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It usually takes a whole day for an ordinary senior mechanic to transform a Skywing. First figure out the structure of Tianyi itself, get the modification idea, and then complete the specific transformation plan according to this idea and implement it.

Liu Yijin is not an ordinary senior mechanic, his research on the Heavenly Wing has reached an extremely high level, and it took about three hours to transform all the four existing Heavenly Wings in the Breeze Training Ground, and he also repaired the damaged Heavenly Wing!

This is not just a proposal for transformation, but a real and real completion. In the end, the five Sky Wings were completely new, leaving only a small part, because the tools were not available or the accessories were not complete, and there was no way to implement them directly. Even so, he also taught Cen Chudie the transformation process and implementation methods in detail, and when she turned around, she could just find an organ master to bring tools and accessories to complete it.

Cen Chudie was inexplicably grateful!

In the past, the Breeze Club had to renovate a Sky Wing, and it would cost at least 10,000 gold coins. To be honest, the cost of a retrofit is no cheaper than buying a new one.

However, the so-called transformation is enhancement, and it is still tailored to the performance of Tianyi itself and the usage habits of the operator, which requires additional efforts from senior mechanics, of course, it is not cheap!

Five Tianyi is 50,000 gold coins, and Liu Yijin casually completed it in one night!

Moreover, Liu Yijin is not an ordinary senior mechanic, even Cen Chudie can see that his transformed mechanism Tianyi, whether it is speed or control feel, has been enhanced by at least 30% compared to before!

Cen Chudie cautiously asked Liu Yijin about the relevant expenses, and Liu Yijin widened. Impatiently said: "Play with the things in your hand, what money to charge!"

Cen Chudie became more and more grateful, and the service became more and more thoughtful, almost to the level of meticulousness.

Liu Yijin is still very satisfied with this little girl, but his focus is not on this at all. Transforming Tianyi is just idle and bored to pass the time, while he is transforming, he is still paying attention to Chang Ming's side - this kid has drawn a drawing, why hasn't he finished it yet?!

However, he also knew that he was demanding, and it was so easy to completely renovate, which was not much different from designing a new one. Especially Chang Ming is only a junior mechanic. After an afternoon of exchanges. Liu Yijin could also hear that he hadn't really been exposed to this knowledge. How can this be done quickly?

To be honest, Liu Yijin didn't plan to let him finish it all, he pondered that Chang Ming would finish part of it. After getting a feel for the general idea. It's up to you to take over.

To this kid. Liu Yijin changed his impatient attitude at noon and felt very satisfied.

He didn't expect it, and chatted all afternoon. Chang Ming was able to really find the problem of Jiaolong's special type, and he was so bold and the transformation plan proposed was so bold!

The best thing is that this idea is very consistent with Liu Yijin's own - he thinks so too!

Liu Yijin finished changing the five Tianyi, picked up a cup of tea, and observed Chang Ming on the side for a while, his expression of appreciation almost overflowing from every wrinkle.

He finished drinking a cup of tea, glanced at the time for three hours, and decided to ask Chang Ming to stop. Now this kid should understand and digest it almost completely, and the next work will be taken over by himself, and he can continue to teach him while doing it.

This world pays great attention to the relationship between master and apprentice, even between master and apprentice, there are often places to hide and not talk about, it is really rare for Liu Yijin to not let Chang Ming apprentice, and think about how to teach his organ master first.

Liu Yijin put down the teacup, walked to Chang Ming's side, and stretched out his hand to pat him on the shoulder. As soon as his hand stretched out, before he touched Chang Ming's body, his gaze fell on the drawings on the table.

Liu Yijin retracted his hand suddenly, stared at the drawings with wide eyes, and even breathed lightly, for fear of disturbing his work!

The paper is already densely covered with lines, forming a myriad of fitting structures. Chang Ming not only drew them, but also annotated each structure.

These notes are not entirely explanatory, and sometimes they are self-answering. Obviously, it was written to organize thoughts, and it was written for Chang Ming to read for himself!

"Why is this going here, and is there any better solution?"

"Does this design have an impact on the wind?"

"What should I do if I encounter a sound barrier when I am close to the speed of sound?"

Some questions are followed by two or three answers, while others are left blank as reminders.

Chang Ming's work is still going on, and it is obviously in the late stage, and the entire Sky Wing is about to appear on the paper, symbolizing that his work is almost complete!

It's so fast, it's well done!

Liu Yijin's gaze gradually fell on those empty questions.

These questions were written for Chang Ming himself, but they also seemed to be asked to him.

Some questions, Liu Yijin's gaze only passed, and some questions made him show a thoughtful expression.

Especially about some issues about fuselage design and wind resistance, he had paid attention to it before, but now he found that Chang Ming's thinking is clearer!

Finally, Chang Ming completed all the drawings, and all the structures appeared clearly and comprehensively in front of the two.

This new Jiaolong Tianyi is simpler and more compact than the original Jiaolong special type. Its idea is very clear, that is, the energy system directly drives the engine to enhance the power of the engine, from "flying with the whole sky wing" to "flying directly with the engine"!

Chang Ming didn't put the pen down, but stared at the drawing, frowning tightly.

He always felt that something was wrong, but he couldn't think of it.

Liu Yijin swept the drawings and gently spit out two words: "Center of gravity." ”

Chang Ming patted his head, and his face suddenly brightened!

Yes, the structure of Tianyi has changed so much, of course, the center of gravity has also changed! Now in this design, the center of gravity of Tianyi is in the back, that is to say, when Tianyi is flying, it has to forcibly "stand up" in front, which of course will consume additional power!

Chang Ming sneered embarrassedly, bowed down again, and began to make changes.

It didn't take a while. The drawings were changed by him in a mess, Chang Ming simply threw away the drawings, took a blank piece of paper and began to draw again!

Although he drew smoothly in the front, after all, he was doing it while thinking about it, and the speed was far less fast than the current "ready-made" painting.

Soon, another new, clean drawing appeared in front of Chang Ming, he finished the last stroke, and after browsing it, he straightened up and breathed a sigh of relief.

He turned. I saw Liu Yijin looking at the drawing that was messed up. He stared at somewhere on the drawing. His brow furrowed tightly.

Chang Ming wrote a lot of bits and pieces on that drawing, and he scratched his head and asked, "What's wrong?

Liu Yijin raised his head and asked a little confusedly: "What does the speed of sound mean? What does the sound barrier mean?"

Chang Ming said: "The speed of sound is the speed of sound. Approximately 340 meters per second. approaching this speed. You will feel a lot of resistance. It's like Tianyi has fallen into the water. ”

He gave a brief introduction, but Liu Yijin's expression was very shocked: "How do you know?!"

As soon as Chang Ming finished speaking, he found that the atmosphere was too good. I said it all of a sudden. Sure enough, as soon as he finished speaking, Liu Yijin asked.

In this short moment, Chang Ming had already figured out how to answer, he smiled slightly, and said, "I saw it mentioned in a book before, and I suddenly remembered it just now. ”

Liu Yijin followed up and asked, "How to solve it?"

Even Chang Ming didn't know about this, he shook his head honestly.

Liu Yijin fell into deep thought again, and he muttered: "The speed of sound, the sound barrier...... So that's it! It's all about speed! No wonder, no wonder!"

Apparently, he has also experienced such a situation in his research, but he does not know what caused it. He sat on the chair and looked up at the sky, his eyes were scattered, and the whole person was already immersed in his own thoughts.

This problem has been bothering him for a long time, almost forming a bottleneck. He had been very confused and had no idea what was going on.

Now, even if he still doesn't know how to solve this problem, at least he already knows the reason! As soon as Chang Ming said it, he knew that what he said was right!

Liu Yijin's expression gradually became brighter, he jumped up and patted Chang Ming's shoulder hard: "Thank you, thank you so much!"

Chang Ming handed him the drawings and asked, "This is the result of my transformation, how about you take a look?"

Liu Yijin nodded and said: "Yes, this is the idea, there are still some places to pay attention to in the details......" He picked up the pen and was a little reluctant to start in the face of the rare drawings.

Chang Ming said nonchalantly: "You can change it casually! If it is broken, I will draw another one!"

Liu Yijin said "hey", and sure enough, he drew a few circles on it and mentioned a few points.

Chang Ming was mentioned by him, he was stunned at first, and then suddenly realized. He thumped his head: "Negligent negligent ......" followed by taking the pen and revising it on the paper!

"Sonic speed, sound barrier......" Liu Yijin was distracted again, and muttered these words over and over again in his mouth.

After Chang Ming finished painting, Liu Yijin came back to his senses and said: "You are very smart, and the drawings have been changed very well! I promised you just now, if the drawings are changed well, I will give you a gift!"

Chang Ming laughed twice and said, "Then I'm welcome!

As soon as Liu Yijin stretched out his hand, a book appeared in his hand, and he said: "This book is a reward for drawing pictures well for you!"

After Chang Ming took it, Liu Yijin stretched out his hand again, and a roll of drawings appeared in his hand out of thin air: "This drawing is to thank you for your kindness just now!"

This scroll of drawings is wrapped in a golden metal cylinder, which is a special cylinder for placing the drawings, which is covered with extremely fine huā patterns, and the color of the cylinder is something Chang Ming has never seen before!

Liu Yijin reluctantly touched the cylinder a few times, handed it to him ruthlessly, and said: "I have been getting this drawing for a long time, and I have never had the opportunity or ability to do it." Now that I'm so old and don't have a good apprentice, I guess there is no hope in this life. Now I'll give it to you, you can do it, you can't do it, you can learn a lot just by looking at this drawing!"

Chang Ming took it blankly, and when he looked at the mark on it, he was stunned-

Grandmaster Blueprints!

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