveting your technology?
Mamish glanced at Qin Tao in surprise, indicating that he didn't understand.
"Only your most professional submariners can board this submarine. Idle personnel cannot board it, especially Westerners."
When Qin Tao said this, Mamish suddenly realized that Mr. Qin was wary of Westerners!
"Mr. Qin, please rest assured that nothing will go wrong." Mamish said firmly: "We will not let Westerners board our submarines."
"What if they are doing it under the guise of military aid? Or what if they are doing it under the guise of improving submarines for you?" Qin Tao asked.
Mamish stopped talking now.
At present, the main submarine of their navy is the 033 purchased from the East. After this kind of submarine served in their hands for a period of time, they felt that its performance was too poor. Therefore, the Americans enthusiastically stepped in and said they would help upgrade it.
It was indeed upgraded. The Americans improved the 033 submarine with advanced sonar, fire control, and torpedoes. After this upgrade, the 033 submarine of the Pyramid State continued to serve and has not been retired until later generations.
But at the same time, during this improvement, the Americans have also fully understood the 033 submarine. In the eyes of the Americans, this submarine no longer has any secrets.
Since it is very old, even if Americans see it, there will be no problem.
However, the 039b foreign trade version in front of us is different. The performance of this submarine is very powerful. It is already a world-class diesel-electric submarine. Even the domestic navy is not equipped. Therefore, this submarine must not be studied by the Americans.
of.
Of course, in terms of technology, Mingzhou Group still has a backup plan. It doesn't matter even if it is studied, but it must be avoided if it can be avoided, so now, Mamish must be vaccinated.
Mamish's heart was churning.
Yes, if the United States wants to provide them with military aid and help upgrade submarines, will they agree or not?
"In this submarine, we have made some leak-proof designs." Qin Tao said: "For example, when installing many equipment, special screws are used, and strips are attached on them. If they are torn off,
If it is opened, we will not be responsible for subsequent maintenance work."
Mamish was stunned, had he already made preparations?
"As well as those advanced electronic equipment, we have some built-in chips inside. As long as they are found to be disassembled and studied, the system will stop operating, including the pump-jet thruster at the tail. At the same time, we will also give up subsequent maintenance work.
"
To put it simply, the Mingzhou Group has no ability to prevent Westerners from boarding submarines and stealing secrets. Since it has been sold to the Pyramid State, it belongs to the Pyramid State, and the Pyramid State has the power to decide who should not see it and who should not see it.
However, ugly things can be said up front.
If you let others see it, then we will not care about the subsequent maintenance.
Back in the 1980s, when the country was just opening up, it was very cheap to buy weapons domestically, and the market was opened up with low prices. However, at the same time, because of the low prices, users complained: Just sell them, don't care about maintenance!
Those J-7 fighters are sold and left alone. If users encounter problems during use, they should solve them by themselves.
So, this creates a bad impression on customers.
We are already in the 1990s, and of course we cannot export weapons so extensively. The equipment exported by Mingzhou Group all has a five-year warranty. If there is a problem within five years, door-to-door service will be provided at any time.
If users have problems in the future, they can also pay for maintenance.
This way you can control the opponent.
If you let outsiders board the submarine, or even dismantle the equipment inside for research, then I'm sorry, but we won't care!
Apart from anything else, they will replace the sonar equipment whenever they want. The American products they will replace later are really advanced, but there are advanced electronic devices in them. As long as they are dismantled, the power system may not work!
This chapter is not over yet, please click on the next page to continue reading the exciting content! Can the Americans help them restore their power system?
Don't be kidding, Americans don't have diesel-electric submarines, they all have nuclear submarines!
Dongfang's power system: all-electric propulsion, medium-voltage DC, Stirling engine, plus pump-jet thruster, is definitely the most advanced in this era. If this system is destroyed, they will definitely have to
Want to cry without tears.
Therefore, the risk is too high. No matter how many benefits the Americans offer, they have to consider it. After five years, they may still agree.
However, by that time, the technology on this submarine was no longer advanced.
The Pyramid State has a unique advantage. Western countries are wooing them, Lao Maozi is wooing them, and even the East has a good relationship with them. Therefore, they are one of the few countries in the world that can obtain various military equipment.
What should be defended must be defended. After all, the opponent is unreliable. If it is Lao Ba, there will be no problem.
Mamish's face looked a little ugly, turning red and then white. He seemed to want to get angry, but in the end he held it back and managed a smile: "Don't worry, we won't let outsiders touch our equipment.
"
The submarine slowly slid into the water.
In some countries, when a submarine is launched into the water, a special float valve is used to carry the submarine on it. Even the launching ceremony is held on this float valve. However, since the Mingzhou Shipyard has completely built the submarine
Well, there is no need to pay attention to these. After entering the water, you can conduct various tests.
The tugboat came over and towed the submarine to the outfitting dock. Although it no longer needed to be outfitted, work such as refueling and watering still had to be done. While these tasks were being done, everyone could go in and visit.
On the outfitting dock, it is easiest to enter through the front hatch.
"The torpedo cabin can not only launch conventional torpedoes, but also our submarine-launched version of the C801 missile, which has the ability to strike enemies dozens of kilometers away." Qin Tao introduced to everyone.
Due to the small space, not many people came in. Mamish, Zheng Ming and Qin Tao walked together and visited as they walked.
After visiting the torpedo room, go to the back and you will find the battery room on the lower floor.
"These batteries have been installed when we were welding. They use our latest domestically developed long-life batteries, which can have more than 400 hours of charge and discharge, and can be used normally for four to five years. Moreover,
Since we can use the AIP system underwater, the number of charging and discharging times of the submarine is greatly reduced. In extreme cases, it can be used for more than ten years without any problem."
Like electric bicycles, the batteries used in submarines also have a lifespan. It does not mean that they cannot be used when the lifespan is reached, but after reaching a certain level, the capacity of the battery will decrease. Generally, 80% of the capacity will be left.
Defined as life span.
At this time, the next step is to charge it more often. It doesn't matter for an electric bicycle, but it will be fatal for a submarine.
Therefore, it is generally necessary to replace it when its life span is reached.
In this regard, the international mainstream level is four to five hundred charge and discharge cycles. Only France has the most advanced technology, which can reach 750 cycles, and it was achieved in the late 1980s.
Anyway, with the aip plug-in, the number of times the battery is used will be greatly reduced.
"At the same time, we have reserved a special passage for technicians to go in on a trolley for inspection and maintenance."
After reaching the end of its life, the battery needs to be replaced, and it also needs maintenance at ordinary times. These require special means. Hundreds of batteries weigh thousands of tons. The single piece of equipment in a diesel-electric submarine that consumes the most volume and weight is this battery.
.
After looking at the battery compartment, there is the tall AIP compartment behind it, and then the engine compartment.
Submarines in the previous era used the engine to directly drive the propeller at the tail. When switching to underwater mode, it was switched to an electric motor. During the power transmission process, various noises would occur.
Therefore, modern submarines use electric propulsion, as is the case with the Kilo-class. The diesel engine is only used to generate electricity. The generated electricity drives the electric motor at the tail to rotate the propeller, which can be directly switched with the battery power.
Although only three diesel engines are used, due to the use of an advanced twelve-phase generator system and pump-jet thrusters, its speed can still meet the requirements.
"Our power system is at the most advanced level in the world. Even the United States does not have our technology." Qin Tao is very proud.
Across the ocean.
Some people are still studying it. This 039b submarine has attracted their attention since it was launched from the factory.
First I looked at satellite photos, and then I looked for various data for analysis.
"Everyone, look what I found." One person said happily: "I found its power information. It uses three MTU engines!"
This is public information in the brochure. They didn't pay attention to it before, but now, they finally found a gap.
"The Pyramid State ordered a total of two ships. Due to insufficient funds, the two ships were built separately. The first ship was launched before the construction of the second ship started." Another person was also very happy: "We only need to ask MTU Company to stop exporting 396 diesel engines.
, can destroy their project!”
"Yes, how can MTU export this kind of diesel engine for military use? It only has the power for civilian use, which is a serious violation of our regulations."
They finally found another excuse!
"Hey, look, it's strange. There seems to be smoke coming out of this dock?"
A person was in front of the computer screen and quickly sent instructions. The satellite camera that was originally aimed at the outfitting dock began to focus on the dock.
Originally, this dock was their focus. Satellites visited it every day and took photos. Today they fine-tuned the camera.
This chapter is not over yet, please click on the next page to continue reading the exciting content! Now, there is smoke coming out of this dock. What is going on?
"Have they installed the boiler and are testing it?" Someone frowned.
Originally, they were not very confident about this project, especially after the outer shell was polished, they realized that they had been cheated. The rust of the ship was not serious at all, and it was as good as new after polishing!
This made them depressed for a long time, but there was nothing they could do.
Now, if there is smoke coming out of the chimney of this big guy, it means it has an engine installed and it must not be used as a ship jam!
They started to feel a little worried.
The refresh of data is very slow. After all, it has to be transmitted through synchronous satellites before it can reach them. The microwave communication speed in this era is not very fast.
The screen was refreshed one by one, and after three lines were refreshed, the chimney of the ship island appeared.
"No smoke, no smoke!" Seeing that the chimney was still the same, they relaxed.
But if it’s not the chimney that’s smoking, then where is the smoke?
The picture continued to refresh, four, five, six, and finally, the location of the smoke appeared!
"The lift at the back, smoke coming from the lift!"
The deck was intact, but the smoke came from the lower level. The elevator was originally open, and at this time, billowing black smoke was coming out.
"Why is there smoke there? Is it a fire?"
When this guess was revealed, everyone became excited.
When a warship is being repaired, electric welding is required. In the internal enclosed space, electric welding can easily ignite something, and because it is being repaired, the damage control is not complete. Once a fire breaks out at this time, it will be difficult to put out.
Generally speaking, when the black smoke reaches this level, the flame must be very big, and maybe it is already burning over a large area.
This ship is hopeless!
"That's great. They spent so much money and used so many tricks, but it's all useless now. A single welder can solve our hidden dangers!"