Being able to get Xiao Yizhan's promise, Shen Yiyi felt relieved. She thought for a while and asked again: "Old Xiao, there is one more thing, how did you find someone to produce the drawings of the propulsion fan I gave you last time?" ”

Xiao Yizhan heard Shen Yiyi's question, and then remembered that Shen Yiyi seemed to have given him a set of drawings that were said to be propelling fan blades. After I got it, it seems that I directly handed it over to the workshop in the factory for trial production. At that time, I seemed to have preliminarily reviewed the drawing, and found no problems, and the processing requirements had been marked in detail, so there should be no problems. In addition, it was made by a master who was skilled in skills and techniques he found, so there should be no problem.

Thinking of this, Old Man Xiao said with confidence: "Don't worry, there is no problem." I think it's already done. As you know, this fan is a little less difficult than your engine, except that the curved surfaces are a bit troublesome. ”

Shen Yiyi understood what Old Man Xiao meant. Indeed, in addition to the irregularity of the geometry, the fan blades are much less difficult in terms of materials and processing than engines with complex structures and concentrated stress compared to engines that have to withstand the high temperatures of fuel fuel. Therefore, Shen Yiyi originally thought that the focus of today's inquiry was An Zhusheng from the 606 Institute, and he only called him to ask considering the relationship with Xiao Yizhan. She could already predict that if An Zhusheng knew that he didn't call him but looked for Xiao Yizhan first, how would An Zhusheng be dissatisfied with himself. However, she thought about it for a while, and it seemed that it was not she who entrusted An Zhusheng to undertake the engine at that time, but the old man Xiao Yizhan. In this way, it seems that there is nothing wrong with looking for Mr. Xiao Yizhan first.

"Okay, Xiao Lao, then I'll wait for your news. I hope that I will be able to get all the parts as soon as the day after tomorrow. Start assembly. In other words, it is best for me to get the data of the material test today. ”

"No problem." Old Man Xiao heard Shen Yiyi's request, but instead of feeling that it was difficult for a strong man, he thought that this was the style of people who should do business, and he must pursue efficiency.

After hanging up the phone, Old Man Xiao called the following and asked Luo Yu to go to the test laboratory in person to do the test. By the way, I also went to find my son-in-law to see the situation of the fan that I asked the workshop to help produce last time. He himself called An Zhusheng and asked about the engine.

As Shen Yiyi expected, when An Zhusheng heard that Shen Yiyi called Xiao Yizhan and asked about the processing of the engine, he was very dissatisfied. He was very dissatisfied that he had lost a chance to meet with Shen Yiyi, and that he had not been able to ask again about other possible formulas. So Old Man An complained to Xiao Yizhan.

"I said you old man Xiao, how can you do this?! It's obviously being processed here in our 606 Institute, why do you want someone to call you?! If you want to fight, you should call me! Have you ever done this? From the phone, you can hear how dissatisfied An Lao is.

But of course Xiao Yizhan would not take his dissatisfaction seriously. In fact. Xiao Yizhan even listened to An Zhusheng's roar quite enjoyably. The so-called "bad friends" probably refers to such a lifelong fun.

"I said Lao Antou, you're almost a little better. Do you really think I can control the behavior of a little girl like Shen Yiyi? People just call me, can I not answer? I also brought her engine to you. Without me, do you think you can know that there is still a little genius like Shen Yiyi in this world? ”

Xiao Yizhan said it quite straightforwardly. He really thinks he has a clear conscience. As for Mr. An Zhusheng's protest, he didn't hear it at all. Anyway, when he didn't want to use the topic to play, he took the opportunity to ask for more "benefits", which was strange.

"Alright, Lao An. We don't have much to gossip. The little girl had already said that she wanted to get the machine earlier. Together with the components we have here, it is best to be able to assemble the first prototype the day after tomorrow. How's your doing? Okay or not, give me a clear word. ”

An Zhusheng thought about it for a while, regardless of whether Shen Yiyi came to find him or not, but the little girl should know very well that this engine was processed here. So if there is a problem with the delivery or quality of the engine, I will definitely be blamed by the little girl. In that case. It will be troublesome to ask her to derive some formulas for herself in the future. So in this matter, I still have to cooperate with Xiao Yizhan's request.

Although there was really some reluctance in his heart, Old Man An Zhusheng still said to Old Man Xiao: "The drawings and lists on my side have already been placed. I also believe that there should be no big problem. Of course, on our side, she has all the materials she requires, and there are also processing methods. But after all, we haven't produced a piston engine for so many years, and I don't think we are so skilled in assembly. But in this case, I'll call again and ask if it's all assembled now. If it's assembled, I'll ask them to do an ignition test quickly. ”

The two old men are still very cute when they are serious. Because some of the issues they discussed were no longer nonsense, but they were able to say something. Therefore, Old Man Xiao did not follow any petty behavior, but nodded in agreement with Old Man An's opinion.

"Okay, you can call your workshop below. I'll rush over now. If all the workshops below you have completed the assembly today, then let them enter the ignition trial operation stage immediately. I'm going to witness it too. "Old Man Xiao is actually still very excited. In his eyes, this engine, regardless of the level of skill, can be said to be the first piston aero engine that he has seen again in so many years, even if it is actually only used for a wing parachute flying at extremely low speeds. So even if the two places are a little far apart, and it is not early now, he still wants to go to the test site.

Old Man An actually had the same idea, so he agreed without saying a word. He also had another idea, just taking this opportunity to hand over the engine to Shen Yiyi's classmates, and discuss with Lao Xiao what good things he could dig out from Shen Yiyi.

After hanging up the phone, Old Man Xiao ran out of the house. Of course, he had already called the factory before and asked to arrange a car to take him to the 606 Institute. Shen Yiyi's eagerness on the other end of the phone just now has also infected the old man Xiao Yizhan. He is really racing against time now, as Shen Yiyi hoped. In addition to the more detailed division of labor, there is also a big point that teamwork is the guarantee for the success of this kind of work. After a period of work in the past, the two old men have long regarded themselves as inseparable members of Shen Yiyi's project, so the two old men are not lacking in the work attitude that the team needs.

In the 606 Institute, after hearing that the old man Xiao Yizhan hung up the phone, An Zhusheng turned around and asked the few people who were still around him: "Do you really think that this set of drawings has secrets that you can't imagine?" ”

Deputy Chief Engineer Zhou nodded. He himself didn't believe it at first. A little girl who is only in high school may of course be some genius who can make some discoveries in certain areas of arithmetic. This is not surprising, because there are many famous people in the history of mathematics who made many very important discoveries at a very young age. But this time it's a process problem! Who can believe that a young girl in the prime of cardamom can be so familiar with the process of product processing, especially the assembly process of the whole product?

"Yes, Mr. An, our assembly master said that the accuracy requirements for processing on this set of engine drawings are very disordered in our opinion. The high precision can reach IT3, but the other parts of the same part even have IT8's. So at the beginning, we were very skeptical about the design level of this set of drawings, and even doubted whether this set of products would be able to be installed during assembly after processing. Therefore, at the beginning, our workers and masters even told us many times that they should stop and not process, so as not to scrap in vain and waste valuable raw materials. It was only with your and Xiao Lao's repeated insistence that they completed the production of each component, but they were ready to encounter big trouble during assembly. ”

"However, when it came time to assemble the assembly, we realized that the actual assembly was very different from what we had envisioned. The frustration knives and rubber hammers prepared by our master fitters were not used once. Even our master workers told me that the assembly of the parts was easily completed with little effort. They were all saying that they never thought of it. ”

When Deputy Chief Engineer Zhou described this situation, he also felt a little incredible. People like them, who have worked in the industry for so many years, are already familiar with assembly, but they have never seen a complex workpiece without using a hammer, so he has reasonable doubts: "Mr. An, I doubt that there will be problems with the dimensional tolerance chain of this set of drawings, especially whether there will be air leakage." ”

When An Zhusheng heard Deputy Chief Engineer Zhou's description, he couldn't help but feel a little embarrassed. From experience, he believes that Deputy Chief Engineer Zhou is not wrong. Our Chinese piston engine, because of the assembly process problems, the phenomenon of running and dripping is very serious, so after discovering the assembly abnormality of the workpiece, it is reasonable to have such suspicions; However, since the designer of this set of drawings was a magical girl like Shen Yiyi, he felt that maybe this was a good omen for a new discovery?

After pondering for a while, Old Man An said, "That's it, just forget it when it's installed." Now that Old Man Xiao is rushing over, he will tell him the situation directly, and see if he wants to simply enter the procedure of igniting the bullet train. (To be continued......)

PS: Work fatigue, even more so, I tried my best.

If you still have tickets in your hands, you can smash them before the end of the month, lest they be invalidated next month.

Xie Lu thanked the relatives who came to reward the vote in the past two days.