Chapter 863

The fire moon is coming, and the giant sun is volleying into the sky.

Even in this country located in the northern part of the mainland, some areas have begun to have a "hot summer" feeling.

Gao Wen turned the document in front of him to the last page, the charts and data on the document slowly settled in his mind, after thinking for a few seconds, he raised his head and looked at Rebecca and Maggie in front of him: "So Have the last few attempts to push the 'missile limit' failed?"

"...Yes, they all failed," Rebecca said with her head lowered, especially frustrated, "Whether it's increasing the thrust of the drive array or changing the layout of the wind field, all methods are useless. I have sorted out the detailed records, the ones you just saw."

"Well... I saw it," Gawain frowned, and glanced at the stack of documents that he had put on the table. A long-lost sense of unknown and contradiction was seeping between the lines of the document, stirring His high-speed mind, "And all the tests encountered similar problems in the final stage of acceleration... The magic field that maintained the acceleration was suddenly greatly disturbed, the output plummeted, and the aircraft slowed down..."

"It felt like I suddenly crashed into a chaotic but extraordinarily powerful 'magic quagmire'," Maggie, who performed most of the test flight missions herself, immediately reported her feelings at the time, "No matter how much she maintained before. If you exert effort, you will be quickly disintegrated by the quagmire, and the speed will not be able to go up.”

Gawain fell silent for a while, thinking in silence.

Missile limit, the speed limit that all physical flying objects will face. After approaching this limit, the flying object will be captured by an invisible but powerful "quagmire". If it is a magic-driven flying device, it will be manifested as a magic force to maintain thrust The field was disintegrated. If it was birds and beasts in nature that did not rely on magic to fly... Although the reason was unclear, they could not break through this "barrier" without exception.

This is a very familiar phenomenon, so familiar that Gawain couldn't help but think of the difficulty that high-speed aircraft on Earth once faced: the sound barrier, however...

He sighed softly, raised his head, and said as if to himself: "The currently known speed of sound in the atmosphere is..."

"According to the data measured by scholars in the north, the speed of sound in the atmosphere near sea level and around freezing temperature is 322 meters per second." Rebecca said immediately.

The north was the magic holy land of Ansu in the past. Due to the influence of the Wilder family, a large number of excellent mages and scholars were concentrated in that cold place. In order to explore the mysteries of various magic phenomena, even the mages of the old era also They will do a series of studies on nature, so concepts such as the speed of sound in the atmosphere, air pressure, and the melting and boiling points of various substances have always existed among the upper-level intellectuals, and the data are still very accurate.

now,

One of these precise numbers... was stirring Gawain's nerves like a nasty little devil.

In this world, the atmospheric speed of sound at standard atmospheric pressure and freezing temperature is 322 meters per second—two-thirds of the missile's limit.

The speed barrier that Rebecca's aircraft encountered was not a sound barrier, but something else completely unknown.

In fact, the "sound barrier" that has plagued scientists on Earth for a long time is not a big problem in this world at all, and it has even been solved unknowingly - although the existing "Dragoon" aircraft still It cannot exceed the speed of sound, but some accelerated flight devices created by Rebecca in the laboratory environment have successfully broken through this barrier several times.

Laboratory data show that the wind-based force field spells derived from elves can almost perfectly solve a series of problems caused by atmospheric drag - although the "dragon cavalry" and some other flying machines have no concept of aerodynamics in Gawain's eyes. , but those parts of the aircraft that are visible to the naked eye are not at all their real "aerodynamic shell" during flight. What really deals with the atmospheric environment is a layer of force field surrounding the aircraft, and that layer of force field has perfect aerodynamics It can even resolve the shock wave and other problems faced by supersonic flight. Coupled with the powerful force brought by the Dragon language propulsion array, the aircraft in this world can break through the sound barrier far easier than Gawain once imagined.

Of course, this does not mean that the technology of breaking the sound barrier itself is rudimentary - the wind element force field spells of elves have a history of thousands of years, and they have also experienced a long and arduous research and development process. The system performed unexpected functions, but the technology itself did not fall from the sky.

In any case, the speed of sound is not the real difficulty that stands in the way of Cecil's aircraft technology. The real difficulty... is that after breaking the speed of sound, it is the mysterious missile limit, or in the elf's parlance, it is called the "physical flight speed barrier".

And Gawain knew nothing about it.

He can only judge from intuition and existing experimental phenomena that the speed barrier has a great probability and has nothing to do with factors such as air resistance, air shock, etc. It may involve some characteristics of the magical environment of this world, and may even involve some more fundamental question.

"At present, the tests we have done in the Origin Lab have been seriously deviated from the experimental results in the real world," Rebecca said boldly when Gawain didn't speak for a long time, "In short... ...the limits of real-world missiles are beyond what Origin Labs can 'understand'. So I'm going to focus my next experiments on high-speed vehicles on the real world."

"Correct judgment," Gao Wen nodded lightly, "Then do you have any ideas for the next step?"

Rebecca looked at Maggie next to her, and then glanced at Gawain cautiously. After obvious hesitation, she took a bold step forward: "I want to try using cannonballs to test this speed limit..."

Gawain raised his eyebrows: "Cannonball?"

"It's not a real cannonball, but the principle is similar," Rebecca waved her hand, "Now all our tests are to put the propulsion device on the aircraft, and then the results are also obvious, when the speed approaches the limit of the missile, those The propulsion unit is nearly dead, so I'm going to change my mind and use a fixed propulsion unit to launch an unpowered entity and see what happens...

"In this way, the propulsion device itself does not involve the speed limit, and theoretically it will not be affected by the 'magic quagmire', it should continue to work until the end, accelerating the flying entity to the limit that the device can withstand.

"Of course, there are also many birds and beasts that do not possess magic power in nature, and their speed cannot exceed the limit of missiles, but I think this is only because their flesh and blood has a limit - if a sturdy cannonball is made of steel, the situation It will definitely be different."

Gawain's slightly wrinkled brows gradually loosened as Rebecca spoke. He listened to the other party's thoughts with great interest: "Then what are you going to do?"

"I want to build a bigger acceleration track, with more, more powerful repulsion devices, with more powerful overloads, and if necessary, this track can even be a one-off - I want to use it Let's fire a cannonball that doesn't carry any magical effects other than the wind rune, and I want to see if it can break through the limits of missiles."

Gao Wen rubbed his chin with his fingers, and began to help Rebecca to improve his thoughts: "Then have you considered that the wind rune on the cannonball will also be affected when approaching the limit of the missile, causing the magic quagmire to 'trapped' the cannonball? "

"So the acceleration track must be long, and the rune power must be large. Even if the wind rune on the cannonball disintegrates, the acceleration track must continue to push the cannonball forward," Rebecca said immediately. Build a vacuum pipe to house the entire device, so that you can simply remove the wind rune and simplify the shell into a lump of iron, plus a vacuum environment, maybe you can get a better acceleration effect..."

Unsurprisingly, this iron-headed girl threw out a very powerful idea of ​​miracles.

But Gawain has to admit that Rebecca's idea of ​​"making miracles with great effort" is indeed very reasonable, and it is the best idea at this stage. Even if he makes some suggestions and optimizations, he can only do it in this way of thinking. Just some tinkering.

However, after a brief thought, he still seemed to casually mention: "There is only one problem, the cost of doing this is probably not low, have you told Hetty?"

"Not yet," Rebecca immediately touched her head, her voice was 20% smaller, "Such a large set of acceleration orbits, coupled with supporting energy supply, observation, and safety facilities, and may have to build a vacuum shell. , after the cost is calculated, the aunt will chase and beat you in all likelihood... that's why I came to you first, thinking..."

Her voice was getting smaller and smaller, and in the end it was just a whisper of a person.

Looking at the uneasy Rebecca who was exposed to the conspiracy in front of him, Gawain suddenly couldn't help laughing. Under the surprised eyes of the other party, he nodded: "I have approved this project, franchise."

"Really...really?" Rebecca stared at her as if she still couldn't believe it, "Do you allow that?"

"This project is very important, and the results produced in the later stage may exceed everyone's expectations. I think it is necessary to increase investment," Gao Wen said with a smile, "but I also have some suggestions. We can ignore the vacuum shell first. By optimizing the shape of the 'cannonball' itself, we..."

A gust of invisible wind suddenly blew into the study, and a familiar breath appeared beside the desk. Gawain immediately stopped and looked at the seemingly empty side: "What's wrong? Come here in such a hurry."

Seeing Gawain's reaction, Rebecca and Maggie had already guessed who was coming, and Amber's figure appeared in the air at the next moment. The latter simply nodded to Rebecca and the two, and stood beside Gawain's ear. He leaned down and reported a few words in a low voice.

Rebecca saw that her ancestor, who was always majestic and reliable, had a visibly stiff expression in the next few seconds.

The next second, Gawain stood up suddenly, with a solemn and frightening expression.

"Rebecca, I have approved the project, you can start preparing your accelerator," Gawain said quickly, and looked at Maggie beside him, "Maggie, I need your help."

Maggie immediately lowered her head: "Of course, you can tell me."

"We are going to the Plains of the Holy Spirit at once, Solimburg."

Rebecca faintly sensed something from Gawain's attitude, and immediately asked, "Lord Ancestor, what happened?!"

Gawain glanced at Rebecca quietly, took a slow breath, and then slowly exhaled.

"Norris is critically ill," he said slowly.

"Norris?" Rebecca's eyes widened instantly. At first, she didn't seem to understand the meaning of the ancestor's words, but it took two seconds for her to react, and she took a step forward subconsciously, "I want to... "

Gawain looked at Rebecca, at the stubbornness that suddenly appeared in the eyes of the other party—this child usually has some problems with her personality, but she rarely showed such stubbornness when facing Gawain or Hetty. Attitude.

He recalled that Norris was from old Cecil, one of the 800 people that Rebecca desperately rescued.

Norris, who was a farmer, can eventually become the Minister of Agriculture of the Empire, which is also inseparable from the recommendations of Hettie and Rebecca.

After a moment of silence, Gawain nodded: "Yes."

Rebecca showed a visibly relieved expression, and immediately smiled and thanked her ancestors, but soon her smile disappeared again, and a sad and worried expression spread on her face.

Gawain's brows gradually wrinkled. He recalled the news from Solimburg recently, thinking about some things mentioned by the other party in the last call with Bertila, and gradually fell into contemplation.

After a while, he nodded slightly to Amber beside him: "You go to the North Shore..."

It is said that resurrection from the dead is a miracle.

Gawain felt that he had achieved this miracle.

Well... maybe it's time for him to perform another miracle.

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