Plain text (3) (3) ωωω.м text update speed is the most high

Why, why do you say I still don't understand?

Yan Ruyu, who has been smart since childhood, couldn't stand this, and said unconvinced: "Don't be too confident, as long as you say it, I can understand." ”

Renaud sounded funny, he was purely trying to tease Yan Ruyu, this girl's personality is good, it makes people feel close, not like Mo Yu them, too classical.

The first time I approached a classical beauty, I felt pretty good, and I enjoyed the gentleness of the classical beauty while sighing at the strength of the beauty of the earth. But after a long time, Renault found that the classical beauty was like a fake, which made him unable to feel the sense of reality.

Like dummies, like puppets, and even a bit like inflatable dolls, without flesh and blood, even the soul is short of catties and twos.

Gong Churui and Feng Moyu all had a hint of wildness, but after knowing their identities, they all became puppets.

"Cheng, if you want to hear it, I'll just say it, don't understand it, don't let me explain, a lot of things, it's too troublesome to explain, and I can't explain a word in a few days. Renault looked at Yan Ruyu and said with a smile.

"Okay, that's it, I'll listen. Yan Ruyu said angrily.

"Well, when it comes to flying, there are no more than three. The first is that the lift is greater than the gravity, the second is the air pressure difference, and the third is the suspension maglev. In addition to this, there is an older saying that a substance that is lighter than air, can fly. ”

Renault is pure-hearted, a mouth full of terms, these words, placed on the earth, can be understood at the junior high school level, and primary school students who have more knowledge can also understand a part, put it in Da Chu, not to mention Yan Ruyu, who is groping for the secret art alone, is also confused.

Sure enough, after listening to Renault's words, Yan Ruyu's whole person was not good, what are you talking about, I can't understand a word for Mao?

What are lift, gravity, air pressure, levitation, and air?

After admiring the Ten Breaths Beauty Circle Diagram, Renault continued: "Don't say that I bullied you, explain to you the simplest one, do you know what the air is?"

Yan Ruyu shook her head.

Renault stretched out his hand and pointed around: "Air, is a mixture of gases, existing in the atmosphere of the planet, pervasive, everywhere, every time we breathe, we will inhale part of the gas, absorb what we need, and exhale what we don't need." Do you understand?"

Yan Ruyu was even more confused, not only did she not understand, but she led to more questions, what is a mixed gas, what do we need, and what do we need......

knew that it would be like this, Renault didn't explain, when he used to guide Cui Qing, the Ninth Princess, Zhang Tan and others, Renault found this problem, and wanted to explain a question, which can lead to countless questions. This is a manifestation of an extreme lack of basic knowledge, and many things cannot be explained without completing basic education.

"If you don't understand, it doesn't matter if you don't understand, let's make something first, experience it while experimenting, see it with our eyes, and think with our hearts. You have pen and paper here, bring it. "The arrogant Miss Yan obediently took the pen and paper.

Renaud picked up the pen and painted, no need to think about it at all, in fact, this thing, he had thought about it many times in his mind, and when he saw Yan Ruyu's big kite, he suddenly thought, this thing that he originally thought was impossible, put it in the world of Da Chu, maybe it could be realized.

Half an hour later, a sketch of a biplane propeller was finished.

This kind of antique aircraft, you can see in the history books, the wings are two layers up and down, it looks clumsy, in actual flight, it is indeed very clumsy, slow speed, slower climbing, not flexible response, a lot of shortcomings.

Of course, there are also benefits, double-layer wings, which can increase the area of the wing, and the power, wing area, and lift are directly related. When the power is insufficient, increase the wing area, and it is easy to get more lift.

Renault couldn't make the engine, so the biplane was human, and no metal was needed except for the propeller and transmission parts, so as to reduce the weight of the aircraft as much as possible.

After the drawing, Renault marked the dimensions on the wings and fuselage.

"See, let your people make this thing, I'll have the rest of the parts made, the material has to be strong, and the lighter the better, you know?"

"Just like a kite?" Yan Ruyu is still very smart, as soon as Renault said that she understood, she really didn't make a kite, she tried all kinds of materials, and finally found that bamboo was the best.

"You can understand it this way, the force it is subjected to is much greater than that of a kite, and your kite should be a bamboo scaffold, which is not used on an airplane. Within ten days, if it can be done, send it to the temple of divine work. After Lenault finished speaking, he put down the pen and paper, walked out of the tent, and jumped on the back of the purple shadow, through the God of Wealth, he had already seen Huya and his party, looking for him everywhere.

Back at the Shengong Temple, Renault began to recruit people to work, propellers, pedals, transmission chains, gear structure groups, these toys, with previous experience, are still quite difficult to make, compared to the previous production of wind drums, the requirements are much higher.

That's all, or Renault continued to lower the requirements, barely completed, according to his original plan, at least three gears, after all, it is by manpower, there is only one gear, even if the pedaler pedals faster, the power provided is limited.

Facts have proved that the level of metal craftsmanship of Da Chu is too poor, not to mention the three-speed shifting, even the minimum requirements of Renault are extremely difficult to manufacture.

Yan Ruyu should have a group of good craftsmen, ten days later, two sets of double-layer wings were raised, Renault took a look, the quality was better than he imagined, the total weight of the two wings was only more than one hundred and fifty catties, which was lighter than he expected.

With Yan Ruyu's subordinates joining, the progress of the project is much faster, mistakes are inevitable, repeated many experiments, and after more than a month, the assembly is finally completed.

Looking at the biplane human-powered aircraft parked in the open space, Renault was quite satisfied, but now is not the time to be happy, whether this thing can go to the sky or not, we still have to conduct flight tests.

Dachu has limited conditions, and there is no need to consider any material strength tests, wind tunnel experiments, etc., just throw off your arms and do it.

Renault didn't expect it to fly as high or as fast as it could, as long as it could fly. It is said that the world's first airplane, when it flew for the first time, only flew a few dozen meters away, which was far worse than Yan Ruyu's big kite, not to mention a hot air balloon.

In fact, with Renault's current resources, it is possible to make a simple hot air balloon, but the problem is that Renault can't look at it, the simple hot air balloon is almost uncontrollable, it is something to eat depending on the sky, and it will run wherever the wind blows.

The chairs, wings, and fuselage are all made of materials selected by Yan Ruyu, which is a kind of wood called hollow wood, which has a very low density, but its strength is not bad, and its toughness is excellent.

The metal part is the steel smelted by Renault himself, when processing parts, hundreds of blacksmiths, under the command of Zhang Tan, worked day and night, and the final product, in Renault's view, the work difference is speechless, and it can only be said that it can barely be used, as for how long it can be used, it depends on how much face God gives.

There are multiple movable wings on the wings that control the upper and lower airflow, creating a pressure difference and increasing lift. At the same time, it can also control the ascent and descent of the aircraft, as well as the turning.

The landing gear of the aircraft is naturally fixed, and the tires are made of resin materials, many of the materials in Dachu are quite good, and the resin selected from hundreds of resins has excellent elasticity, and in Renault's view, it is better than rubber.

The brigade of men and horses slaughtered out of the Shengong Palace, pulled the first manpower biplane of Dachu, and slaughtered towards the military field of Yulin Military Academy outside the city, where the ground was relatively flat, and there was no need for Renault to build an airfield.

In fact, a biplane like this has very low requirements for the airport, and in an emergency, it can even make a forced landing in the rice field.

Such a big movement naturally attracted the attention of many people, and the political affairs hall sent people to check, Wei Wenchang was the first to arrive at the military field of the school, looking at the strange-shaped biplane, and was silent.

"Li Si come here, sit in this position, do you see the pedals under your feet? You have to press hard, don't worry, don't step on it now, wait for me to finish ......"

Test pilot Li Si, this is what Renault has long thought about, Li Si is a grandmaster, with a long pulse and great strength, Renault is not worried that he has no strength, but he is afraid that this guy will break the pedal and chain as soon as he uses his strength, and in order to make these things, Zhang Tan lost ten pounds.

"This is the joystick, when you want to fly up, pull back, don't pull too fast, come a little bit, when you land, push forward. When turning, to the left or right, don't rush, be slow, and don't forget your feet, the power of the plane comes from the pedals under your feet, the faster you pedal, the stronger the power. ”

The large school field of the Yulin Army is very large, and it can accommodate 200,000 cavalry exercises at the same time, with a length of more than five kilometers, not to mention biplanes, as long as the ground is flat enough, even if a large transport plane takes off and lands, it is no problem, and it is just used to train Li Si.

After half an hour of emergency training, Da Chu's first grandmaster-level test pilot completed the preliminary training, and then it was up to him to understand it. Renault is not worried about his safety, with his grandmaster's combat power, even if he falls from a height of tens of meters, he will not be able to hurt him in the slightest, Renault is even more worried about the plane not to be broken, for this plane, he is not less busy.

There is no way, there is nothing to do during this time, Yuxi wants to guard Liaodong and deter the ghost base, so there is no way to make a move, if he doesn't make a move, Renault will have no energy to absorb, and the few units of energy in his hand have been used as a backup, and he didn't dare to use it.

Radio is being miniaturized, and it is enough to hand over this matter to Cui Qing and Zhang Tan, and he is not needed for the time being, and in more than a month, Renault has been concentrating on building airplanes. Renault was eager to see if he could build an air force in Dachu.

According to his tests and calculations, the Ninth Rank Martial Artist is enough to bear the heavy responsibility of a manpower engine, and if he does not pursue speed and durability, the Seventh Rank Martial Artist can barely do it.

For martial artists above the seventh rank, the number of Great Chu is still considerable.

33 м.(3)(3)óм worthy of book friends