Coming out of the conference room, Qin Feng let out a long breath, and when he put forward his opinions today, even the leaders of the test flight institute were scolding themselves.

Qin Feng knew that this kind of reprimand was actually a kind of protection, if they didn't scold them on the spot, but reported behind their backs, they would really harm themselves.

The more the leader scolds, the more he regards it as his own person, and Qin Feng still understands this truth.

Can't help but feel the things in his pocket again, first-class merit, he has already obtained first-class merit!

He couldn't help but pull out the certificate again, and as soon as he opened it, he saw a piece of paper sandwiched inside.

It was actually a passbook, a passbook of 5,000 yuan!

Merit is a kind of honor, and while it comes with honor, it is of course followed by rewards, which is a material reward for meritorious personnel.

Five thousand dollars! In this day and age, the money is definitely sky-high.

An ordinary worker is only a few dozen yuan a month, but a few hundred yuan a year, and the reward of 5,000 yuan is equivalent to ten years' wages.

After Qin Feng saw it, he was surprised in his heart, so much?

The country really doesn't treat itself by saying that he has to contribute everything to the country!

"Qin Feng, how are you going to spend this money?" At this moment, a voice came from behind him, it was Wang Yang, who had already returned from the test flight, he looked at the passbook in Qin Feng's hand, and he was also full of envy.

If it is a later life, then the friend asks this, nine times out of ten, he is going to have a dinner, but this era is not prosperous, after all, this money is a reward that Qin Feng got by risking his life.

"Keep it and marry your daughter-in-law, by the way, Qin Feng, you don't have a partner yet, right? But you have to hurry. Another voice came from behind him, this time it was Mr. Gu.

"Our test pilots, we have been busy with work, it is easy to delay the major events of our life, our base is assigned female college students every year, but you have to hurry, or someone else will grab it, and there is a military hospital next to us, which is full of girls." Wang Yang was also on the side.

Qin Feng shook his head: "I want to donate this money." ”

At this time, the 611 Institute appeared in front of Qin Feng's eyes, Ma Haitao, Zhang Lijun and others appeared, they were draftsmen, and they were sitting in the office, but they picked up a hoe, opened up a vegetable field, and sold the vegetables that could not be eaten, in order to raise funds for the 611 Institute.

The country is still relatively poor, limited funds, all invested in the J-8 project, the daily test flight is burning money, the J-9 fighter, which is much more advanced than the J-8, but because there is no funding and slow progress.

All of my 5,000 yuan was donated to 611 institutes to support their scientific research!

Besides, I am also a participant in the J-9 project.

Qin Feng had already made up his mind.

Mr. Gu nodded with satisfaction on the side, of course Mr. Gu knew that Qin Feng's family was not rich, and when he got the money, the first thing he thought of was not himself, it was too rare.

"Who are you going to donate to?"

"611 institutes, donated to their new annihilation project."

Hearing Qin Feng say this, Mr. Gu couldn't help but pause, and then a sigh came.

Qin Feng was very strange, could it be that Gu always blamed himself? Should the money be donated to the 601 Institute? Forget it, the J-13, the idea is not right, I still don't mix, after the test flight of the J-8, I should go back to Chengdu.

In front of Qin Feng's eyes, the fighter with the duck layout appeared again.

The next day, the sky was clear, Qin Feng rested, full of energy, and stepped into the cockpit.

"006 requests to take off, all kinds of data are normal." Qin Feng skillfully reported to the tower, and then piloted the fighter plane and rushed into the blue sky.

The sky is blue, and there are white clouds floating here, and the reason why the test flight yard is built here is because the visibility here is always so good.

Qin Feng skillfully piloted the fighter plane and climbed to an altitude of 10,000 meters.

"Note that the altitude is 12,000, the speed is Mach 1.6, and the envelope flight with a large angle climb and side turn is carried out." The voice of the commander on the ground came from inside the headset.

With the solution of the flutter problem, the speed of the J-8 is increasing little by little, and at the same time, under the speed that has been explored, other flight envelopes of the J-8 have also begun to be tested intensively.

"006 Roger." Qin Feng shouted, he buckled the mask of the helmet, at this time, although the cockpit is pressurized, but God knows when it will suddenly lose pressure, the air at an altitude of 10,000 meters is thin, once the cockpit loses pressure, he will immediately faint due to lack of oxygen.

The oxygen in this oxygen cylinder had a sour taste, and Qin Feng was breathing while piloting the fighter plane, and it flew smoothly to an altitude of 12,000 meters, leveling the plane.

All kinds of data are normal, the test begins!

Qin Feng turned on the afterburner, and the two turbojet-7 engines in the tail burst into blazing flames, and then, Qin Feng pulled the operating lever, and the nose of the J-8 was raised and began to climb upward.

When the nose of the aircraft was skillfully pulled up, Qin Feng pedaled the rudder and pushed the operating stick to the side at the same time, so the J-8 fighter began to turn to the right side while climbing upward, which is one of the most common actions in fighter combat.

At the beginning, Qin Feng had flown many times on the J-7 plane, and now he was even more familiar with the road, his fighter had just turned right, and at this moment, he felt that something was wrong with the plane.

There was a violent shaking from the tail, the frequency of this shaking was very high, and almost in an instant, Qin Feng immediately identified the reason, the compressor stalled!

The jet engine of the fighter jet, the principle is not difficult, the front is several stages of compressor, equivalent to an air compressor, the air is blown in, there is a combustion chamber in the middle, fuel injection combustion, and the back is the turbine blades, these high-temperature and high-pressure gas push the turbine blades to rotate, the shaft of the turbine blades and the shaft of the front compressor are connected, you can drive the compressor to continue to rotate, to complete the overall cycle.

They have to be matched, and if the intake air flow is not suitable, the compressor will not be able to pump in enough air, the combustion will not be complete, the turbine speed will be slowed down, and the compressor in front will be further deteriorated.

From the outside, the engine looks like a person suffering from a respiratory illness, coughing violently.

In technical terms, this is called surge.

Compressor stall surge!

Qin Feng looked at the dashboard in front of him, the engine's tachometer was falling rapidly in the back and forth shaking, and moreover, both engines were losing speed!

"006 report, 006 report, engine stall surge, engine stall surge." Qin Feng pushed the operating lever hard, wanting to restore the plane to level flight and let the engine breathe.

It's a pity that the engine didn't catch this cough, and it went straight to the back and turned off!

Both engines have their tachometers at zero and a flashing red light on the dashboard.