Daming 1805

Chapter 20 The Misunderstanding

Chapter 20 The Misunderstanding

Zhu Jingyuan, who knew what to do, looked at Zou Bingtai with a relaxed mood, and talked about his views on flying machines:
"I don't think the flapping wing plane needs to be considered for the time being, and the structural strength and control issues it requires are definitely not something that can be solved in a few decades.

"And with that kind of material and control technology, we're able to make a stronger fixed-wing aircraft, which is my idea for a fixed-wing aircraft."

Zhu Jingyuan's words were a little direct, but as soon as he spoke, the two officials of the Ministry of Industry frowned.

Obviously, the three design directions of flying machines may be supported by different designers, and there may be some disputes between them.

The two officials waited patiently for Zhu Jingyuan to finish speaking, and one of them, a relatively stout male official about 30 years old, couldn't help but speak:

"His Royal Highness Jingyuan, there may be various problems with the flapper, but we can still believe that it can really fly, after all, this is how insects and birds fly.

"Gyrocopter also has a relatively feasible direction, and its design difficulty and size are between fixed-wing and flapping-wing, and it is likely to be the first practical flying machine.

"As for fixed-wing aircraft, craftsmen from the Ordnance Department and the civilian population have tested hundreds of wing types, all of which are regarded as unable to solve the lift and control problems at the same time.

"Many of our colleagues believe that a fixed-wing aircraft is at best a further glider that can glide, after all, birds can't climb high with their wings outstretched.

"Although the existing materials can't make the flapping plane fly, but the fixed-wing plane that can carry people to take off, the huge wings are completely uncontrollable."

As soon as he spoke, Zou Bingtai, Minister of Industry, turned his face subconsciously and winked at the official, implying that he should not speak so directly.

Due to the continuous guidance of Emperor Shizu for nearly a hundred years, the great artisans in Daming are somewhat honest and upright, and they are very serious about their research routes.

So the final result is that the hint of the Minister of Industry did not have the effect of the gods, and the official still finished the words in one breath.

Zou Bingtai could only take the initiative to explain to Zhu Jingyuan immediately after the other party finished speaking.

It is said that there are many officials from craftsmen here, and most of them have upright personalities. I also ask Your Highness to bear with me.

It may be that they are worried that Zhu Jingyuan and his son have grudges, which will affect the official's future career, so they deliberately did not mention the other party's name.

Although Zhu Jingyuan was taken aback, he was not angry at all. It was definitely a good thing that researchers and engineering officials could have such a persistent attitude.

So Zhu Jingyuan smiled directly and said very frankly and generously:
"Technical disputes are normal, and researchers should convince people with reason and not be afraid to pursue the truth because of their status.

"Since this great worker has said his own ideas, I also come up with my own design to determine whether it is feasible through actual verification.

"Da Sikong, can you give me a pen and paper ruler? My ideas need to be drawn in order to be more intuitive."

Of course, Zou Bingtai would not refuse, but he just turned around to speak, and the middle-aged official who refuted Zhu Jingyuan just now got up and went to get the drawing tools.

After returning, he handed his hands to Zhu Jingyuan, and at the same time introduced himself very seriously and said:
"Li Rui, the director of the Armaments Department of the Lower Ministry of Industry, very much recognizes His Highness's attitude and reasoning about the pursuit of truth.

"I am also amazed at His Highness's idea of ​​the shield car, which coincides with everyone's final design.

"But it doesn't mean that I approve of His Highness's thoughts on the flying machine, and I also ask His Highness to give me some advice."

Zhu Jingyuan was taken aback when he heard this. It turned out that this upright official was in charge of the design of the shield car.

Zou Bingtai helped him disguise his identity, but he reported his own family.

And what he said was to teach him, in fact, he was doubting himself. This may be the most polite thing the other party can think of.

Zhu Jingyuan recovered from his astonishment, but responded with a very happy smile:
"After all, I am a step too late, and I am not a professional craftsman, I only have ideas, and the specific design cannot be completed by myself.

"As for giving advice, I don't dare to do it, but communication is a solid wish.

"I will first draw the frame of the aircraft design and explain my design ideas to everyone."

Under the watchful eyes of a group of engineering officials, Zhu Jingyuan quickly drew a simple outline of an aircraft, probably referring to the Swordfish attack aircraft of later generations.

Then on the side of the aircraft, several typical wing profiles were drawn, and at the same time, I started my own design interpretation:
"In the design of the flying machine, everyone instinctively referred to birds, including the structure of the wings, and of course the wings of birds were used as a reference.

"So the wing designs that everyone got are relatively thin as a whole, with a generally arc-shaped cross-section, and a side view close to the shape of a rib.

"I have seen a lot of wing designs in the newspapers, and although they seem to be very different, they are nothing more than reference to different bird wing curvatures.

"Qi Gong must have verified that even if a fixed-wing aircraft using this type of wings flies, it can only be regarded as gliding at a slightly farther distance.

"It just so happens that the shape of the wings of different birds can indeed lead to subtle differences in lift, which makes everyone more deeply involved.

"But when birds take off and rise, they mainly rely on flapping movements. When birds are gliding, the lift provided by the wings is very limited.

"So I think that to get higher lift, you should abandon the typical bird wing profile and consider it entirely from the mechanics.

"The lift obtained by a fixed wing should be caused by the difference in air velocity above and below the wing, and it is the flowing air that holds the wing up.

"So, I think a more reasonable wing structure should not be a curved sheet like a bird's wing, which is like a cut tube.

"It should be that the upper surface is curved upward, the lower surface is generally flat, the front end is round, and the back end is thin, and the overall thickness is certain, too thin to form a sufficient flow rate difference.

"From the side view, it should look like a half-split water droplet. Qi Gong can try the effect of this wing."

After Zhu Jingyuan finished speaking, there was silence around him, not because he didn't believe it, but because he couldn't judge at all.

Zhu Jingyuan's suggestion is completely out of the original framework, and no one has ever tried it.

In the past, as Zhu Jingyuan said, although many wing profiles were tested, they were only based on different bird wings and could only be regarded as the same type.

The direction proposed by Zhu Jingyuan has neither been tested in practice, nor has sufficient mature theory to assist judgment, and no one dared to rashly oppose or support it.

Although most of the craftsmen are upright, they are not stupid and rashly oppose a new idea.

It is even more impossible to firmly believe that a certain idea will not work at the groping stage, and will not firmly oppose a certain person.

After a few seconds of silence, Li Rui was the first to speak:

"I will test the effect as soon as possible, and please continue to explain the control problem, and how to solve it in your opinion."

Zhu Jingyuan nodded lightly and continued to draw on the paper:
"Because of the existence and ubiquity of bicycles, the designers of airplanes took for granted the same controls.

"Having the pilot move his body, having the body adjust the center of gravity of the wings to keep the plane balanced, is simply not realistic.

"The human body is much heavier and larger than the bicycle. The left and right movement of the body is similar to the lever's long lever arm to pry the short lever arm to the center of the bicycle, which of course saves effort.

"The fixed wing is the exact opposite, the aircraft is heavier than the human body, and the wings are extended outwards, with the human body at the center.

"Using the center of gravity of the human body to adjust the wing attitude is to use the short lever arm to pry the long lever arm, which is very laborious and the adjustment ability is very limited.

"Unless the aircraft is very light, as light as a bicycle, it's hard to be practical.

"My idea is to refer to the rudder, and set up a movable auxiliary wing similar to the rudder in the front or the rear of the aircraft.

"Controlled by wire and pulley link, hand-pulled or foot-pedaled.

"Perpendicular to the auxiliary surface of the wing, swinging left and right can adjust the flight direction.

"Parallel to the auxiliary surfaces of the wings, the flight height can be adjusted by swinging up and down.

"The specific effect should be easier to use than the human center of gravity, and Qi Gong can try it together with the wing design.

"Also, the shape of the wing of the rotorcraft, as well as the control of the direction of flight, can also use these designs.

"I think there will be good uses for rotorcraft in the not too distant future."

Zhu Jingyuan finally finished speaking, but this time the audience's reaction was similar to that before, and they were all doing simulation analysis and judgment in their hearts.

The theory of the rudder sounds very reliable, but the key is whether it can fly first, otherwise the control method is meaningless at all.

(End of this chapter)

Tap the screen to use advanced tools Tip: You can use left and right keyboard keys to browse between chapters.

You'll Also Like