Ask Sword

chug chug——

The propellers wrapped in the Breeze Talisman rotated at an accelerated speed, generating wind force, which drove the aircraft model to fly obliquely into the sky.

Li Ang raised his palm, released his mind power, and connected it to the fine gold wire on the model airplane.

The fine gold wire tightens and contracts under the action of thoughts, causing the flaps and ailerons of the upper and lower wings to expand, increasing the area and increasing the overall lift, and it flies up and down in the air, circling round after round.

Actually, really, flew up

The freshmen who had shown their sword weapons before all raised their heads and opened their mouths, looking at the flexible wood and silk cloth airplane model in the sky in amazement.

Even Yang Yu and Li Wei couldn't believe it, put their palms in front of their foreheads to block the sun, and stared blankly.

Next comes the turn.

Li Ang hung his palm lightly, and the fine gold wire responded immediately, adjusting the direction of the wings, driving the model plane to turn slowly, and drawing a perfect arc in midair.

sprint acceleration,

slow down,

Li Ang only needs to adjust the four fine gold wires to tighten or relax, and he can easily control the flying speed and direction of the entire aircraft model.

"There is a saying in "Mozi·Lu Wen": Gongshuzi cuts bamboo and wood into kites, and when they are formed, they fly for three days."

A new student whispered something, Xi Yangyu glanced at him, and said calmly: "In essence, the wind talisman is used to drive the blades to rotate to generate wind force, and when the spiritual power of the talisman dissipates, it will naturally fall.

What's more, it all depends on a few fine gold wires to act as the sword soul and control the direction.

There is no need to hit it with a flying sword, as long as the mental power of the hidden state interferes with the connection with the sword soul, it can crash.

Nice idea, but probably not practical. "

"Xi Siye can try."

Li Ang turned to look at Xi Yangyu, and said with a smile, "This 'Flying Sword' should not be afraid of interference."

"."

Xi Yangyu glanced at Li Ang coldly, in front of His Majesty the Queen and other Dr. Si Ye, he would not really release the disturbance of his mind to control the 'Flying Sword'.

Seeing that Xi Yangyu didn't take the bait, Li Ang curled his lips with some regret, and even took the initiative to put down his hands and cut off the connection with the fine gold thread.

The model airplane that was circling in mid-air lost its guidance, the nose of the plane rose, and the wings fell to one side beyond a critical angle. The overall lift force dropped rapidly, stalled suddenly, and fell downward in a circle.

Many freshmen looking up from below subconsciously exclaimed,

Tantai Leshan, Secretary of Fu Xue, raised his palm, ready to release the talisman to rescue this strange and interesting 'flying sword'.

However, in the next second, the tail rudder of the aircraft model, which had lost its mind control, automatically deflected with the airflow,

As a result, the aircraft model loses the directional stability torque, causing the aircraft to slide inward in the direction of the falling spiral, and the upper and lower wings automatically return to normal under the action of the torque.

At the same time, due to the enlarged area of ​​the horizontal tail, it is subjected to greater air flow pressure, which makes the model aircraft automatically tilt forward, press down the nose, accelerate downward and dive out of the stall.

Li Ang took a few steps back, looked at the direction of the model airplane, raised his palm, and caught the model airplane lightly and precisely.

This is the strength of the Bo-2 aircraft—it has a simple structure and an exquisite design. Although the speed is slow and the flying height is limited, it is superior in its maneuverability.

Once stalled, the pilot only needs to lower the control stick, and the aircraft will automatically break out of the stalled spiral state.

Therefore, in Li Ang's memory of another world,

The wave 2 aircraft will be used as a trainer aircraft, liaison aircraft, ambulance aircraft, night bomber, and scrambler aircraft for novice pilots in the war. It is the second most produced aircraft in history.

tear up.

With some pity, Li Ang tore off the Breeze Talisman whose spiritual power was gradually dissipating, and looked up at the silent Emperor Yu.

"Leon."

Emperor Yu thought for a moment and asked, "How big can your flying sword be?"

coming.

Li Ang smiled slightly. Emperor Yu Li Shun was a disciple of the head of the mountain, and he had studied in the academy when he was still a prince. Although he is not a powerful monk, it can be roughly seen that,

The power source of the model airplane is the talisman paper, not the power of thought commonly used by Feijian.

What is the biggest feature of talisman paper?

It can be stored, can be released at any time, and can be used by mortals.

What Emperor Yu and his ministers were thinking about was,

If the aircraft model is enlarged, can it carry people? Is it possible to ship goods? Could it be manipulated by mortals, cross dangerous terrains, and even travel thousands of miles in one day?

"Your Majesty, it's hard for me to say."

Li Ang cupped his hands, and as expected, he saw wonderful expressions on the faces of the Empress Yu, important ministers, and Dr. Si Ye, "The disciple is just feeling the atmosphere.

The written talisman, the power of the talisman weakened, and the duration was not long.

In order for Feijian to fly, it can only be so big.

If it is replaced by the talismans written by the talisman masters of Xunyunjing and Zhuxiaojing, the power will naturally increase greatly, and the flying sword can also be enlarged.

But other factors must be considered.

The so-called pull a hair to move the whole body,

To enlarge the volume, reinforcement materials are required,

Reinforcement material will result in increased weight,

Increased weight slows down speed

The actual operation needs to be further studied.

But one thing is certain, this model can carry people after it is enlarged.

Even, it can carry ordinary people. "

As soon as this remark came out, everyone including Xi Yangyu changed their faces again, especially those generals - they came to the academy today to accompany His Majesty on vacation,

At this moment, when I heard the news that the model airplane can carry people, I immediately began to think about it.

Can carry people?

How many people can it carry, where can it go the farthest, how much cargo can it transport, and whether it can shorten the supply line for foreign expeditions?

Soldiers and horses go first without using food and grass, and logistics is always the first element in determining the outcome of a war.

The 'Flying Sword' only used cheap materials such as wood and silk cloth, even if it was all replaced with steel, it was still within the acceptable range.

However, Tantai Leshan, who has a Ph.D. in Engineering and Tactics, thinks differently.

symbol.

The power source of the 'Flying Sword' in Li Ang's hand is the talisman. Although the 'Flying Sword' is simple in shape, as long as it is covered with iron and replaced with a better wind talisman, it can be transformed into a real flying sword that can travel at high speed.

More importantly, it can load, and it is very cheap.

If you store more than a dozen offensive talisman papers in it, and control multiple flying swords to smash at the opponent, the talisman master can defeat the enemy three hundred feet away, and you don't have to worry about your own damage at all——

The sword master can't paste the powerful talisman paper on the flying sword, because the flying sword is damaged and the sword soul is damaged, which will also cause mental damage to the sword master.

The wooden model in Li Ang's hands does not have this shortcoming at all, and can be used as a powerful weapon for one-time use.

This is an invention that can change the battle pattern of monks, and even the form of war among countries in the world.

Tantai Leshan made a judgment in an instant, and subconsciously wanted Li Ang to put away the flying sword, but the next second he looked around the crowd, and immediately realized that there were too many important people present, and it was impossible to keep it secret.

"call"

Tantai Leshan exhaled heavily, shook his head helplessly, out of the corner of his eye, he caught a glimpse of Su Feng, Ph.D. of Science, who had heard the movement and got into the crowd.

"His Majesty."

Su Feng's gaze was attracted by the model airplane in Li Ang's hands, and he reluctantly bowed to Emperor Yu, then hurriedly asked Li Ang, "Ri Sheng, why is the upper wing of this sword designed to be flat instead of flat?"

"Dr. Su Feng, I call this part the wing. The wing is designed in a streamlined and flat shape, which is conducive to reducing wind resistance and increasing lift."

"Wind resistance, wind resistance?"

Su Feng instantly understood the meaning of this word, and immediately asked, "Is it the same principle as the shuttle-shaped bottom of a boat?"

"That's right, most of the boat bottoms in the world are shuttle-shaped, and there are few square ones—because the square bottom will resist the water flow, making the hull difficult to maneuver. The principle of wind resistance is roughly similar."

Li Ang and Su Feng discussed and found that the latter already had an experience-based understanding of concepts such as velocity, acceleration, force, air pressure, pressure, gas density, viscous fluid, flow field, and vortex, and his thinking was quite quick. .

The rest of the people waited and soon couldn't understand the conversation between the two,

When Emperor Yu had to interrupt, Su Feng's eyes were still shining, talking to himself such words as "ship propeller blade", "flowing boundary layer", "wind tunnel".

"Okay, there are still students waiting."

Emperor Yu turned his head to look at the forging workshop. The remaining freshmen in the workshop had already prepared their swords, but against the backdrop of Li Ang, they all looked so monotonous.

A group of He Fanshuang, Ji Linglang, Qiu Feng, Li Leling and others forged the flying sword, although the quality of that flying sword was not inferior to Pei Jing's Canghai Sword.

The supervisory course came to an end, and just after class, Li Ang, Doctor of Science Su Feng, Doctor of Engineering Tantai Leshan and others were invited by the palace servants to ask about politics.

What Emperor Yu asked was naturally about the aircraft. He hoped that the Academy could do more research, and the consumption cost would be borne by the court of Yu Kingdom.

Li Ang pushed this matter to Su Feng and Tantai Leshan without hesitation. A real plane needs a more powerful engine and a more reasonable layout.

This research consumes too much time and energy, which will seriously slow down Li Ang's own practice progress.

On the other hand, Li Ang also wants to see what kind of sparks can be created by combining the way of talisman with aerodynamics.

‘In the three hundred years since the school was established, countless bright minds have been born. It's just that most of their energy is used to walk the path of talisman, art, sword, thought, and body.

In other words, the academy lights up another technology tree. '

Li Ang thought silently: "The starting point of the technology tree is different, which will lead to great differences in scientific and technological achievements.

It's as if in the memory of another world, human civilization finally chose electricity instead of steam power. "

Maybe, the doctors in the Academy can research something new.

At the end of the political inquiry, Emperor Yu wanted to reward Li Ang with something. After much deliberation, he rewarded him with gold and silver in a very vulgar way—there is no other way if he does not reward money.

Li Ang's age decides that it's inappropriate to award titles now,

And posthumous gifts to Li Ang's parents are too conspicuous.

Mu Xiuyu will be destroyed by Lin Feng, and the matter between Jun Qianzi and the Southern Zhou assassin has not yet been resolved.

As for the gift of marriage, seeing Emperor Yu's expression, he might have thought about it, but he still didn't say it this time.

The noble daughter of the Li family's clan was really given a marriage. It's hard to say whether it's a marriage or an enmity.

Su Feng, Tantai Leshan and others respectfully sent Emperor Yu away, and Li Ang also returned home after finishing the afternoon class.

Today it can be said that it was Qin Shihuang who touched the wires - winning (ying) numb.

Not only did Xi Yangyu almost fail to get off stage,

I also set up a personal setting for myself. In the future, I can naturally take out the self-explosive plane with the talisman paper as a long-range attack method, so that the enemy cannot get close.

If you don't get touched by others, you will naturally not reveal the fact that you own Mosi.

In addition, he got 500 credits and a gold and silver reward worth 5,000 guan, as well as the patent right of the aircraft.

500 credits are already a lot, and if you save another 100 credits, you can exchange them for precious metals such as mountain copper and black iron.

I don't know what kind of changes will appear after Mosi devours it.