The concept of gliders had actually been proposed by Liu Yi, but it was not proposed in the Airborne Forces, but when he established a physics discipline with a group of pedants, Liu Yi proposed it.

It's just that at that time, there were too many things that Liu Yi proposed, and most of the celebrities and scholars who participated in the research couldn't understand them, and many new terms were now in a research stage.

For example, what Liu Yi told them about the earth's gravity, physical force, gravity or something, these things they all feel scratching their heads, these things, before they are not proficient in mathematics, I am afraid it is really a bit difficult to understand, at least, after learning how to use the number jù to measure gravity, gravity, etc., they can really understand what is the earth's gravity, what is gravity.

Gliders, which have been very common in later generations, are generally divided into two types: powered gliders and hang gliders. It is impossible to build a power glider now, and what Lewi wants to make is a hang glider.

The hang glider, without landing gear and cockpit, is quite simple for the pilot to glide under the lifting surface, which is why Liu Yi is confident that he can get it.

The take-off method of a hang glider is relatively simple, the pilot holds a light wing in his hand, runs on the ground against the wind, or runs down the hillside, as long as he can grasp the windward angle of the wing. This glider is easy to maneuver, and under normal conditions it can learn to maneuver in a day and perform aerobatics in a few months. Piloting this glider, a person flies like a bird in the air, if using the updraft. Can fly higher.

What Liu Yi came up with was a two-seater hang glider.

Because there are simple and common glider structure drawings and so on, Lewi doesn't even need to test. Directly according to the picture let people make it. For some of the more demanding structural places in the glider, Liu Yi does not have to worry, because according to the blacksmith process of the New Han Dynasty, it is completely possible to make some solid alloys. At the very least, the quenched steel can be made.

Liu Yi ordered people to move all the objects that were made to a relatively gentle hillside.

Then under the gaze of the three daughters and a group of students from the Xishan Military Academy and some tutors from the Xishan Military Academy who heard the news. Lewis began assembling hang gliders.

Hang glider, the general structure, has the main wing, aileron, spoiler, horizontal tail, vertical tail, elevator, rudder and so on.

Because there are graph jobs. So, it didn't take long for Lewis to assemble a hang glider.

On the hillside, a hang glider with a main wing width of about 15 meters was successfully manufactured.

According to the accounts of later generations. Hang gliders. Blank records are 19 hours and 45 minutes. The flight range is 150 km. This is the record for the longest flight time and the longest flight distance of a hang glider.

Liu Yi made a move in this Xishan Military Academy, although it has not yet been officially test-flown yet, but it has already attracted Lu Zhi, Cai Yong, Pang Degong and others who stayed in Luoyang.

Liu Yi was surrounded by these people, if he didn't make an explanation of this suspended flying machine, I am afraid that it would be really difficult to test fly with the third girl.

There was no way, Liu Yi had no choice but to say to everyone: "This thing is called a hang glider, which can carry people." In a day's time, it can fly about 200 miles. As a matter of fact. It could be a little faster. Well, I believe everyone should be familiar with kites, the principle of this glider is also based on some principles of kites. You have to rely on the direction of the wind to fly. Now I have come up with this because I want to test whether it can be successfully flown and if it succeeds, then the Ministry of Military Industry will immediately make a batch according to this pattern for the use of the airborne troops, and only with this airborne aircraft can our airborne troops live up to their name. The officers and men of the Airborne Forces, now carefully watch how I control this aircraft, and we will talk about your control and piloting in the future. ”

There was a coax, and the crowd of onlookers on the hillside, although they already knew that this thing could fly, but now listening to Liu Yi's explanation and explanation made them a little excited.

"Lord, please wait, you said you personally test the flight? W-That's not good, right? If it does fly into the air, is it dangerous? Lu Zhi was surprised, and couldn't help but worry about Liu Yidao.

"Everyone, please rest assured, if you are not sure, Liu will not get this thing out, well, not only me will test fly, but they will also follow me." Liu Yi said, pointing to Zhen Luo, Zhen Mi, and Cai Yan.

For gliders, Liu Yi is really no stranger, in later generations, Liu Yi occasionally went to the glider club with some upper-class boys to play once or twice, so for how to control this hang glider, Liu Yi is quite familiar. As long as the umbrella bones and some trunks made by the blacksmith are not too bad, there will be no problem in safety.

A two-seater glider, with a light-bodied three girls, is no problem at all.

"I—Can we really do it?" Zhen Mi was so excited that her face turned red and said simply.

"Of course, come here." Liu Yi beckoned to them.

Zhen Mi walked to Liu Yi's side in a hurry, but Cai Yan was a little reserved, after all, she was a little shy in front of everyone. However, under the pull of Zhen Luo, she still walked to Liu Yi's side.

However, in the hearts of the three women, they did not doubt whether this glider could take them to the air, in their hearts, there was an invisible confidence in Liu Yi, as long as Liu Yi said that it was okay, they would think that it was okay.

Liu Yi first hugged the Zhen sisters on both sides of the grab pole, and then fixed their bodies with a sturdy cloth strap and climbed on it lightly. Then he picked up Cai Yan all of a sudden, let her crawl in the middle, and Liu Yi crouched behind her again.

The actions of Liu Yi and the third daughter made many students of Xishan Military Academy extremely envious, compared to them, the Zhen sisters and Cai Yan are the goddesses in their minds, but now they are so close to Liu Yi. Of course, everyone can only envy it. But he did not dare to have any other thoughts.

The preparation was not complicated, Liu Yi waved back the people in front of him, and then waved his hand to the people around him: "Okay everyone." We'll see you another day, let's go! ”

The glider is not heavy, with Liu Yi's strength, it can be lifted completely, and now, Liu Yi only needs to use his hands to exert force, and he does not need help from others at all. You can lift the glider off the ground, rush forward with your feet, and slide forward with the glider.

The three girls were all a little excited at the moment. may be out of trust in Liu Yi, they are not afraid of nervousness, but their beautiful eyes widen, feeling the wind brought by Liu Yi's forward rush.

The slope of the hill is gentle downward. You don't have to go far to get off the ground.

Liu Yi hugged Cai Yan who was in his arms. said to the third girl: "It's about to fly, are you nervous?" Don't be afraid, if you're afraid, close your eyes and open them when you're in the air. ”

"I'm not afraid, with Brother Liu Yi, we are not afraid. Right, Sister Luo, Sister Yan? Zhen Mi said a little excitedly.

"Haha. Okay, let's fly together! ”

Liu Yi rushed a few steps, the glider ate the wind, the main wing suddenly seemed to be tightened by the wind, hula, the glider took Liu Yi and the three girls rushed out at once, at first it was along the hillside and rushed down, followed by Liu Yi's control, the glider was like a bird, suddenly raised its head, and rushed into the air.

There was a coax, and the people watching on the ground watched the glider fly into the air with Liu Yi and the three girls, and they all exclaimed.

Now the north wind was blowing, but it was not a strong wind, and the glider was gliding in a southeasterly direction.

However, under Liu Yi's control, the glider made a big circle in the air, circled back above the crowd on the hillside, and said hello to the people below loudly, whether they heard it or not, and then made another hula and flew towards its destination.

For those who saw Liu Yi fly into the sky with his three daughters, this is undoubtedly a miracle, and they are all so excited that they are incomparable.

It came too suddenly, if Lewy hadn't come up with this glider, who would have imagined that anyone could fly into the sky? Who would have imagined that anyone could fly?

Fortunately, Liu Yi has always been a little mysterious in their minds, otherwise, they would have to entangle Liu Yi to get to the bottom of it, and find out how Liu Yi got the so-called glider.

Looking at the glider that looked like a big bird flying away, the crowd on the hillside did not disperse for a long time.

However, some people from the airborne troops remembered what Liu Yi had told them before he flew away that this kind of glider would be equipped in their army for their use, and they immediately couldn't wait, and immediately found the craftsman who created the glider structure for Liu Yi, and asked them to build it immediately according to what was built for Liu Yi.

All of a sudden, the entire Xishan Military Academy set off a craze for the study of gliders that could fly in the air.

"Ahhh......h It's beautiful......"

At the moment, the third girl really didn't have any nervousness or discomfort in the air. Being able to let them fly in the air is in itself a romantic event that they will remember for a lifetime, not to mention, the vision of the earth in the air is full of beauty.

Look at the pedestrians the size of ants below, and look at the tender green land, those farmlands, divided into grids, these are unimaginable and impossible to see in ordinary times.

The three girls screamed unwillingly, and even Liu Yi was a little excited, and finally found a lot of youthful excitement.

The broadening of horizons really broadens people's minds.

In fact, Liu Yi made a glider, not only Xishan Military Academy, but also the whole of Luoyang was shaken by this, especially the people who were lucky enough to see Liu Yi and the three girls flying through the air, all of them were full of yearning for something that could fly in the air.

More than 20 miles away, the Liufu Courtyard under construction did not take long to fly there.

Liu Yi landed safely with the three daughters, but the three daughters were still unsatisfied, but Liu Yi did not take them to fly again.

"Brother Lew, how did you come up with it? Sometimes, people really don't know what you have in your head that can make us fly in the air. No, people still want to fly. ”

Zhen Mi and the other three daughters admired Liu Yi incredibly.

"Hehe, it's not easy to fly, this glider, just stay here, you can usually study it, just control it according to the method I just told you in the air." Remember what I told you about the precautions, later. You can fly yourselves. Liu Yi hugged the people they came to greet and said.

"We fly on our own? May I? ”

"Of course." Leo said affirmatively.

"Great, that's it. In the future, if people think of Brother Liu Yi, they can fly directly to Brother Liu Yi's side. ”

"Uh, this...... It seems that it is possible, but not for the time being, after the unification of the Han Dynasty, the husband will take you with him. Fly around the big man. ”

Liu Yi was stunned for a moment, and felt that this mention yì was really good, at least. With gliders, it seems that it is possible to shorten the distance around Dahan. Well, it would be nice if a power unit could be made. When the time comes, you will really be able to get an airplane.

Airplanes or not. It's too fast. It is not possible to have a truly tough alloy, but Liu Yi thought to himself, can he make a car?

Oh, think far, in fact, with the encyclopedia of solar mobile phones, many things. Liu Yi can take it out for people to try research and development, maybe he can't say. At that time, you will really be able to get a lot of technology from later generations.

However, these are really not in a hurry, at least, the culture of later generations has not really been popularized, and if it has not been mastered by people of this era, it is impossible to get it by relying on Liu Yi. The encyclopedia in the solar mobile phone can only be used as an inspiration to give people in this era a direction and goal of research and development, and many technologies, with the current productivity and scientific and technological situation, are unlikely to be able to be messed up.

Therefore, in a short period of time, it is impossible for Liu Yi to suddenly advance this backward ancient era to the era of science and technology side by side with later generations.

In other words, in his lifetime, Liu Yi can see that he can get electricity and engines, which is already quite good.

Liu Yi and the three daughters fell from the sky, and they had already alarmed the people who built the Liu family's courtyard by the Luoshui River. Among them, Long Xin and other women are also here.

They were really surprised to see Liu Yi and the three girls flying from the sky.

The women came around, seemingly ignoring Liu Yi, but around the glider, pulling three beautiful girls to ask about the situation.

It wasn't until dark that the women had the glider carried into the courtyard, which had not yet been fully built.

Although it is also the Luoshui River, it is not the Luoshui River, but in a lake close to the Luoshui River.

For the women, the Liu Family Courtyard in Dongting Lake Xinzhou is already very perfect, so the building here is actually a bit of imitation, and there is no need to redesign.

A small attic has been built on the edge of the hot springs in the middle of the mountain, but only the main building and some attached buildings at the bottom of the mountain have not been built or have not been built.

The women led Liu Yi and the three daughters to a small courtyard on the mountain that had been built.

The women still revolved around the topic of gliders flying in the air, such as Yin Lingshan and others, they all lined up and asked Liu Yi to take them to the air for a circle. Liu Yi had no choice but to agree to them one by one.

When night fell, all the women also knew each other, and they all knew that Liu Yi and Zhen Luo, Zhen Mi, and Cai Yan did not have a real round house, so they specially arranged the three daughters to rest in a small courtyard, and left Liu Yi behind, and did not pester Liu Yi.

Liu Yi accompanied the three daughters, and told them some things that made them feel fresh, which made them a little excited all the time, and their faces were always red and simple, and they couldn't wait for Liu Yi to take them to try to play those novel things one by one.

In the end, Liu Yi said like a strange uncle: "Hehe, there is another thing that is very exciting and novel for you, and it will make you happy like a fairy, you must not have tried it, and this thing, you don't need to prepare much, you can experience it immediately, how about it?" Would you like to give it a try? ”

"Okay, okay, Brother Liu Yi, then hurry up." Zhen Mi clapped her hands without any scheming, looking very elegant and cute.

Well, for Liu Yi, the three daughters are all around sixteen or seventeen years old, and in that era, they are already adults, but, in Liu Yi's mind, they are actually just some little Lori, at least, their bodies are still relatively young, and they are not completely grown.

They are different from the original Huang Wudie, when Huang Wudie was about the same age as them, she could be called a child-faced and busty Lori. But the three girls in front of them, they can only be said to be Xiaohe at most at the moment. With a little scale special policy, but it is not really a long opening, it is estimated that it can be grasped.

But. Liu Yi really couldn't help it at the moment, being with the three girls, feeling the temptation of the youthful atmosphere exuded by them, which made Liu Yi feel that it was time to pick.

"Well, then let's go wash first, it's been a day, and I'm sweaty. Let's go and soak in the hot spring water together, and the fatigue of the day will dissipate. Liu Yi stood up and took Zhen Mi's soft and boneless little hand.

"Wait. Bad brother, what are you talking about as a novelty? Zhen Luo was not like Zhen Mi, her little face suddenly looked at Liu Yidao with a little vigilance.

In Zhen Luo's mind, a lollipop milking cow or something flashed when Xiaoerhou was tricked by this bad brother into eating. She felt a little ashamed when she thought about it now. Although she already sees herself as Lewi's person. However, in her heart, she felt that she couldn't play that game with Liu Yi anymore, which was embarrassing.

"Hehe, we'll find out later." Liu Yi pretended to wink at Zhen Luo mysteriously: "Actually, you know Sister Zhen Luo......"

"Ah, you scoundrel, there's really nothing good about it, Sister Mi. Don't, ignore him. Zhen Luo listened. Sure enough, I couldn't help but feel ashamed, and hurriedly came over, grabbed Zhen Mi, and didn't let Liu Yi take Zhen Mi to the bathroom.

"Sister Zhen Luo, what do you know about Brother Liu Yi?"

Cai Yan was a little inexplicable, she didn't know the little secret between the Zhen sisters and Liu Yi.

"Brother Liu Yi is the worst, let's just don't listen to him, let's go, let's go back to the room by ourselves, don't worry about him." Zhen Luo is embarrassed to say it clearly? He just took a girl in one hand and wanted to pull them all into his room.

"What, Sister Luo, you don't want to be with Brother Liu Yi? You and Sister Cai should go back to the room first, and they will be with Brother Liu Yi. Zhen Mi didn't think of anything for a while, of course, even if she thought of something, with her attachment to Liu Yi, she wouldn't care. In her mind, what her sister has never asked her to say is nothing more than being close to Liu Yi, but so what? She loved the feeling of being with Lew.

"Uh, sister, you...... Okay, no matter what you do, I heard Sister Lingshan say it, it will hurt, just don't cry for a while. Zhen Luo's heart is more mature and sensible than her sister or even Cai Yan, she already knows the little thing between men and women, and even secretly asked Liu Yi's women privately about the feeling of doing that, so she knows what it hurts when a woman is the first time.

"Hmph, Brother Liu Yi plays some new things with others, where does it hurt? Brother, you said yes, right? ”

"Mmmm, it doesn't hurt too much, let's go, leave them alone, let's go first." Liu Yi grabbed one of the women first and then said, ignoring Zhen Luo and Cai Yan first.

"You guys ......" Zhen Luo blushed and didn't know what to say.

"Hey, let's go." Liu Yi picked Zhen Mi up and hugged the warm nephrite to the bathroom.

A young girl who has not yet been really developed is really very different from ordinary women. Their skin has a firm elasticity that is different from that of ordinary women, and it is particularly smooth.

In the bathhouse, the hot spring water brought in by the long bamboo has been flowing all the time, and it has already filled a bath covered with snow-white porcelain tiles, and it is overflowing.

There are no maids here yet, so Liu Yi had to do it himself.

Putting Zhen Mi on the edge of the bath, Liu Yi first removed the generals on his body, jumped into the bath and stood, and said to Zhen Mi, who was suddenly a little ashamed: "Sister Mi, come on, let my brother dress you widely." ”

"Brother...... It's—that's not good......"

"Haha, silly girl, what's so bad? When you were a child, didn't you often ask your brother to dress you in wide clothes? Why is it not good now? ”

"No, no......" Zhen Mi seemed to be thinking about it now, and secretly glanced at Liu Yi, who was already fully armed, strong and well-proportioned, full of key beauty, and bowed his head and said: "What my sister said, people have grown up, and they can no longer be with their brother like they used to be when they were children...... And brother naked. The body is ...... opposite."

"Hah, how could it not? Don't listen to your sister Luo, when you were a child, it's not the same as now? You see, my brother has a body, is it the same as before? Liu Yi stretched out his hand and pulled Zhen Mi and said.

"No, it's different...... It's because people's bodies are different, I don't know why, why people's hearts beat so fast...... Ah...... Woo...... Brother, people are curious, well, the face is so hot......" (to be continued......)

PS: PS: This book may have too many words, and I feel a little tired when I write a small work, and I may feel disappointed when I write it during this time, and I can't write it well.

Well, actually, Xiaozuo has been preparing a new book recently, and it has been prepared for a long time, and it has been revised many times, but it is not satisfactory. It's still the same sentence.,The new book will come out as much as possible.,But,If you can't even pass this level yourself.,Don't send it.,If it's not good-looking, write it until it's good-looking, and then let it meet with the brothers.。

Anyway, please be patient with your friends, and if you can support it, please support this book first. Thank you!