Zhu Jingyuan, who knew what to expect, looked at Zou Bingtai in a relaxed mood and talked about his views on flying machines:

"I don't think the wing-swinging ornithopter needs to be considered for the time being, and the structural strength and control problems it needs are definitely not something that can be solved in a few decades.

"And with that kind of material and control technology, we can make stronger fixed-wing aircraft, and my idea is fixed-wing aircraft."

Zhu Jingyuan's words were a little direct, but as soon as he opened his mouth, the officials of the two ministries frowned.

Obviously, the three design directions of the flying machine 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 male official who was about thirty years old and had a relatively thick body, couldn't help but speak:

"Your Highness Jingyuan, there may be all kinds of problems with the ornithopter, but we can still believe that it can really fly, after all, that's how insects and birds fly.

"Gyroplanes also have relatively feasible directions, and the design difficulty and size are between fixed-wing and flapping wings, and it is likely to be the first practical flying machine.

"As for fixed-wing aircraft, the Ordnance Division and civilian craftsmen have tested hundreds of wing types, all of which are considered unable to solve the problem of lift and control at the same time.

"Many of our colleagues agree that a fixed-wing aircraft is at most a glider that can glide farther, after all, birds can't climb altitude even if they have their wings straightened.

"Although the existing materials cannot make the ornithopter fly, the huge wings of the fixed-wing aircraft that can take off with people are completely uncontrollable."

As soon as he opened his mouth, Zou Bingtai, the secretary of the Ministry of Industry, subconsciously turned his face and winked at the official, suggesting that he should not speak so directly.

Due to the guidance of Emperor Shizu for nearly a hundred years, the great craftsmen of the Ming Dynasty are more or less a little upright and serious about their own research routes.

So the final result was that the hint of the Ministry of Industry Shangshu did not have the effect of appearing gods, and the official still finished his words in one breath.

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

said that there are many officials from the craftsmen here, and most of them are upright, and I ask Your Highness to bear with Yunyun.

may be worried that Zhu Jingyuan's father and son have a bad heart and affect the future career of this official, so they deliberately did not mention the other party's name.

Although Zhu Jingyuan was taken aback, he was completely lifeless, and it was definitely a good thing that the researchers and engineering officials could have such a persistent attitude.

So Zhu Jingyuan smiled directly, and said very frankly and generously:

"It's normal for technical disputes to occur, and researchers should convince people with reason, and not be afraid to pursue the truth because of their status.

"Since the master worker has expressed his own ideas, I have also come up with my own design and verified it to determine whether it is feasible.

"Da Sikong, can you give me a pen and paper, my ideas need to be drawn to be more intuitive."

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

After coming back, he handed Zhu Jingyuan with both hands, and at the same time introduced himself very seriously and said:

Li Rui, director of the Ordnance Department of the Ministry of Lower Works, very much agrees with His Royal Highness's attitude and reasoning on the pursuit of truth.

He was also amazed that His Highness's idea of the shield car coincided with everyone's final design.

"But this does not mean that I approve of His Highness's thinking on flying machines, and I ask Your Highness to give me advice."

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

Zou Bingtai helped him hide his identity, but he reported himself to his home.

And when he says it's teaching, he is actually questioning himself, which may be the most polite thing the other party can think of.

Zhu Jingyuan came back to his senses from his astonishment, but responded with a very happy smile:

"I'm a step too late after all, and I'm not a professional craftsman, I only have ideas, and I can't do the specific design by myself.

"As for teaching, I don't dare to do it, but communication is a real wish.

"I'll first draw the framework of the aircraft design and explain my design ideas to everyone."

Under the gaze of Zhu Jingyuan and a group of engineering officials, he quickly drew a simple outline of an airplane, probably referring to the later Swordfish attack aircraft.

Then, on the side of the aircraft, several typical wing profiles were drawn, while at the same time starting their own design interpretation:

"In the design of the flying machine, everyone instinctively refers to the birds, including the structure of the wings, and naturally uses the wings of birds as a reference.

"So the wing design that you get is relatively thin overall, with a roughly curved profile, and the side view is close to the shape of a rib.

"I've seen a lot of wing designs in the newspapers, and although they seem to be very different from each other, they are essentially nothing more than references to the curvature of different bird wings.

"Qi Gong must have verified that even if a fixed-wing aircraft using this kind of wing 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 the action of flapping their wings, and when birds glide, the lift provided by their wings is very limited.

"So I think that if you want to get higher lift, you should get rid of the typical bird wing profile and think completely about mechanics.

"The lift gained by a fixed wing should be caused by the difference in air velocity between the upper and lower wings, and it is the flowing air flow that holds the wings up.

"So, I think a more reasonable wing structure shouldn't be a curved sheet like a bird's wing, which looks like a cut tube.

"It should be that the upper surface is curved upward, the lower surface is generally flat, the front end is rounded, the rear end is thin, and the whole has a certain thickness, which is too thin to form a sufficient flow rate difference.

"The side view should look like a cut half of a droplet, and Qi Gong can try this wing effect."

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

Zhu Jingyuan's suggestion is a completely out-of-the-box idea that everyone has never tried.

In the past, it was indeed like what Zhu Jingyuan said, although a lot of wing profiles were tested, but they were only based on different bird wings, which could only be regarded as the same category.

The direction proposed by Zhu Jingyuan has not been tested in practice, nor has it been judged by a sufficiently mature theory, so everyone does not dare to rashly oppose or support it.

Although most of the craftsmen are upright, they will not be foolish and rash to oppose a new idea.

It is even more impossible to firmly believe that a certain idea will definitely not work in the groping stage, and it will not be firmly opposed to someone.

After the scene was quiet for a few seconds, it was Li Rui who spoke first:

"I will test the effect as soon as possible, and I also ask Your Highness to continue to explain the control problem, and how Your Highness thinks it should be solved."

Zhu Jingyuan nodded lightly and continued to draw on the paper:

"Because of the existence and popularity of bicycles, it is only natural that the designers of airplanes have adopted the same control methods.

"Asking the pilot to move his body and let his body adjust the center of gravity of the wings to keep the plane balanced, but that's simply not realistic.

"The human body is much heavier and larger than that of a bicycle, and the left and right movement of the body is similar to a lever long arm prying a short arm for the center of the bicycle, which is of course labor-saving.

"The fixed-wing is the other way around, the airplane is larger than the human body, and the wings are extended outwards with the human body in the center.

"Using the center of gravity of the human body to move to adjust the attitude of the wings is to use a short force arm to pry a long force arm, which is very laborious and has a very limited adjustment ability.

"Unless the aircraft is very light, light enough to be on a bicycle, it's hard to really work.

"My idea was to set up a rudder-like movable auxiliary wing in front of or at the tail of the aircraft, following the rudder.

"It is connected by wire and pulley, and can be controlled by hand or foot.

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

"Parallel to the auxiliary surface of the wing, the flight altitude can be adjusted by swinging up and down.

"The specific effect should be better than the center of gravity of the human body, and Qigong can try it together with the wing design.

In addition, these designs can also be used for the shape of the wing of the gyroplane, as well as the control of the direction of flight.

"I think gyroplanes will also have a good use in the near future."

Zhu Jingyuan finally finished speaking, but this time the audience's reaction was similar to just now, they were all completely bottomless in their hearts to do simulation analysis and judgment.

The theory of the rudder sounds sounding sound, but the key is whether it can fly first, otherwise the control method makes no sense at all.