Looking at the data report in front of him, and Chang Haonan, who seemed to be still calm and breezy next to him, Yan Zhongzhong subconsciously turned around and left the control room as if nothing happened.

He didn't want his tears to be seen by too many people.

Twelve years.

Kunlun engine was officially approved in 1984, and 12 years have passed since then.

For the Huaxia aviation industry, which has never successfully developed a type of aero engine from scratch before, there are too many things to learn and lessons to make up.

From the very beginning, the project was a fateful one.

Even Yan Zhongzhong himself couldn't remember how many problems he had faced in the past twelve years.

Initially, the 3-stage low-pressure compressor of the turbojet 13 engine and the first 7-stage high-pressure compressor of the downsized Spey engine were not compatible, and the engine went into a surge almost immediately after starting.

They had to redesign the fourth stage of the compressor to finally get the engine to work properly.

Later, because the pre-turbine temperature of the turbojet 14 was higher than that of the turbojet 13, which was far beyond the capacity of the turbine blades themselves, they had to use active air film cooling technology for the first time on the high-pressure turbine.

Due to the lack of engineering application experience, the 410 plant was unable to create qualified products with air film holes for several years, and the root fracture of the high-pressure turbine blades was almost the main content of Yan Zhongzhong's nightmare during that time.

This was followed by oil leakage in the pipeline, interruption of lubricating oil, and low success rate of afterburner ignition......

If the story of these twelve years were to be written as a book, the most appropriate title would be "Learning Engine Design and Manufacturing from Scratch".

It can be said that the entire development process of Turbojet 14 is a cycle from one setback to another.

At first, Yan Zhongzhong would be excited that he had led the team to overcome a technical problem.

But soon, he won't have similar emotions anymore.

Because the solution of one problem often means more problems.

It's like groping your way forward without moonlight and night, and you don't even know if you're on the right path.

Thinking of this, Yan Zhongzhong sighed, leaned against the wall in the corridor at the door, reached into the collar of his shirt with his right hand, and touched a scar on his left shoulder.

It was left over from a failed test run.

The fan blades that flew in the explosion almost cut off half of his left arm, so much so that to this day, his left hand cannot be lifted for a long time.

A lot of people left halfway through.

To be honest, Yan Zhongzhong understands.

What these people fear is not suffering or even bloodshed and sacrifice, but that they do not see hope and cannot find direction.

This is also why he must let Chang Haonan think clearly before deciding whether to join the power joint research team.

Because to plunge headlong into the dark night where you can't see your fingers, you must have extraordinary courage.

But it was clear that he had underestimated the young man after all.

The other party was not afraid of the long night, for he himself was the torch that lit the way.

Now, there is light.

The road, see clearly.

……

In the control room, Chang Haonan certainly knew why Yan Zhongzhong chose to leave alone when everyone was celebrating.

The latter's experience in the development of the Turbojet 14 was known to him as a reborn.

It took just over a month from the accident of the No. 01 prototype to the coming up with a new design with performance comparable to that of the F404 engine.

There is certainly systematic help in this, and the reason for being prophetic as a regenerate.

However, without Yan Zhongzhong's twelve years of perseverance, there would not have been Chang Haonan's miracle for a month.

Compared with the grateful Yan Zhongzhong and the calm Chang Haonan, the emotions of most people in the control room were much simpler.

Excitement, and fun.

There was jubilation.

For the vast majority of engineers at 606, this is even the first time in their careers that they have experienced a sense of success.

Prior to that, the best aero engine that Huaxia was able to produce was the turbojet 13.

The technical level is roughly the same as that of the J79 in the early 60s, and the overall performance is even weaker.

And the turbojet 14 in front of them has already thrown the J79 a few positions away.

It can even be compared to the F404 of the mid-80s to a certain extent.

Fifteen years in one leap!

Of course, this calculation method is certainly not accurate enough.

The F404 is nothing more than a less dazzling product of the overall development of the American aviation industry, far from the limit of that era.

The Turbojet 14 is the only seedling that grows in the still barren soil of the aviation industry in China.

If I have to say that the gap between China and the United States in the field of aviation power has been narrowed to less than ten years, I am afraid it is still a little too optimistic.

But, so what?

The huge breakthrough at the technical level is real.

For the first time, Huaxia has its own aviation power.

And you must know that a project like Kunlun engine does not represent just one model.

If all the test items can be successfully completed, it is possible to develop a series of new products based on the mature core machine of the Turbojet 14.

The development of the entire Huaxia aviation power industry will benefit from this.

Project R&D also pays attention to a positive feedback.

In the past few decades, the aviation model has been used as a supporting aircraft model, coupled with insufficient investment, so that the already weak foundation of the aviation power field is more and more difficult, many times even if you get a full set of technical information from the Soviet Union, the performance of the imitation of the finished product has a certain gap with the original.

On the other hand, in the field of aircraft industry, the first J-5 was assembled in 1956, and two years later, in 1958, the J-1, which was completely designed by itself, successfully made its first flight.

Although only 3 prototypes were built and mass production was not achieved, it was mainly due to changes in the flight training system, as well as ......

Plant 410 was unable to provide qualified Eruption 1A engines.

Although there are various objective factors in it, such a sharp comparison between the two makes it even more obvious that the aviation power department is a bit "not competitive enough".

In the almost 40 years that followed, the situation of such an engine "dragging its feet" almost always accompanied the development of the aviation industry in China.

So much so that the people who are engaged in aviation hair themselves feel a little unable to raise their heads.

But this time, it's a different story.

The original design of the 83 project is the level of a normal second-generation aircraft, even if it has been improved by Chang Haonan, it can be regarded as a "quasi-third-generation" at most.

The turbojet 14 provided by our aviation power department is also a "quasi-third-generation" engine with performance close to that of F404.

Not only did it not lag behind, but to some extent it was even ahead of the aircraft model.

Finally raised his eyebrows and breathed a sigh of relief!

But at this time, someone in the crowd who was celebrating with each other suddenly realized something.

"The person who presided over the revision of the compressor design this time is also called Chang Haonan, and the person who presided over the revision of the aircraft design before seems to be called Chang Haonan, how do you feel ......?"

The man scratched his head and looked at Chang Haonan, who was looking down at the test report outside the crowd.

As an ordinary engineer of the 606 Institute, of course, he has not participated in the wing design modification work of the 601 Institute, but he has only heard about it in the communication with his colleagues.

"Hiss......"

"This TM can't be the same person......"

(End of chapter)