Now, although Yunshi's research is still in full swing, after all, the future of this aircraft has begun to be overshadowed for some reasons. Now president Qin said that it can be promoted to the international market and sold. Of course, it's better.

"Mr. Qin, thank you very much," said Mr. Ma.

Qin Guan thought for a moment and continued: "at the same time, we can also use it to improve the early warning aircraft. We can combine 114 institutes and use our current developed electronic technology to create an air early warning aircraft. If the domestic air force is not equipped, it can also be introduced to the international market."

The air early warning aircraft is a multiplier of air combat power. The current air force will soon have advanced fighters, but there is no reliable air early warning aircraft.

Therefore, Qin Guan is confident to equip the air force, but this project was put forward by himself. Even if it is an export project, the domestic air force is not equipped, and he has the ability to push it to the international market.

The air early warning aircraft is very difficult. In the past, China itself developed air police No. 1. Unfortunately, because the domestic technical level is too poor, it finally stopped.

But now it's different.

At present, eagle's E-3 early warning aircraft is also a flat slot radar antenna on the top of the big plate, and our side has overcome the difficulties in the development of this radar antenna and developed pulse Doppler radar. In other words, all technologies have been overcome, leaving only production.

As long as you transplant these technologies, at the same time, due to your breakthrough in the field of electronic computers, there will be no problem with later data processing.

At the same time, David and I have also begun negotiations on the technology of Solid-state Radar, which is actually the technology of phased array radar. When these technologies are available, our side may be able to get the airborne phased array radar in advance and obtain the technology from the weapons cemetery. It can be said that the future air police 2000 can also be available in advance.

What is lacking now is a suitable platform. Because of the lack of platform, later Han finally adopted bear's Il-76 transport aircraft.

This kind of transport aircraft, with high noise and poor comfort, is definitely not a suitable carrier for early warning aircraft. Look at later generations, eagle's early warning aircraft uses the body of an airliner, which is comfortable enough.

In fact, in history, there has been an idea of using Yunshi airframe to improve early warning aircraft. Unfortunately, it is only a model in the end. This model makes people sigh.

Now, since Qin Guan has come here, he will never let these regrets appear again. It must become a reality.

"Mr. Qin, thank you for your support for our project." hearing this, Mr. Ma was quite moved: "our aircraft has first-hand data on its aerodynamic shape. With a big plate on it, we can also ensure flight safety."

"Are there any shortcomings in our plane?" Qin Guan continued: "if you have any technical problems, you can tell me and I can help find a way."

Hearing Qin Guan's words, old Ma said, "President Qin, if there is a problem, it is still our engine."

In the development of any aircraft, the engine is a big problem, and now Yunshi is no exception.

"At the beginning, the supporting turbofan 8 was developed simultaneously for our Yunshi project, but now, the development of this engine has always been difficult. Therefore, the jt3d engine is still used in our final assembly."

Old Ma said, "the engine project has been holding us back!"

The aviation industry of the Han Dynasty has always been rash, thinking everything too simple. The turbofan 6 on the platform has been having problems all the time, and finally it can only be the end of getting off the horse.

The same is true for the turbofan 8 supporting yun10.

After receiving the task of Yunshi, Huating City, after careful research, decided to hand over the arduous task of developing high thrust turbine engine to Huating Changzheng machinery factory, which is the predecessor of Han guohuating aeroengine Manufacturing Co., Ltd. as a key supporting project of large passenger plane project.

A large number of factories have been mobilized throughout the project, with more than 50 participating units in Huating City alone. For example, 9 units such as Huating electrical machinery factory, Huating automobile gear machine factory and Huating nozzle oil pump factory are involved in the production of parts; Blade production has 8 enterprises, including 3035 factory, Huating steam turbine factory, Wuyi motor factory and Renmin motor factory; There are 16 forging and casting units, including Huating heavy machinery factory and Huating motor forging factory.

They fully embody the spirit of "great unity and cooperation" and "obeying the overall situation and being willing to play a supporting role". In the engine development, 12 new materials have been developed and dozens of new processes such as titanium alloy welding, plasma spraying and vacuum brazing have been overcome. The final assembly of the first engine was completed at the end of 1974.

On July 1, 1975, the first engine was successfully tested on the stage. After that, four engines were developed and produced in the second round, of which the third was used for hoisting on the "Yun 10" aircraft for flight test, and the other three were used for phased exploratory long-term test, whole process long-term test and bench long-term life test.

However, in order to ensure the smooth first flight of Yunshi, they did not dare to install the turbofan 8, but used the spare parts of civil aviation. After all, the turbofan 8 actually came from reverse jt3d, and they decided to fly with the machine in the civil aviation warehouse.

Qin Guan didn't want to delve into whether there was a great leap forward or not. In short, now Ma always puts forward this problem, and the engine is a drag.

Continue to support the turbofan 8 project?

Of course not. Qin Guan has no such confidence.

"The engine is really a short board," Qin Guan said "We have a lot of ways to go in the development of engines. Now, our air force plans to carry out the pre research of the third generation engines. In this project, my suggestion is to develop the core aircraft first. After the successful development of the air force's core aircraft, we can make various improvements, such as changing to an airliner engine with large bypass ratio."

The engine development in Han country is different from that in foreign countries. Foreign countries first develop the core engine. After the core engine comes out, it carries out different supporting and obtains different power systems.

There is no intersection between engine development and aircraft development. It is a completely different project.

But what about the Han country? First set up the aircraft, decided to build the aircraft, and then look for the engine. This is completely putting the cart before the horse, because the development cycle of the engine must be longer than that of the aircraft.

"Maybe this process will take a long time. During this period, if turbofan 8 is mature, go to turbofan 8. If turbofan 8 is not mature, replace it with civil aviation spare parts." Qin Guan continued.

Anyway, if civil aviation buys Boeing 707, it must have corresponding engine spare parts.

Boeing can't fly with these backup engines for the time being.

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