In fact, it is very risky to support Zhao Yanyan in re-opening a turboshaft engine.

Not to mention the investment required in the design team, and to determine the choice of various wind tunnel optimization solutions during the design process, this requires a huge cost. Not to mention the design itself, the cost of using the materials alone is jaw-dropping.

You should know that the process flow of Zhengyifang Technology, a rhenium-containing high-temperature alloy has not been determined yet, so it can only be prepared in laboratory. The previous R&D and test costs are directly one billion. In case of preparation alone, the material cost per ton may exceed tens of millions of US dollars. The material cost alone may exceed 20 million US dollars, which is ten times higher than the Black Hawk helicopter engine of 2 million US dollars per Black Hawk helicopter engine.

This is just the material cost. Fatty didn't even mention the processing cost. You should know that most of the impellers of this turboshaft engine are integrated processing. Before the supporting 3D printing technology was developed, only Fatty could process this accuracy.

Perhaps the cost will only drop significantly after the material production process and 3D printing technology are completed. However, the current investment in the two test prototype samples exceeds 1.5 billion yuan in R&D costs. Even if the largest material cost is currently paid by Zhengyifang Technology, the country cannot take advantage of the company so much. In short, it still has to pay, at most it can be paid for a period of time.

This is not counting. There is already another project of the same type of Turbine Shaft 9 in China. Repeated launches are a taboo in R&D.

In this situation, General Chu and the leaders of the assembly also bear huge pressure to overcome the opposition and spend huge amounts of money to decisively establish this turboshaft engine. On the one hand, they have confidence in Zhao Yanyan and her team, and on the other hand, it is because of Guo Tailai.

A marine turbine engine already has mature products, and after discussion on the optimization principles of Black Hawk engines, it has great executability. In addition, the processing technology that even the most powerful CNC machining center in China is not as good as the processing technology, has given General Chu and the assembly leader a strong reassurance. Since this is possible, why not try it?

Finally, under the pressure and questioning of all parties, the project has been persisting for more than a year and received this huge good news before the end of this year.

Although off-site test runs have not been done yet and the operating life has not been calibrated, according to the current test situation and Zhao Yanyan's estimates, it is not a problem to reach thousands of hours in the early stage. However, I dare not say this to the public. I can only rely on the test drive for a long-term test run to give actual support. Zhao Yanyan has attached a subsequent test plan after the test report, and will conduct 50-hour continuous long-term test runs starting next week.

While taking a reassurance, General Chu couldn't help but be amazed. This is not the first time that China produces an aircraft engine independently? Every time, whether it is introduced or designed by itself, there will always be problems during the first test run, and there has never been a success. Zhao Yanyan's design team obviously set a record.

General Chu rushed to the leader's office with the test report as soon as possible. Looking at the test report, the leader looked at it for more than ten minutes. The first sentence he raised his head was to suppress the surprise and asked General Chu: "Is there any problem with this test report?"

"Although the design team also participated in the test process, the test team belongs to another unit and the maintenance team is the third unit." General Chu gave the perfect answer in just one sentence.

It is not a test team of one unit, so there is no need to work with the design team to commit fraud together, right? Besides, there are maintenance teams from different units. How likely is the three units to commit fraud collectively? This is a military project, who dares?

The leader stood up with an excited smile on his face, and walked back and forth in the office with his hands behind his back. General Chu could hear the deep breathing sounds of his leader walking around while he was sitting on the sofa.

"I think who can still question it now?" The leader's voice was filled with relief and the pride that persisted to the end: "Who else?"

General Chu fully understood the leader's mood at this moment. The total military expenditure in the country this year has not exceeded 200 billion yuan, and he threw more than one billion yuan into a project. Faced with many doubts, the pressure is extremely high. Now, I can finally breathe a sigh of relief with pride.

"Organize a meeting now!" The leader thought about it and finally stopped and instructed: "The chief commander and unit leaders of the 10th Martial Arts must participate, as well as experts from the Army Aviation and Air Force, come to the assembly place, no! Go to the test site for a meeting. We encourage our heroes on the spot, and we will work with the engine design team to study the engine installation test plan."

At this time, no one knew that such a thing would happen. When a group of senior leaders with the rank of general and several non-military personnel appeared at the test site, Zhao Yanyan and others were conducting a 50-hour continuous and long-term test run with the test team. It had reached the final stage, and the first time was completed in another four or five hours.

All the experts who felt completely unbelievable when they saw the test report were incredible. At this moment, they saw the two real engines under test at the actual test site. Looking at the series of data curves on the test equipment, and watching the data measured at the scene that was adjusted according to their requirements at any time, they were all stunned.

Listening to the ears is false, and seeing to the eyes is true. Now no one thinks it is exaggeration, no one thinks it is sensational, only the incredible face and the ecstasy heart are left.

Every expert qualified to stand here is a staunch patriot. Who doesn’t want to see the country independently develop and produce aircraft engines? The two engines in front of us are probably not just as simple as independent research and development and production. The key performance parameters beat the same type and level engines. In the future, our helicopters will no longer have to worry about being choked by others.

The current Wuzhi Ten prototype uses the PT6C series turboshaft engine from Pratt & Whitney in Canada. Americans have reset the card and it is definitely impossible to use it directly in the future. If the domestically produced engine turboshaft 9 is used, the power will be reduced by about 20%, which is a shortcoming. But now, looking at this engine with higher power, lower fuel consumption, lower weight, what else can I say? Change it!
Chapter completed!