"That's natural. Whether it is our country or not, we must support it when it can be used. " For Yun Fei's words, Ma Fengshan deeply thought so.

Yunshi's sacking made him pay special attention to research funds, and everything he could do would be saved. He doesn't want to see his big plane project end again because of financial problems. In particular, Yun Fei is a private boss who can take out a huge amount of money that even the state is unwilling to lose to build a plane project with little profit.

This is valuable. God knows if he started this project on impulse.

If you see that this research project is like a bottomless pit, you will definitely give up continuing investment because some places spend too much money in the end.

"Yes, even if we support domestic products, we have to meet our use requirements. Otherwise, in the end, we will not be able to operate ourselves, and there will be no funds to provide them. Since the old man made us the first to eat crabs this time, it is likely that those military aircraft manufacturers are unwilling to use them or the state is unwilling to invest money. " Cheng knows this industry very thoroughly from time to time.

Yun Fei was stunned L: "you two, I don't mean that..."

"That's what we mean..." the two old men said almost in one voice. After that, they were stunned at each other. After looking at each other, a faint smile appeared on the serious face.

Only by maintaining a high degree of consistency in these things can we devote all our energy to technical research. Otherwise, in the end, we will quarrel with each other every day and drag our feet. In the end, we don't expect any results.

"Xiao Hou, I didn't think you were the director of the 810 Institute..." Ma Fengshan was surprised when Yun Fei introduced the director of the 810 Institute.

"Ha ha, old ma, we haven't seen each other for many years..." Hou Mingrui said to Ma Fengshan with a smile on his face. Although he was surprised that Ma Fengshan didn't die, many of their institutes were "dead", so the degree of surprise was not too high.

Yunfei really didn't expect that these people actually know each other.

Isn't Hou Mingsong already in the 810 Institute at the beginning of its establishment? This guy seems to be just over 50, right?

Seeing Yun Fei puzzled, Huang qiaosong explained to him with a smile: "Hou Mingrui was only a younger generation in the turbofan 8 project. Although Lao Ma didn't study aviation power, he also taught him a lot. After all, the propulsion system is only a part of the whole aircraft."

Yunfei really didn't expect such a relationship between the two sides.

After a burst of greetings, they entered the research laboratory 100 meters underground through the Soviet expert building again.

When I came here for the first time, I was shocked by the introduction of Hou Mingsong and Huang qiaosong. Therefore, Yun Fei really didn't observe the huge space deep below because of the research beyond history and China's possession of such technology.

Basically, it is only responsible for some research, design and calculation. Of course, it also includes the assembly of the final process. No one knows how to transport these huge engines after assembly.

"Yanhuang type I is a gear driven turbine engine with a fan diameter of 80 inches. It is divided into three pressure zones, seven groups of impellers in each zone, and a total of 21 levels. Each level operates independently, and the noise of Pratt Whitney's jt8d-200 is smaller..." Hou Mingrui's introduction is obviously much more professional.

When the cloud came two days ago, he didn't introduce these parameters.

"The fan diameter is a little big for small regional airliners..." Ma Fengshan frowned when he heard Hou Mingrui's introduction. Generally speaking, fans with a diameter of more than 80 inches are used on trunk airliners.

GM's GE90 engine was the engine they were going to use on the trunk airliner yun20 at the beginning.

That fan is only 90 inches in diameter.

One inch is 25.4 mm, which means that the diameter of the whole engine is more than two meters, which is a little huge for small regional airliners.

"It's not big. The engines of regional airliners used in European and American markets are almost of this size..." Hou Mingrui said with an embarrassed face. He felt that experts like Ma Fengshan should not ask such a layman question.

Cheng shook his head from time to time, smiled and said: "there is nothing wrong with their old engine of this size, but the new engine pw6000 series specially developed by Pratt Whitney and general motors for regional airliners has a fan diameter of 60 inches. Of course, these engines have only begun ground tests now..."

If Yunfei hadn't proposed the best engine when negotiating with Pratt Whitney, Blair said that jt8d-200 was the best engine, and Yunfei didn't directly report this model. Blair had no choice but to ask his technicians to introduce them to this newly developed low thrust engine specially used for regional airliners.

Otherwise, Ma Fengshan and Cheng would not know from time to time.

These things, let alone keep secret to the Chinese, are kept secret to everyone. Although there are three companies competing in the aeroengine market, Pratt Whitney can't even compete with GE and RORO. Naturally, the newly developed strategic engine will not be disclosed to anyone.

Whoever takes the lead will occupy the market.

This is something everyone knows.

"Old ma, we have such a design here, but because we don't have research funds and materials, we are still in the drawing stage..." Huang qiaosong spoke directly when he heard the other party's words.

Although this was said to Ma Fengshan, his eyes were fixed on Yun Fei.

When Yun Fei saw the old Huang qiaosong, he was crying for money. He immediately became angry and bitter: "I said Lao Huang, don't look at me. Now I'm also the landlord's family, and I don't have surplus food. I don't want money. I want my life..."

Now he can't even borrow money. Yunfei naturally won't promise research funds when he hasn't determined whether the engine of 810 Research Institute can meet their use. You know, Huang qiaosong's face is absolutely thick enough. Yunfei will come to the door as soon as he opens this hole. He won't give up until he gets the money.

Under such circumstances, the J-10 succeeded several years earlier than the original world.

At present, factory 132 is engaged in j-20 without too much financial allocation from the state, and the capital gap is even larger. Huang qiaosong has asked Yunfei for this matter many times, but Yunfei has not let go. What's more, if the engine of 810 Research Institute is suitable for their use, they have to invest in building a factory or something. This is not a small sum of money.

"Are you?" Huang qiaosong turned his eyes when he heard Yunfei say so.

Under their gags, there was no trace of the embarrassment caused by Cheng's frequent saying that the aircraft of 810 Research Institute was too large and bulky.

"What is the design performance of a 60 inch diameter engine?" Ma Fengshan ignored Yun Fei and Huang qiaosong, but directly asked Hou Mingrui.

"The thrust is about 12500 pounds to 14500 pounds. If it is only used for regional airliners with a range of 600-1200 kilometers, it is not a big problem..." Hou Mingrui's eyes lit up when he heard Ma Fengshan's words. They have not yet produced a prototype for testing. They just stay in the drawing stage and simulate whether there is a problem with this design by computer, It's all because of lack of money.

Ma Fengshan has enough say in Yunfei's large aircraft project. Therefore, as long as he uses this to impress Ma Fengshan, Yunfei will have to pay if he is unwilling to pay.

"Moreover, it is preliminarily estimated that the cost of producing test samples will not exceed 500 million from 300 hours to 10000 hours, and finally 1000 hours of continuous test. It should be around 420 million to control all budgets tightly..."

Cost performance is the survival way of a product, especially a product that has not been put into the market and has been tested by the market, or even just a theoretical design. If investors want to take out the money in their pockets, they must tell them how much research funds they need to invest.

As for the market situation, it is naturally what investors consider themselves.

"Ma Lao, if you can use the engine with an 80 inch diameter fan, use it first. It's no problem to carry out a new engine R & D test later. Now we have to rescue... "Yun Fei saw Ma Fengshan and heard the figures reported by Hou Mingrui. He was ready to agree to this. He immediately spoke to stop Ma Fengshan.

420 million, that's a theory!

If there is a design problem or something, three 420 million may not be OK, not to mention that these engines have to continue to be studied even after they are put on the market.

It's not that Yun Fei doesn't believe that 810's 60 Inch aircraft engine can't be produced within 500 million, but he really has no confidence in it. If the other party is reporting a 2 billion or billions, his confidence may have to be sufficient.

"Yes, let's read the test data of these engines first." Ma Fengshan immediately understood what Yun Fei meant. He didn't even see the rabbit, so he let the Falcon out. When the Falcon was tired, he found the rabbit. At that time, the rabbit might not be able to catch it.

As China's own technical researcher, Ma Fengshan has no confidence in his own projects, let alone in others.

"When do you have time? Let's go to the northwest Gobi to see the high-altitude platform engine test over there. As long as the test is completed, the next step is the flight test... "Huang qiaosong didn't force Yun Fei.