Chapter 711 Tailor-made for Lao Ba?
It is very common for technicians to be careless and not take a shower for many days because of their busy schedule. Qin Tao can accept this. When he sees the woman coming in front of him, Qin Tao feels a little guilty. He has many things to do. He couldn't even care about it. He hadn't been to the Fourth Design Department of Mingzhou Group for a long time.
The person in front of me is, of course, the head of the Fourth Design Department: Alexeyeva! When she was fooled by Qin Tao, she was also taken seriously, and a design office was specially set up to develop ground-effect aircraft technology.
Thanks to their efforts, Peace Dove No. 1 has officially entered commercial operation. This ground effect aircraft can be seen in amusement parks in various coastal cities. It is even more exciting to ride on this ground effect aircraft at Shuangsha Island Fishery Resort. A must-have travel item for tourists.
However, Alexeyeva will never stop there. After the success of Peace Dove 1, she began to work tirelessly to develop Peace Dove 2. According to the plan, its back can carry six anti-ship missiles. It is the terrible **** of death on the sea, and also the dove of peace that protects the waters of the motherland.
However, the development of No. 2 encountered big problems.
Shuangyang Factory is responsible for production. They have a special Peace Dove production line. Peace Dove 2 is also produced there. However, the engine needed for Peace Dove 2 has not arrived, so that the Peace Dove cannot continue to be built at all.
Alexeyeva was very anxious. She didn’t know how many times she had urged Zhao Shunli here. Now that she saw Qin Tao coming, she ran over immediately. What you said must not be ignored.
“Well, what kind of engine does our Peace Dove II need?” Qin Tao asked.
“At least a thrust of more than 600 kilonewtons is needed to meet the needs of PAR technology.” Alexeyeva said.
The most similar thing to the Peace Dove 2 is the Flower-tailed Dove. This ground-effect aircraft has a maximum flying weight of about 250 tons. It has six anti-ship missiles on its back, and a short wing in front of the nose, which is arranged side by side. Four engines, NK-87 engines from the Kuznetsov Design Bureau, each can provide more than 100 kilonewtons of thrust. What are these engines used for?
Of course it is an impact impact, which is PAR. (Seems like it’s also called power increase?)
When an aircraft with wings flies close to the ground or the sea, the air from the front will have to flow through the lower surface of the wings. Since there is not enough space under the wings, the gas will be congested and the pressure under the wings will increase. will increase, dragging the aircraft up, which is the ground effect.
This kind of lift is different from the lift generated by ordinary wings. The lift of ordinary wings generally comes from the leading edge of the wing, while the lift of ground effect aircraft comes from the bottom of the entire wing, so it is more efficient. However, this requires the aircraft to have enough Speed matters.
At zero speed, the wings will not produce this kind of ground effect. In this way, the take-off weight of the ground effect aircraft will be greatly limited. If this situation is not changed, the ground effect aircraft will not be practical.
Therefore, Lao Maozi used this technology to place a row of engines in front of the nose of the aircraft. These engines generate airflow and blow it to the lower surface of the main wing behind it. This can significantly increase the take-off weight of the ground-effect aircraft, and it can also Provide thrust and achieve multiple goals with one stone.
However, this also requires powerful engines. The eight engines placed in front look spectacular, and the fuel is burned very quickly. The take-off weight of the Dove is two hundred and fifty tons. Even if it only holds fifty tons of fuel, it will still be inside the aircraft. It's outrageous to say that, but this amount of fuel can only allow it to fly one or two thousand kilometers. If it is placed on an An-124 transport aircraft, it can fly tens of thousands of kilometers.
Now, the take-off weight has been reduced to two hundred tons and has been optimized at the same time. After Alexeyeva's calculations, it is enough for the front engine to provide at least six hundred thousand newtons of thrust. However, is an engine of this level easy to find? ?
Of course it’s hard to find! The fighter's engine has a thrust of more than 100 kilonewtons, which is afterburning thrust! Normal military thrust is tens of kilonewtons. Only engines from transport aircraft and passenger aircraft are suitable. However, these engines are not easy to find. For example, the D-30K engine commonly used in transport aircraft is used in modified H-6s even if it is imported in China. Yes, now the group really has not coordinated with the Fourth Design Bureau.
Alexeyeva doesn’t care about this. If she doesn’t get an engine, she won’t be able to fly! So at this time, Alexeyeva was very anxious and full of expectations. Since Qin Tao was here, he had to help her solve the problem!
“Can an engine with more than 10,000 horsepower work?” Qin Tao asked Alexeyeva.
The other party frowned: "Mr. Qin, as a shipbuilding expert, it seems you don't know much about the aviation industry. We only talk about thrust, not horsepower."
In the propeller era, fighter engines were measured in terms of horsepower. Before World War II, engines with a few hundred horsepower were already very powerful. But by the end of World War II, the most advanced piston engines could already output one to two thousand horsepower. This is still used on fighter jets and bombers, and can even output three to four thousand horsepower. At this time, it seems that no one has heard of the thrust of how many kilonewtons.
However, in the jet age, the thrust is only a few kilonewtons. From the first-generation jets’ thrust of more than a dozen kilonewtons to more than a hundred kilonewtons now, no one mentions the horsepower of the engine. How is this going?
Of course the measurement standards are different.
In fact, when an airplane flies forward, it needs to push gas backward. Whether it uses a propeller or a jet engine, the principle is the same. However, in the propeller era, the amount of thrust an engine can provide is not only related to the engine, but also to the propeller. The efficiency is related. To make it simpler and clearer, let’s just talk about the power output of the engine.
In the jet age, when it comes to direct injection, of course, how much thrust is needed? But how much does it need to be converted into horsepower? Then you have to add a power turbine at the back to turn it into a turboshaft engine to measure the horsepower index.
Of course, under ideal circumstances, power and thrust can still be converted. This is the formula P=F*V. How to convert horsepower and power depends on how fast the speed is. The faster the speed, the smaller the thrust. This is the same in cars and ships. (There seems to be an algorithm. According to experience, 15N thrust can be basically converted into 1 kilowatt of power.)
Qin Tao made a big mistake, and everyone was a little embarrassed, but Qin Tao was not embarrassed: "The aviation industry doesn't talk about horsepower? In the technical specifications of the D-227 engine, the maximum output power is 14,000 horsepower, and the normal output power is Eleven thousand horsepower, why haven’t you heard of the thrust of this engine?”
The aircraft engine not only has a turbofan and a turbojet, but also a turboshaft and a turboprop. (Paddle fans are also available.)
“Mr. Qin, are you saying that you can get the D-227 engine?” Alexeyeva opened her eyes wide.
"Well, we just talked about this matter. It is still a secret." Qin Tao said: "Our Tianjiao Aviation may open a new production line in the later stage to specialize in the production of D-227 engines. Therefore, if this engine can be equipped with When Peace Dove 2 comes aboard, our power problem will be solved, and we can provide ourselves with the necessary equipment, as much as we need."
In Qin Tao’s impression, huge ground-effect aircraft all use turbofans or turbojet engines. I have never seen one that uses a turboprop. This thing will increase the windward area and reduce the speed. I wonder if the designer likes it?
"Of course. If four D-227 engines are used, the power will reach exactly 600 kilonewtons." Alexeyeva said: "Moreover, this engine is more fuel-efficient and has a longer range. We can even set Set the flight control program to turn on four engines when taking off and landing. When flying normally and the ground effect is high enough, only two engines can be turned on. In this way, our Peace Dove 2 should be able to reach 5,000 Kilometers and more of range!”
Alexeyeva is very satisfied with this engine. It drives the front coaxial counter-rotating propeller, which is equivalent to a turbofan engine with a huge bypass ratio. The fuel consumption will definitely be greatly reduced. If it is developed specifically for ground-effect aircraft, more With a suitable propeller, the thrust might be greater.
When a ground-effect aircraft takes off, it needs enough gas to be pushed by the nose engine. But after it takes off, the ground effect can reduce this need. Maybe two units are enough.
Qin Tao did not expect that the production of this kind of engine, which he had just discussed with Zamotaeva, would now be of such use. In the future, the production of this D-227 engine would be even greater!
In fact, it is also very common for ground-effect aircraft to use propellers. Lao Maozi's Orion-25 and the domestic CYG-11 light ground-effect wing craft all use propellers. However, Qin Tao was preconceived, and his mind was full of them. The flower-tailed pigeon I saw on the shore of the Caspian Sea felt that the eight engines on the nose were enough, and I never thought of other configurations.
Anyway, a ground-effect aircraft does not need supersonic speed, or even a particularly high speed. Although it is an aircraft, it is actually compared with a ship. It is enough to be more than ten times faster than a ship. There is no need to continue to pursue too high a speed. speed.
“But when will this engine be given to us?” Alexeyeva continued to ask.
“Okay, then give us the information about this engine in advance. We still need to make improvements based on this engine.”
In the past, the short wings were prepared for jet engines. Now that they want to use propeller engines, the shape of the short wings will definitely have to be changed. Maybe they will have to try it in a wind tunnel. Three months is just enough for them to modify it.
You really can’t be picky about which engine to use.
"Well, Alexeyeva, thank you for your hard work." Qin Tao wanted to say a few words of thanks before leaving. Unexpectedly, Alexeyeva interrupted his next encouragement, Continued to speak: "Mr. Qin, the engine problem has been solved, now comes the weapons. We plan to install six anti-ship missiles on the back. What missiles are installed on the back?"
Six Sunburn anti-ship missiles are installed on the Huawei Ge, which is majestic. Now what? They don't want to install a simple YJ-82, that kind of power is too weak!
Qin Tao just happened to meet her at the right time and deceived Alexeyeva. Now, everything is moving forward naturally. He really has not guessed what anti-ship missiles to use. Now that he has finally reached this point, he can no longer be vague. That's right.
“What about the YJ-8 series missiles?”
"No, the range is only forty kilometers. Even the improved version is only about a hundred kilometers, and it is still subsonic." Alexeyeva said: "The mission of our weapon is to attack the enemy's high-value water targets. , such as aircraft carriers, etc., we don’t want to do those ordinary jobs.”
Carrier?
Then there is only the YJ-12. This supersonic anti-ship missile is already mature. It is installed on the only 10,000-ton destroyer in China. It is arranged at an angle. Now it seems that it is not difficult to transplant it. As for the more advanced The YJ-18 combined with the Asian Super League is still under development and is not mature enough.
These anti-ship missiles fly long distances and require advanced detection methods. Therefore, it is enough to equip the Peace Dove 2 with an ordinary data link. It can receive intelligence from early warning aircraft, penetrate defenses at ultra-low altitude at sea, and hit and run. It can exert its power, but it's a pity that this kind of missile can only be used by oneself at present.
You should know that the Navy has not yet decided whether to install ground-effect aircraft. The Peace Dove 2 is put on the market and the YJ-12 cannot be exported. Even if it is matched now, it will be useless.
Wait a minute, why does it have to be limited by sea attacks? Is it possible to attack the ground? Is it better to replace anti-ship missiles with cruise missiles?
Thinking of this, Qin Tao's eyes brightened. These projects currently underway have objectively helped the development of ground-effect aircraft!
Peace Dove No. 2 is a weapon tailor-made for Lao Ba!
Lao Ba’s enemy is Asan. For a long time, Lao Ba has been suppressed and beaten, but with this ground-effect aircraft, Lao Ba can gain the initiative! Starting from their own port, they circled the southernmost tip of Asan's land and appeared on the east side of Asan!
Since losing Dongba, Asan no longer has the risk of fighting on two fronts. Now that Laoba has Peace Dove 2, he can go around to the east of Asan at high speed and launch cruise missiles, catching Asan off guard!
It is faster than speedboats and submarines, has a longer range than bombers, and has a large bomb load. This is a real killer! Qin Tao also lamented that he suddenly understood the real advantages of ground-effect aircraft. If a stealth version was developed in the future, would it be more domineering?
The cruise missile was jointly developed by everyone, and there are no problems with the weapon system.
Seeing the light shining in Qin Tao's eyes, Zhao Ling knew that Qin Tao had already figured out a solution. She was a powerful man and could find a solution no matter what problem she encountered.
“Alexeyeva, how about we deploy a more powerful killer weapon on top of this ground-effect aircraft?” Qin Tao said.
"A bigger weapon? What weapon?" Alexeyeva immediately became energetic.
“Tell me, what is the most advanced weapon in this world?”
“Stealth machine?”
“No, no, our ground-effect aircraft can carry weapons, missiles. It will be used in several recent local wars, and it will also become a star weapon and receive the attention of many military strategists.”
If it were not carried by ground-effect aircraft, Alexeyeva would probably talk about Scuds and Patriots. Now, she thought about it and then answered seriously: "Mr. Qin, do you mean the Tomahawk cruise missile? "
"Yes, it is a cruise missile." Qin Tao said: "Now, we have also decided to develop a specialized land attack cruise missile. This missile has a longer range, higher concealment, and greater power. With it, You can better attack the enemy, even thousands of kilometers away."
“Are we going to do research and development?”
"Yes, the specific parameters are to imitate the Tomahawk cruise missile. You can design our Peace Dove 2 based on this cruise missile, and you have to produce the drawings as soon as possible. It is very likely that there will be buyers for our project. If we have an order, our project can develop faster and better."
Alexeyeva opened her eyes wide: "Order?"
Having been in the East for many years, Alexeyeva certainly knows that only by selling a piece of weapons and equipment can a virtuous cycle be formed. If you make money after selling it, you can continue to invest in research and development to come up with better and more advanced ones. If there is no For buyers, the investment is huge and cannot be recovered, and the entire project is likely to be terminated.
However, she did not expect that Peace Dove No. 2 could be sold out so quickly. She nodded vigorously: "Okay, we will do it as soon as possible."
After receiving the task and getting the promise, Alexeyeva left. She needed to gather her men and immediately start improving the design.
Looking at her leaving figure, Zhao Ling said with emotion: "Brother Tao, this is a woman who devotes herself to her work."
Zhao Ling saw her own shadow in Alexeyeva. In the past, she worked hard in order to engage in research and development. Now, as Tao's secretary, she has experienced what life is.
"Well, I also feel that I am a bit of a black-hearted boss. Should we find a man for her?" After Qin Tao finished speaking, he looked around and saw Xu Zhengyang. Xu Zhengyang is not married yet, so they How about a couple?
Xu Zhengyang quickly shook his head: "Mr. Qin, please don't worry about my affairs. It's better to go in to visit and assign tasks."
When they come here, they have to arrange the affairs of the cruise missile research and development team. This research and development team also includes Laoba's technical staff, so confidentiality must be high, and it is best to have an independent compound.
Fortunately, this place is newly built and planning is easy. All projects were finalized before dark.
Lao Ba also acted very quickly. The next day, a C-130 transport plane landed on the runway of Shuangyang Factory, and the wreckage of the Tomahawk missile was delivered!
(End of this chapter)