Ye Zhou and Chen Hao stayed until after lunch before leaving the nursing home. Before bidding farewell to the old man, Ye Zhou held the pretended words in one hand and the old man's hand in the other, making an agreement with him.

We must continue to persist for 6 months, even if we are on ECMO, we still want to see the Qilian make its first flight.

But in fact, everyone knows that the possibility of this agreement being fulfilled is too small.

According to what Chen Hao explained to Ye Zhou after leaving, it was actually a miracle that the old man could survive for three days.

This is also the reason why Chen Hao called Ye Zhou over in a hurry at this time.

After returning to Liming Factory, Ye Zhou did not tell Chen Hao more, but directly held a meeting of the core decision-makers of the sedan project team. The meeting had only one topic, which was to carry out inspections on the Qilian engine based on the completion of the preparation work.

Pre-commissioning assessment.

After a professional evaluation by the test-run technical team, the final conclusion was that all preparations were in place and no redundant backup was needed. The engine test-run was advanced, and the first test-run was scheduled for 6 p.m. that day.

.......

Qilian engine, ground test countdown, 3 hours.

"Check the oil pump and pipelines one last time. If there are no problems, you can start the system to warm up."

Ye Zhou stared nervously at the engine on the test bench. Now all the preparations have been completed. As long as the final emergency response procedure inspection is completed, the test run can begin.

For 7 months, they worked day and night, and finally built the most complex product ever manufactured in the history of the Chinese aviation industry, which is about to face a big test.

While the engineers were doing final inspections, they were discussing in low voices the tests that were about to begin.

"Why do I feel so nervous, just like when I was about to take the college entrance examination... No, I am more nervous than the college entrance examination now. From noon to now, my heart rate has not dropped below 100. I feel like I am going to die soon.

.”

"Holy shit, are you serious? If your heart rate is always this high, go and rest! Will this really kill someone?"

"Stop talking nonsense. You want me to rest at this time? Why don't you just kill me? Stop talking. How is the temperature of the central fuel tank?"

"The temperature is stable and there is no problem. Check the connections of each pipeline and pull them out firmly. If there are any loose connections, quickly reconnect them."

"I've already unplugged it, and it's no problem. Is the electrical system circuit normal?"

"The circuit is normal, and Ye Gong can already see the data."

"Is the thrust detection system working properly?"

"No problem, it has been reset to zero. I just tested it, the slide rail works normally, and the accuracy error of the measured thrust is between 1% and 2%."

"This error... is still a bit big. What if it barely surpasses the ge-9x next door?"

"...Do you really think this is an exam? It doesn't matter. This is the first time we have made an engine with such a large thrust. Even if there is a slight difference, it is normal. Just be normal."

"That's what I say, but people always have expectations... How high do you think the thrust can be?"

"60 tons is definitely stable, but the question is, after 60 tons, how stable is the engine? If the surge is serious, then it will be meaningless even to 70 tons."

"There is also the corrosion and wear of various components. We can fly 120 tons at a time without any problem, but if the combustion chamber is burned out when the thrust reaches 120 tons, it is completely nonsense."

"So, in addition to thrust, we also have to look at stability."

"It should be no problem. Manufacturing and assembly are in strict accordance with the requirements..."

"Stop talking nonsense, add oil and power on! Check the status of the oil system and start lubricating various components."

"It's up. The oil supply pipeline has also been inspected. Now let's start inspecting the emergency fire protection system."

"The emergency firefighting system has been inspected. There is no problem. Lao Xu, are the fire trucks in place?"

"Well, it's parked at the door. I guess it won't be needed. Our test bed's fire protection is still very strong."

"Don't be afraid of 10,000, just be afraid of what happens...just turn on the power."

The switch is pushed up and all the power systems of the test bench are started.

Ye Zhou looked at the green indicator light that was gradually lighting up in front of him and took a deep breath.

Finally the moment has arrived.

This is the most important moment for an engine. It is also the first test that determines whether it can fly on an airplane and what kind of test it can pass. It is also the most important test.

As long as it can pass this test, it means that the initial goal of the sedan project has been basically achieved.

After that, the official computer use and official use are actually just some finishing work that takes time to polish.

It's like a sword. After the most critical sword strip is made, although a lot of time and energy will still be spent on the scabbard, hilt or other accessories, as long as the sword strip is born, the sword will be

It’s already done.

All the core members of the sedan project team have arrived at the test bench monitoring area, and their expressions are equally nervous.

After a 30-minute countdown, the final cleaning of the test bench was completed and the engineers began to evacuate.

"Ye Gong, do you want to say something?"

Someone in the crowd in the surveillance area suddenly asked.

Ye Zhou was stunned for a moment and did not answer immediately.

What should I talk about? According to the practice of such large-scale projects, before the final results are accepted, it is indeed necessary to talk about something. For example, comrades have worked hard during this period. We are very tired but we have also achieved outstanding achievements, such as

As long as this acceptance is successful, we will give everyone a big bonus. For example, if we make any breakthrough progress, everyone's name will remain in history in the future.

And so on.

But at this moment, Ye Zhou couldn't speak at all, and he didn't want to say these words.

This is something that everyone already knows. What’s the point of saying it again?

After a moment of silence, he spoke:

"This is the first major test for Qilian Engine, and it is also our first major test."

"Although we have made great efforts in the early stage, as long as it is an exam, there is a possibility of failure."

"If there is a problem in the next test run, I just want to say one thing to everyone: don't be disappointed and don't give up."

"We have done many things that our predecessors could not imagine. Even if we fail, it means that we have once again moved a huge boulder on the road to the sky."

"So, it's all worth it."

"But of course, I hope everything goes well."

After saying that, Ye Zhou turned to the engineer waiting for the operation and said:

"Let's go, start the engine!"

After the words fell, the engineer pressed the button and pushed the joystick, and a low wind noise sounded on the test bench below.

The engine started smoothly, and the turbofan began to rotate at a speed of thousands of revolutions per second. It sprayed hot air from behind, and the air in the factory was instantly distorted.

After ten minutes of stabilizing the idling state, Ye Zhou issued an order to increase the power.
Chapter completed!