At present, although the research of Yunshi is still in progress, after all, for some reasons, the future of this aircraft has begun to be overshadowed. Now President Qin says it can be promoted to the international market and can be sold. Of course it couldn't be better.

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

Qin Guan thought for a while and continued: "At the same time, we can also use it to improve early warning aircraft. Joint 114 institutes and use our current advanced electronic technology to create an early warning aircraft. If the domestic air force is not equipped, , Can also be promoted to the international market."

Airborne early warning aircraft is a multiplier of air combat power. The current air force will soon have advanced fighter jets. However, there is no reliable airborne early warning aircraft.

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

Airborne early warning aircraft is very difficult. Han has developed the Airborne Alarm-1 before, but unfortunately because of the poor domestic technical level, it finally ended.

But now it's different.

Now Eagle Country’s E-3 early warning aircraft, in the large plate on the top, is also a flat-slot radar antenna, and it has overcome the difficulties in the development of this radar antenna, and has also developed a pulse Doppler radar, that is to say, all The technology has been overcome, and only production is left.

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 problems with the later data processing.

At the same time, he and the Kingdom of David also began to negotiate solid-state radar technology, which is actually phased-array radar technology. When these technologies are available, they may be able to come up with airborne phased-array radar in advance, and then start from the weapons cemetery. With the acquisition of technology, it can be said that the next generation of Air Police 2000 can also be released in advance.

What is lacking now is just a suitable platform. Later Han Guo also lacked a platform and finally adopted Xiong's Il-76 transport aircraft.

This kind of transport aircraft is noisy and poor in comfort. It is definitely not a suitable carrier for an early warning aircraft. Looking at later generations, the early warning aircraft of the Eagle Country uses the body of a passenger aircraft. The passenger aircraft is comfortable enough.

In fact, there has been an idea of ​​using the Yun-10 body to improve the early warning aircraft in history. Unfortunately, it was only a model in the end. This model is embarrassing.

Now, since Qin Guan is here, he will never let these sighs appear again, and must become reality.

"Mr. Qin, thank you for your support to our project." Hearing this, Mr. Ma was very moved: "Our aircraft has complete aerodynamic shape with first-hand data. With a large plate on it, we can also guarantee flight safety."

"Are there any shortcomings in our aircraft?" Qin Guan continued to ask: "If you have any technical problems, you can tell me, and I can help figure out a solution."

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

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

"At the beginning, for our transportation project, we carried out the development of the supporting turbofan eight. But now, the development of this engine has always been difficult. Therefore, the aircraft we are now assembled is still using JT3D. engine."

Mr. Ma said: "The engine project has been holding us back!"

Han Guo’s aviation industry has always been adventurous, thinking about everything too simple, the turbofan 6 on the bench has been problematic, and it can only be the end of dismounting.

The same is true for the turbofan eight that is used to transport the ten.

After receiving the task of Yunshi, Huating City, after careful study and decision, handed over the arduous task of developing high-thrust turbine engines to Huating Changzheng Machinery Factory, which was the predecessor of the later Han Guo Huating Aero Engine Manufacturing Co., Ltd., as a large Key supporting projects for passenger aircraft projects.

The entire project has mobilized a large number of factories, and there are more than 50 participating units in Huating City alone. For example, there are 9 units producing parts such as Huating Electric Machinery Factory, Huating Automobile Gear Machine Factory, Huating Nozzle Oil Pump Factory; blade production has 3035 factories , Huating Steam Turbine Factory, Wuyi Motor Factory, People's Motor Factory and other 8 enterprises; Forging and casting production has 16 units including Huating Heavy Machinery Factory and Huating Motor Forging Factory.

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

On July 1, 1975, the first engine was successfully put on the stage for a test run. After that, 4 engines were developed and produced in the second round. Among them, the third engine was used for hoisting on the "Yunshi" aircraft for test flight, and the remaining 3 engines were used for phased exploration. Long-term testing, full-term long-term testing and long-term bench life testing, etc.

However, in order to ensure the smooth first flight of Yunshi, they did not dare to install the turbofan eight and used spare parts for civil aviation. After all, the turbofan eight was actually a reverse JT3D, and they decided to use this machine in the civil aviation warehouse. Come fly.

Qin Guan is reluctant to go into it as to whether there is a Great Leap Forward. In short, Ma always raises this problem now, and the engine is slowing down.

Continue to support the turbofan eight project?

Of course not, Qin Guan did not have this confidence.

"The engine is indeed a shortcoming." Qin Guan said: "We have a lot of ways to go in the development of the engine. Now, our Air Force plans to start the pre-research of the third-generation engine. In this project, I The proposal put forward is to develop the core aircraft first, and after the Air Force’s core aircraft is successfully developed, various improvements can be made, such as changing to a passenger aircraft engine with a large bypass ratio."

The development of engines in Han is different from abroad. Foreign countries first develop core engines. After the core engines are released, they will carry out different matching and obtain different power systems.

The development of engines does not overlap with the development of aircraft. It's a completely different project.

But what about Han? First, the aircraft project was established, the aircraft decided to build, and then the engine was searched. This is completely turning the cart before the horse, because the engine development cycle is definitely longer than that of the aircraft.

"Maybe this process will be longer. During this period of time, if the turbofan eight is mature, the turbofan eight will be installed. If the turbofan eight is immature, civil aviation spare parts will be used instead." Qin Guan continued.

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

For the time being, Boeing can use these backup engines to fly.