After bidding farewell to this special non-commissioned officer, Qin Shuai returned to his dormitory thoughtfully.

Linda originally wanted to help Qin Shuai, but these things were too cumbersome for her to understand, so she left Xiaoduan and Qin Chuan, hoping that the two of them could give Qin Shuai some help.

Qin Chuan just looked at Qin Shuai who was too tired recently and wanted him to rest more, but looking at these models in his hand, Qin Chuan also felt very curious, in fact, Qin Shuai only needs to find a suitable venue and use its special rays to expand it, and he can use it directly, because this person is extremely fine, just add some detailed parts to it.

But he didn't find a suitable site, in fact, he had long imagined that the tank base around his house could be used, but now the Union would rather let this place sit idle than give it to other armies, so this place can't be considered.

There was an open space in the military factory before, and I didn't know if anyone was willing to let him use it, so he called the military factory, because his military rank had been improved now, so Zhang Zhishuang heard Qin Shuai's voice when they received the call, and they felt very excited.

However, the efficiency of the military factory has not been good, so it was rented to him at a fixed price for two months.

Qin Shuai immediately agreed. Jiang Linda felt that this was too much of a drain on the funds he had received before, but Qin Shuai said that everything was worth it, so he made this place into some tents like black cloth, and there was his ray net on the perimeter to protect it, so no one else would come to snoop.

This black tent is very huge, in fact, these operational models are placed in it, Qin Shuai used rays to turn them into the size of a real flying machine, and then processed and reprocessed, and finally became a real flying machine.

When Qin Shuai took Linda to visit, Linda was dumbfounded, she didn't expect that the small model would become such a militarized thing in Qin Shuai's hands, but after all, it was not approved, so Qin Shuai needed to apply for approval step by step, and then he could put it into the army for use, and he didn't know the stability of its ray, in case it shrank again and again, it became the size it used before, so he couldn't use a real soldier to operate this type of aircraft, he had to use a robot.

Qin Shuai selected a few from the robots he designed, placed one for each model aircraft, and then prepared to be ready to go at any time and obey him, and then he set out to make a real flying machine by himself, so in this black tent, several behemoths appeared in a few days, Jiang Linda was amazed, and Qin Chuan had not come to visit.

Qin Shuai was worried that he would tell Regiment Leader Qin as soon as he was excited, that Regiment Leader Qin was a violent temper, and maybe he would let them participate in the battle with a stroke of his pen, but after all, it had not been approved by the upper echelons, so this thing could not be marketed now.

Therefore, Commander Qin still didn't know anything about the current situation.

Linda seemed to have entered the Grand View Garden, visiting around one aircraft after another: "...... I can't wait, I don't know what kind of spectacle it will be when they fight aliens in the sky, I see these things are so exquisite, I have never seen such a gorgeous flying machine. ”

The words she had now could no longer describe her excitement, and its practical opulence and sophistication could no longer describe this flying machine, and Linda admired that the child's father was able to make such a thing, as if his own father was also blessing them in the dark.

Jiang Linda had already thought of the worst result, even if her father was no longer there, but her father's mental state would be passed on, but Qin Shuai had always been sure that Linda's father was still alive.

Qin Shuai asked Linda for help: "Recently, you also have to read more books on flying machines, maybe you can do some staff for me when the time comes, after all, my strength alone is too small, and sometimes I will inevitably be sleepy and tired." ”

Linda recommended Qin Shuai to enter their military library, which has all kinds of books, maybe you can use it, she has an electronic library card, Qin Shuai has been busy borrowing books these days, borrowing a lot of books, and even filling the bookshelves in his home.

Linda didn't know what he saw, but he never forgot it anyway. Linda needed a detailed analysis, and the two of them spent the night together discussing how to build a flying machine.

She found that Qin Shuai read books quickly, but he remembered them very accurately, and made some marks with a marker pen, but the books in the library were not allowed to do this, so she reminded Qin.

Qin Shuai erased these symbols with other markers, which were special pens designed by himself. They react against each other and eventually become colorless and transparent.

Qin Shuai took advantage of the time of the night, Linda had already gone to nap and go to sleep, but he began to work on making things he liked in the study.

Early in the morning of the second day, he led Linda to the study and showed her his results: "I have learned these in the past few days, and then I have also made some special material flying machines, you can take a look."

Linda admired the model he made and listened to Qin Shuai while explaining to him: "The aircraft I made this time actually involves aerodynamics...... Aerodynamics has practical applications in aircraft design, which are mainly affected by the two components of aerodynamics, lift and drag. …… The lines that move through the air are called relative winds. The component of the gas dynamic force that is produced perpendicular in the direction of the relative wind is the lift force. And the component of force that moves parallel to the opposing wind but in the opposite direction is the drag, which is the force that tries to pull the object backwards, hindering the progress. The drag force is partly due to lift and partly from the shape of the object and surface friction...... Now my aircraft should try to remove some obstacles in the air, so that I can better fight against aliens. ”

“…… When an object with a symmetrical shape moves according to the axis of symmetry in alignment with the relative wind, there will be no lift, only partial resistance. If the axis of symmetry is at a certain angle to the relative wind, both lift and drag will be generated, which together form the resultant force. In terms of stress, a high lift-to-drag ratio should be the best solution when designing aviation aircraft. Designed to produce the maximum lift, the basic wing profile of the aircraft is the wing, and due to the progress of various science and experiments, it has gradually been found that the curved surface is the best solution for the wing profile......"