A whale is looking for food. It uses its own ultrasonic waves to search nearby waters. For it, this is already very skillful. It is the only animal underwater that can use ultrasonic waves to locate its location. It can even use
Ultrasonic communication allows sound to travel far and wide.
Suddenly, it heard a huge echo, which meant that there was a big guy in front of it! The whale was stunned for a moment. After listening carefully again, it finally recognized what kind of existence was in front of it, so it immediately turned around
, turned around and walked away, its tail slapped the sea water vigorously, making a splashing sound, spreading around, and then entered the ears of this big guy.
From the appearance, this big guy is very similar to a whale, with a good underwater streamline shape, but it does not move forward by wagging its tail. Behind it, there is a cylinder-like thing, which absorbs the water in front of it.
The sea water was sprayed to the back again, making almost no sound during the whole process.
In front of it, there is something more on the back. At this time, inside the device, there are some sailors wearing sea soul shirts and officers in uniforms.
"The sonar reported that the whale fifty kilometers away had turned around and swam away at a very fast speed."
"Well, we were scared away." The captain said excitedly: "It only discovered us fifty kilometers away, and we have already discovered it more than two hundred kilometers away. Our side sonar array
It’s so useful!”
"Yes, it is precisely because of it that we can greatly reduce the frequency of use of towed array sonar. Under normal circumstances, only using the bow sonar and side sonar array is enough, unless a situation is discovered and needs to be carried out.
Round up." The first mate said from the side.
They are very proud because they are driving the most advanced 095 nuclear submarine in China. The displacement of this nuclear submarine reaches 8,000 tons. Because this displacement is large enough, the interior space is very spacious. They finally bid farewell to the hot bunk, and everyone
There are independent beds, not to mention other features of the submarine, which they are full of praise for.
"It's a pity that there is only one, but I heard that two more will be started together in the future, an attack nuclear submarine and a ballistic missile nuclear submarine. The latter is said to have a displacement of over 10,000 tons."
"That's for sure. Generally speaking, the displacement of a ballistic missile nuclear submarine will be more than half larger than that of an attack nuclear submarine. I predict that the displacement will exceed 12,000 tons."
"Really? That is our most powerful submarine underwater!"
In the past, the 091 only had four to five thousand tons, and the 092 was less than 10,000 tons. There are no submarines in the East with a displacement of more than 10,000 tons, but now they finally have one!
"Wouldn't it be necessary to have two nuclear reactors? The operation of our nuclear reactor is really good, much better than the previous 091!"
The captain listened to the discussion of these men and did not stop them.
Submarine soldiers are different from other arms. Since they are underwater for a long time, they never see the light of day once they go to sea. They usually see only a few familiar people. As time goes by, their mood will change. Everyone is free to joke around and think freely.
A look at the future will be of great help in improving combat effectiveness.
Even now, even if they are in front of the dual aircraft carrier formation and clearing the way for the aircraft carrier formation, they don't have to be too rigid.
That's right, they are in front of the dual aircraft carrier formation!
The aircraft carrier formation not only has what is seen on the sea, but also has silent confrontations under the sea. During the navigation process, the aircraft carrier formation must ensure underwater safety!
Even if there were 091 or even 093 in the past, because the nuclear power system was not powerful, once the aircraft carrier formation sailed at full speed, the nuclear submarine would not be able to keep up. This was inappropriate.
Now with the 095, this problem can finally be solved. However, in order to avoid being discovered by the outside world when the speed is too high, under normal circumstances, they will maintain a silent speed of fifteen knots underwater. Anyway, fifty nautical miles ahead of the aircraft carrier formation, the aircraft carrier
If the formation takes off carrier-based aircraft at full speed, it won't have much impact.
At this speed, the main circulation water pump does not need to be turned on, and the submarine is the quietest.
At this moment, suddenly, the sonar soldier reported again: "A new signal source was found and is slowly approaching!"
"Compare the database immediately!"
"The report is *** level! The current distance is 130 kilometers!"
If it were a previous submarine, it would be absolutely impossible to detect the other party at such a long distance. In fact, because it makes more noise, it is likely to be discovered by the other party in advance!
Now, now that you have discovered it, what should you do next?
The simplest way is to use active sonar illumination! If you scare them to death, they will definitely turn around and flee, but at the same time, your position will be exposed.
"Use blue-green light communication and tell the fleet!"
They don't have to make their own decisions and see what the higher-ups will do to deal with it.
It was once quite difficult for submarines to communicate underwater, but engineers also faced the difficulties and came up with various communication methods. Blue-green light communication is one of the most advanced underwater communication technologies currently.
After scientific research, it was found that the absorption of blue-green light by seawater is the smallest. At a distance of two thousand meters, the attenuation is less than 10%. In fact, as long as it is five hundred meters away, the signal can be emitted.
For submarine communications, the biggest obstacle is seawater. As long as you pass through the seawater, the rest is easy.
This technology was proposed in the 1950s and 1960s, but to actually use it, it still lacks the relevant components: a light source that emits blue-green light!
Flashlights definitely won’t work, and other means are needed. The first thing to be developed was lasers. The Americans developed blue-green lasers in the 1980s, but this light source was not suitable.
In 1993, Shuji Nakamura of the island country successfully greatly improved the brightness of blue LED. From then on, this kind of light-emitting diode can be used for lighting and LED communication. Then, Dongfang developed the laser diode.
The emergence of this technology immediately made laser communications develop significantly. It not only allows blue and green light to travel a long enough distance underwater, but also transmits data at a high rate underwater!
This chapter is not over yet, please click on the next page to continue reading! How fast is it?
Dongfang uses frequency division multiplexing technology, which allows it to achieve a transmission rate close to 10GB!
You can watch high-definition movies, not to mention simply send a message.
Currently, this technology is available on 095.
The blue-green laser beam passed through the sea and flew into the sky. A carrier-based helicopter flying on the sea immediately received the laser beam and then transmitted it back through the data link.
"Take off our fixed-wing anti-submarine aircraft!" Zhang Zhen said excitedly.
The propeller fixed-wing aircraft on the deck include not only AWACS aircraft with large plates on their backs, but also aircraft without large plates on their backs! The bodies of these aircraft are exactly the same as those of the AWACS aircraft. They are other professional combat aircraft, including anti-submarine aircraft and transport aircraft.
The biggest advantage of fixed-wing aircraft is that they are fast!
Helicopters can only travel to the target area at a speed of two to three hundred kilometers per hour, while fixed-wing aircraft can reach a speed of more than 500 kilometers per hour! It may not matter if the distance is short, but it will show a huge advantage if the distance is long.
Got it!
This is also a performance that only the 002 aircraft carrier has. After all, it has a straight deck and the bow can dock aircraft. The 001 aircraft carrier can only take off with its head tilted up, but cannot do anything else, which is very wasteful.
On the other side, aircraft carrier 001 can only look at it with envy.
"Hmph, when it comes to improvement, we must cut off the warped head!"
"This is quite annoying, but I heard that relevant domestic departments are developing tilt-rotor aircraft. When this kind of aircraft is successfully developed, we can also equip similar aircraft that can take off and land vertically, but they fly very fast when flying horizontally. That is
The direction of future development!”
If helicopters can be replaced by other aircraft, it would be tilt-rotor aircraft, which not only have the flexibility of vertical take-off and landing of helicopters, but also the fast speed of fixed-wing aircraft. Once this kind of aircraft is successfully developed, helicopters will have to
Was eliminated!
Qiongzhou, seaside.
"Mr. Qin, the airport has already coordinated. You can take your wife and daughter to Shuangsha Island tomorrow." Xu Zhengyang said.
"Well, if you want to go out and play, you have to coordinate with the airport, and the speed of the helicopter is too slow. By the way, how is the progress of our tilt-rotor aircraft?"
"It is said that the progress is going smoothly. The overall design plan is one level higher than the American plan. If you want to know more, then I..."
"No, let's play with Xue'er first, and then we'll talk about it when we get back."
Zhao Ling smiled at the side, knowing that Qin Tao was having a temper. Qin Tao didn't know about the 003 aircraft carrier sea trial, so he simply stopped working passively and just played around all day long, which was more comfortable.
However, after working for such a long time, it’s time to take a break.
Speaking of this tilt-rotor aircraft, it was also Qin Tao’s idea.
The Yankees' V-22 tilt-rotor aircraft only solved the problem of availability, but did not solve the performance problem. After it was equipped with troops, serious problems frequently occurred, and it often fell to death. Therefore, veterans did not like to ride on it and would rather
Take an old Black Hawk, not a V-22.
If Dongfang wants to develop a tilt-rotor aircraft, will it follow the same path as the Americans?
of course not!
Qin Tao knew that after the Americans realized the shortcomings of the V-22, they built the next generation V-280. In this tilt-rotor design, the engine no longer rotates, and only the gearbox rotates the rotor.
In this way, the weight required to rotate is greatly reduced, which can significantly improve reliability.
The reason why the V-22 is unreliable is because it rotates together with the engine. This engine is so big that a person standing in front of it is very small. It weighs at least one ton. To rotate such a big thing,
It also has to move flexibly, which is not an easy task. If anything goes wrong, the machine will be destroyed and everyone will be killed.
By only rotating the rotor, you can rotate a weight of one or two hundred kilograms at most, so it is naturally easier to rotate! Moreover, without rotating the engine, it also greatly reduces the complexity of the transmission shaft connection in the middle of the wing.
A tilt-rotor aircraft requires an engine on each side, but these engines cannot guarantee that there will be no problems. What if one of them suddenly stalls during takeoff and landing?
This will definitely be a tragedy that destroys the machine and kills people.
If you want to avoid this, you have to pass a drive shaft through the middle of the wing and connect the engines on both sides together. In this way, although there is an engine on each side, they actually work in parallel. Once one of them suddenly stalls, the other
One unit will over-power and make an emergency landing.
If the engine rotates, the transmission mechanism inside will be quite complicated. Now it is changed to just rotate the propeller, which is easy.
In fact, Qin Tao is quite looking forward to this kind of aircraft. After all, this is a type of aircraft that can replace helicopters. When the research and development is mature, his transportation company will definitely equip a batch of them. As for whether he will take it... then
talk later.
Qin Tao continued to play with his daughter on the beach. This was the most meaningful time he had spent in these years. He had a wife and a daughter, and lived a happy life every day.
Some people on the 095 nuclear submarine are also flattered.
"I heard the sonar sound of water falling into the water, and the location was very accurate!"
"The other party started to accelerate underwater!"
"What can't be run away is completely under our control!"
"It'd better come up, otherwise..."
Everyone is very excited.
“It’s so enjoyable!”
Everyone is very emotional, things are changing!
"Our navy has become powerful!"
"Yes, we are capable of completing any mission assigned to us by our motherland!"
"Speaking of which, ours is not very exciting. The 055 and the 052 are doing the most exciting things."
Although they did not receive relevant information, and they would not receive it, they could listen. With the advanced sonar equipment on the submarine, of course they heard the whereabouts of the two warships. Thinking of what they were going to do,
Everyone was full of envy.
This chapter is not over yet, please click on the next page to continue reading! "Actually, we can definitely go." A crew member said: "During the Cold War, Lao Maozi's submarines and Yankee submarines carried out various activities in the ocean.
The silent confrontation is a wonderful thing, what Lao Maozi likes to play most is Crazy Ivan."
Crazy Ivan, also known as the Soviet Union, is a helpless and crazy plan limited by technical conditions.
In the past, submarines only had bow sonar, which meant they could only hear movements in the front hemisphere. The most dangerous situation when a submarine was sailing was that an enemy submarine was catching up behind it, but the submarine itself knew nothing about it.
At the height of the Cold War, things like this were common.
In order to be able to detect the situation behind him, Lao Maozi's submarine would suddenly make a 180-degree U-turn at full rudder every once in a while. In this way, if the submarine was following behind, it would be exposed to its own sonar without enough time to react.
However, if you follow too closely, a collision will occur.
This is not a joke, it is a real thing. In the 1970s, there was a fierce collision. The Yankee's Sturgeon-class "Southern European Mackerel" was knocked unconscious and fell asleep.
The cans flew out, and the cans in the restaurant were flying everywhere.
In 1992, the USS Baton Rouge also suffered a collision and almost missed the landing.
"Of course we can't do that. We have the most advanced nuclear submarine in the world on hand. We don't need to do that kind of action at all." The captain shook his head.
We don’t just have bow sonar, we also have side sonar and towed sonar. We can know the surrounding situation clearly, so there is no need to do such dangerous actions! Even if it is
If you don't know what's directly behind you, you can tell by turning at a small angle. You don't need to do this dangerous maneuver. If you do it like that, it will make a lot of noise!
Yes, we have the most advanced nuclear submarine on hand! Everyone feels proud again.
On the sea, two warships rode the wind and waves and continued to sail in the direction of the rising sun.
Yes, these two warships are the most enviable in the entire formation! Before the two 901 ships arrived at the formation, they received the 903 comprehensive supply ship that set out a few days in advance and was waiting for them in the predetermined sea area. It was completed
supplies, and then left the formation.
Li Pingfan stood on the bridge, looking at the sea in the distance, feeling excited.
The shipboard radar has long been working at full power. The four main shields below and the four small shields above are radiating powerful electromagnetic waves to the surroundings. No matter it is high altitude or ultra-low altitude, all kinds of targets cannot escape its sharpness.
s eyes.
"Report, the marine resource exploration satellite has just sent the chart. It is safe near us." The first mate said.
Warships certainly cannot fight alone and require cooperation from all aspects. Satellites in space will also play an important role.
"Well, it seems that we don't need to take off the ship-borne early warning helicopter for the time being. We will continue to sail forward." Li Pingfan nodded: "This ocean will also be a sea area where our navy will often visit in the future."
From now on, we will not be able to enter the four oceans in the world except the Arctic Ocean. All other sea areas will be our stage!
In the east, Qin Tao brought his daughter and wife to Shuangsha Island.
Shuangsha Island is closer to the tropics, so its conditions are more suitable for tourism. In recent years, several islands in the southern sea have been developed and have become the first choice for many people to travel. Shuangsha Island is the first one to be developed.
When we came out, it was even more crowded with tourists.
Looking at the bustling crowd on the beach and the heads emerging from the sea in the center, Qin Tao had the illusion that he had returned to a tourist attraction during the seven-day holiday in China. Can it accommodate so many people?
Village chief Zhang Haiyang and several of his men greeted him at the airport. When he saw Qin Tao coming down, he immediately went to greet him.
"Mr. Qin, welcome home. Your house has been packed up for you and you can move in at any time."
“How do you arrange accommodation for so many tourists?”
"There is no need to stay. Everyone takes the morning flight and the evening flight back. It's a one-day trip." Zhang Haiyang said: "However, there are indeed a lot of people. We will restrict flights in the future."
"There is no need to limit it. More people is a good thing. We have to find a way to expand the number of tourists we receive. It seems that we have to expand the island several times more, or build a few more islands nearby by reclamation." Qin Tao said.
.
"Yes Yes."
At this moment, Qin Tao's cell phone rang. He originally wanted to hang up, but he still glanced at the number from the corner of his eye and quickly answered it.
"Hey, Nicholas, my friend, why did you remember to call me?"
"What? Congratulations? Congratulations for what? Our warships are sailing freely on the ocean? Yes, free navigation is our right."