490 - - 15-03 Atmospheric entry
Usually, there is a certain trajectory that a space shuttle should take when it enters the atmosphere.
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The air resistance is used to decelerate the object and to maintain a temperature that will prevent it from burning up.
The leading edge of an object entering the atmosphere encounters air resistance.
At this time, the speed is so high that the air is not pushed away before it hits the tip of the object one after another.
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In very simple terms, this is adiabatic compression of air.
It is explained by the Boyle-Charles law in physics, <
In other words, compressed air has heat. It is not a half temperature. The temperature reached is from 3,000 to more than 10,000 degrees Celsius.
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In the case of a spacecraft, there is an orbit to keep this temperature at most 1500-1600 degrees Celsius. It is very important to maintain such a trajectory.
Any unnecessary protrusions or wings will only interfere with this orbital correction.
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The "Mere Old Man" also sends his instructions. The purpose is to increase the air resistance to slow down and to reduce the heat to Falcon 1 as much as possible.
Now, Falcon 1 with Reiko aboard has entered the atmosphere while deploying a physical barrier (solid barrier).
The altitude is about 100 kilometers and the speed is almost 16 kilometers per second. Without deceleration, it would have reached the earth's surface in a few seconds.
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Because of this velocity, a layer of highly heated plasma air forms in front of the physical barrier (solid barrier). It glowed yellow because of the high temperature.
"......Estimated 10,000 degrees, is it? ......<
Reiko tried to cool Falcon 1's fuselage with her engineering magic <
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The nose of the plane became red hot. 64 light silver has a melting point of 1540-1650 degrees Celsius. The melting point of 64 light silver is between 1540 and 1650 degrees Celsius.
The surface of the earth is getting closer and closer. The surface of the earth is approaching rapidly, which is not surprising since it is falling almost vertically. Although the speed is slowing down, it will only take a few seconds to reach the earth's surface.
"<
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With the strongest cooling magic, the aircraft finally breathes a sigh of relief from overheating. Reiko concentrates on controlling the aircraft.
The speed is now about 6 kilometers per second. The altitude has dropped below 20 kilometers.
At this rate, the plane will fall to the surface with insufficient deceleration.
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Jin gives the order. Reiko immediately reacts, adjusts her attitude, and sprays the Magijet engines.
The vertical trajectory of the plane was now angled, albeit only slightly. This gives him a few tenths of a second.
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Yes, sir.
Altitude is 10 kilometers. We're down to three kilometers per second. We're going to crash in less than 4 seconds.
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Reiko decides to release the solid barrier at any cost. She gambled that the air resistance would slow her down at once.
"Father, I adore you!
Muttering a few words to the manacam, Reiko releases the solid barrier.
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* * * * * * * * * * * *
<
In the Horaijima command center, Jin heard Reiko's muttering.
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"Reiko!
* * * * *
At an altitude of 3000 meters, Reiko lifted the physical barrier (solid barrier).
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A chunk of air hit the Falcon 1's fuselage. The speed is 2.8 kilometers per second, Mach 8.
Falcon's assumed upper speed limit is 1,000 kilometers per hour. That's about 0.28 kilometers per second.
Ten times faster ......, but for a few seconds the machine that Jin had poured his heart and soul into withstood the tremendous force.
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In those few seconds, the Falcon 1 dropped to less than Mach speed. In return, the nose was bent and both wings were shredded, but not at the cost of flying.
Falcon 1, which had lost both wings and its fuselage had been distorted, fell in a cone-tight state near the middle of Horai Island and the Elias Peninsula.
The old man, who had predicted the landing spot to some extent, rushed the hydro unit and the mermaid unit to the site.
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"How are you doing, Mr. President?"
The hydro unit rushed to the location of Reiko.
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They could find Reiko as soon as she floated up to the sea surface.
Meanwhile, the Mermaid team succeeded in recovering the Falcon 1, which had sunk into the sea, and almost 80% of the scattered wings and other debris were also recovered.
"......"
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Jin was weak in the command center of Horai Island.
"Jin-kun, what's going on?"
"Did something go wrong?"
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Before he knew it, Stearina and Toa had arrived around him.
They seemed to have come because they were worried about Jin's strange behavior.
"Oh, my mistake, I made Reiko walk on a dangerous tightrope. ......"
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Jin briefly explained the circumstances.
Stearena, who had a basic knowledge of the situation, seemed to understand it, but Toa was listening with a face that said, "I honestly don't understand it.
* * * * * * * * * * * * * *
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In the evening, Reiko returns. She returned with the wreckage of Falcon 1.
The first thing she said when she saw Jin's face, the only one left in the control room, was,
"Father, I'm sorry for destroying Falcon 1.
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He said, "You idiot!
"Idiot!
Jin yelled louder than ever before. Reiko literally jumped back.
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"I'm sorry, father! I didn't want to break it as much as possible. ......"
Jin silently approached Reiko as she bowed her head.
Jin gently puts his hand on Reiko's shoulder as she cries more and more.
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"Reiko, I'm glad you're okay."
"Thank God you're okay, Reiko." "Thank God you're ...... safe.
It's all my fault for my naive outlook. I don't blame you for doing your best. But I must be a little angry with you for pushing yourself too hard.
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With that, Jin dropped a fistbone on Reiko's head.
"It's not just Falcon. I'll be sad if you get hurt."
Reiko, who also has a sense of touch, could tell that the fist was not very forceful. She also knows that Jin's fists are not so forceful, and with them, the affection that she feels for him.
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"......I'm sorry. ......"
Reiko apologizes weakly, and Jin gently hugs her as if to comfort her.
"I'm sorry. You've always been a great help to me.
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"No, that's my role.
Jin patted Reiko on the head,
"How are you feeling? Is something wrong with your body?
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He asked with a worried look on his face.
"No, I'm fine. Nothing is wrong with this body that your father gave me.
<
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"How about the recovered Falcon 1, old man?"
Finally, he could afford to worry about other things.
<
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"Well, that's good."
Jin immediately instructs the old man to repair Falcon 1.
He analyzed the control core of the recovered satellite 001 to find out the problem.
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"Father, I will help you.
Naturally, Reiko was his assistant.
In this way, Jin and Horaijima gathered their strength, taking their failures as food for new challenges.
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Before that, however, I should add that Reiko and the old man had a three-hour lecture from Jin.