Oscar was full of gratitude to Qin Tao. It was Qin Tao who pulled him out of hell, gave him light, and gave him a new life. Here, he lived very happily.

"Oscar, how do you feel about being here?" Qin Tao said: "In the past few years, I have always wanted to come see you, but I am too busy with work and have never been able to take care of it. However, I often hear them talk about it.

Regarding your affairs, you, Miguel, Sangare, Helen and others, I heard that you are working very hard, I would like to thank you on behalf of the East."

"We are very happy in the East." Oscar said: "Mr. Qin, thank you for always taking care of us."

Qin Tao had long forgotten what kind of care he had for them. But now, when he said it sincerely, Oscar was very moved.

At this time, after hearing Oscar's words, Qin Tao nodded: "It's all as it should be. By the way, I heard that you are taking the lead here and greatly speeding up our research and development of Zhi-Twenty?"

"No, I just did what I should do. The designers here are very capable and strive for excellence in their work. I am very satisfied with them and our cooperation is very pleasant."

Others were a little surprised. They really didn't expect Oscar, who always had a straight face and criticized this and that, to be able to say such things. It was because the sun was shining in the west today, or Mr. Qin was too charming.

?

"Now, tell me about your progress."

Deng Hui acted as a foil. When it comes to technology, Oscar is really good, so he directly asked Oscar to introduce it to Qin Tao here.

"Mr. Qin, what we are currently developing is a ten-ton general-purpose helicopter. This kind of helicopter has a wide range of uses and is very useful. Therefore, we also pay special attention to general-purpose helicopters during research and development. Of course, during the entire development process,

The most difficult thing is the power system..."

Oscar's introduction was eloquent, and Qin Tao also listened attentively. While listening, he and Oscar looked at the various parts on the plane.

"The main reducer is produced by Mingzhou Group. We have tested it and proved that this main reducer is very good and fully meets our needs." Oscar said, pointing to an object above his head.

Helicopters use turboshaft engines, which are improved from jets. One of its characteristics is that the speed is very high. The speed of the helicopter's rotor cannot be too high, otherwise the outside of the propeller will reach supersonic speed. In this way, the middle

A reducer is needed.

This reducer sounds simple, but it is quite difficult to manufacture. They found several supporting manufacturers, but they were unable to produce qualified products. Then they found Mingzhou Group, the former water pump factory, which has now become an advanced

Our mechanical processing factory can process whatever you need, whether it is pump propellers, propellers, lift engines, or reducers, and the processed products can fully meet the requirements.

"After hundreds of hours of operation, after we dismantled it, there wasn't even a metal scrap inside. It's really amazing." Oscar said: "We are so impressed by Dongfang's technology. Mingzhou Group is awesome."

When he said this, Oscar gave a thumbs up. Qin Tao had a smile on his face and followed the Romans. Now Oscar has become an out-and-out oriental.

"At present, we are mainly waiting for the turboshaft ten. After this engine is finalized, we can officially start test flight work." Oscar said: "With Ermao's technology in it, we feel that this engine will not be too popular."

It’s a big problem. Zhi Twenty should be able to complete the research and development soon.”

"If you are in a hurry, you can also directly install the engine on Ermao's side first." Qin Tao said: "You can test it first, and when the test is almost complete and the engine is built, it will not be too late to replace the engine.

"

In the East, this kind of operation should be very common. When the J-20 is test-flying, it must first use the turbofan 10, and then change it after the turbofan 15 is mature.

The helicopter engine developed by ourselves may take a long time to undergo various tests, so under the current situation, it is common to install the mature engine first, and then replace it with a new one later.

Motor Sich Company has been producing TV3-117VM turboshaft engines, which are used in many old Maozi ten-ton helicopters. The power output is absolutely no problem, but the weight, fuel consumption, and control system are deficient.

He felt that he had made a very wise decision that could solve the urgent needs here, but to his surprise, Oscar actually shook his head.

"Sorry, Mr. Qin, we don't think this is a good idea."

"Why?"

"Because this may delay even more time." Oscar said: "Our aircraft has used all redundant digital control systems, including the throttle lever. If the TV3-117VM turboshaft engine is used, then our digital flight

The control cannot be used for normal test flight and has to be modified. After the modification is completed and the test flight is completed, it has to be replaced again, which is too troublesome."

The current throttle lever is already electronically controlled, and the output below is an electrical signal. If it is to be changed to an ordinary Lao Maozi engine, which still uses a wire cable, then it will have to be greatly modified. They don't want to change it.

, it is better to do it in one step.

"Digital fly-by-wire flight control?"

"That's right, this set of flight control hardware is already complete at your place. We can purchase it directly and then write the program. You should know that for helicopters, this kind of flight control is more useful, and it must be

It needs to be connected to the engine."

Don’t worry too much about the rest. After all, other aircraft don’t need to fly at ultra-low altitude for a long time. What about helicopters? On the battlefield, they almost always fly at the height of a tree. In the past, it all depended on the pilot’s boldness and carefulness.

But with the continuous application of high technology, the operation of helicopters will become easier and easier.

The radar in front of the nose can use terrain mapping to scan all landforms ahead. If it encounters hills, tall trees or even telephone poles, it can be pulled up immediately. At this time, just controlling the operating lever is not enough.

You need to be able to control the engine. If you suddenly pull it up, you need to fully open the accelerator.

It can also be used on fighter jets. This is called flying fire push cross-linking, but it is usually only used in fourth-generation aircraft. Third-generation aircraft are not so powerful yet, and they just control various rudder surfaces.

After hearing Oscar's words, Qin Tao nodded: "I don't know much about technical matters, but I believe that everyone's current choice is correct, and I support you."

"Mr. Qin, why don't you understand technology? It was you who proposed the electronic control modification of the engine." Oscar, this guy, still hasn't learned the essence of the East. He doesn't know how to flatter others, but only exposes his shortcomings.

When Qin Tao was discussing the research and development of helicopter engines with Lao Maozi, he proposed an update plan for the engine control system, requiring the use of a dual-redundant full-authority digital control system, also known as FADEC, which can measure fuel through various sensors.

Components such as components and compressor control components fine-tune a series of parameters such as the engine's throttle, speed, stator blade inclination angle, etc. to achieve complete digital control.

However, Qin Tao mentioned that at the beginning just to catch up with the world's trend, because he knew what the prospects of this technology were. However, Qin Tao could not apply it flexibly, let alone what kind of helicopter would be designed according to this engine.

There is no way to replace an ordinary engine.

"Humility, humility makes people progress." Qin Tao said with a smile.

Everything is ready except for the engine. Now everyone is assembling the aircraft and working very hard. Before they know it, it is noon.

"President Qin, Leader Wu, you all came unexpectedly, and we didn't prepare a luncheon." Deng Hui was a little embarrassed.

"Just go to the cafeteria to eat. Lao Deng, you will know if you ask around. We like to eat in the cafeteria."

"Oscar, come together, let's have a chat while eating."

Originally, Oscar, a workaholic, would not eat the food in the canteen without waiting for it to be heated two or three times. But since Qin Tao came today and invited him to have dinner with him, of course he had to accept it.

A group of people came to the canteen.

The food here is not particularly good, but the four dishes and one soup are considered normal. Qin Tao didn't dislike it, so he ordered a few dishes and sat down with everyone.

This is not Wu Shengli's first time here, he has long been used to it, and now he is happy to let Qin Tao play the leading role.

"When the engine is in place and tested intensively, it should take about one or two years, right?" Qin Tao asked.

"Well, we are confident."

"This is good. It seems that it can catch up with our 002 aircraft carrier. In the future, the design of the helicopter hangar of our navy's surface ships will also be mainly Z-20."

"If you want to convert it into a ship-based helicopter for the navy, you still need to make some changes. However, since the navy needs it, we will do our best to ensure that the navy's use is not delayed." Deng Hui said.

These 20 R&D funds are mainly from the Army, so they are first designed according to the land-based helicopter. From land-based to ship-based, some improvements are needed. The salt and humidity at sea are very high. If they do not improve, they will definitely

Will reduce lifespan.

"Our navy also paid for it, you can't just think about using it for the army." Wu Shengli said.

Deng Hui nodded awkwardly.

"When the basic model is completed, will you start improving it?" Qin Tao asked.

"Yes, we will first ensure the use of the navy. Secondly, we also need to ensure the plateau needs of this helicopter. Then, we will also carry out armed improvements."

The purchase of the Black Hawk back then made this helicopter the most suitable helicopter for the plateau. Over a long period of time, this helicopter has proven its reliability. Now, the domestically produced Z-20 not only looks like the Black Hawk, but also has better performance.

To achieve the same or even improved performance, you must be able to reach plateaus, which is also a performance that is urgently needed in the country.

Of course, Black Hawk is not the only one who goes to the plateau. After purchasing a large number of Mi-171 helicopters from Lao Maozi, some of them had increased engine power and also had the ability to go to the plateau.

Everyone knows this, but what about the armed variant?

"Aren't we going to develop a professional armed helicopter? Do we still need to add short-wing pylons directly to the Z-20 like the Z-9?"

At present, the main armed helicopters used by the Army are the WZ-9, which adds short-wing pylons on both sides of the Z-9 and mounts four anti-tank missiles. It does not look domineering at all and is incomparable with mainstream armed helicopters.

Transport helicopters can be modified to be armed. Even if it is a Mi-171, short-wing pylons can be added to mount more weapons. However, this is only temporary after all.

The transport helicopter has a wide body and a large bomb-receiving area. It is easy to be attacked by weapons such as RPG. The pilot is arranged left and right, so the field of vision is not good. A professional armed helicopter has two seats in tandem, with the front low and the rear high.

The front projection area is also very small.

"The research and development of professional armed helicopters takes a long time, and the Army cannot wait that long. Now that we have a mature transport helicopter, of course we have to transform it on the basis of this helicopter, and directly replace the Wuzhijiu one.

Just transplant it and it will soon transform into an armed helicopter. Moreover, the Americans have done this as well."

Speaking of American armed helicopters, many people will blurt out: Apache. In fact, Americans also have armed helicopters transformed from transport aircraft. Pylons have been added to both sides of the Black Hawk to become an armed Black Hawk. Moreover,

In the hands of many troops, it has also played a good role. For example, those special forces take helicopters deep behind enemy lines. After landing, if the transport helicopter is armed, it can directly provide fire support, eliminating the need for specialized Apaches.

Another trip, one helicopter is always easier to hide than two helicopters.

This chapter is not over yet, please click on the next page to continue reading! At this time, after hearing this introduction, Wu Shengli became interested: "In other words, our navy's helicopters can also be modified in this way?"

Navy helicopters are mainly used for anti-submarine warfare. In the era of Z-9, two were needed, one to drop sonar buoys and one to drop anti-submarine torpedoes. When it comes to Z-20, one is enough. This is the four-ton helicopter.

A ten-ton difference.

However, for the Eastern Navy, there is not only the need for anti-submarine warfare, but also a more important task: cross-sea landing.

In this case, the navy's helicopters need to have ground attack capabilities. If such a battle is really carried out, they will definitely get support from the air force. After all, the strait across is only one or two hundred kilometers wide, and even the top five can fly across it.

, however, rather than calling for support, it is more appropriate to do it yourself.
To be continued...