Chapter 75 Geosynchronous Orbit
After the radio communication ended, the atmosphere in the cabin suddenly became a little more solemn.
"Ahem!"
Lv Yongchang twisted his body uncomfortably: "Everyone, don't be so dull, we still have to fly for a long time!"
Bai Yixuan, who was sitting in the main driving seat, moved slightly, and said in a deep voice: "Professor Lu, please obey our instructions next!"
"Hong Fan, check the seat belt for Professor Lu again!"
"Yes!" Hong Fan reached out to unbuckle the seat belt on his seat, and stood up to check for Lv Yongchang.
"I say... there's no need to be so serious, right?" Lv Yongchang looked at Hong Fan in front of him helplessly, "I won't joke with my life, I've simulated it many times, and I guarantee that nothing will happen!"
"Professor Lv, I'm a soldier, and obeying orders is my duty!"
Bai Yixuan's faint voice came from the front: "Since Academician Cao has given us an order, we will do everything we can to ensure your personal safety!"
"If..." Speaking of this, Bai Yixuan's voice paused slightly, "If something really happens, you can use my escape device to escape!"
There were originally three escape devices stored on Xuannv No. 1.
Each escape device includes an ultra-high altitude parachuting device, protective clothing and oxygen cylinders.
Although these devices cannot guarantee the safety of the driver in the outer space outside the atmosphere, they can still allow people to return to the ground safely within the atmosphere.
After Bai Yixuan's voice fell, the atmosphere inside the cabin of Xuannv No. 1 became heavier again.
Lv Yongchang was slightly moved.
He subconsciously reached out and touched his nose and whispered, "Actually... I secretly brought a set of escape equipment up, it's behind the cabin."
Bai Yixuan and the other two: "..."
"Ahem! Professor Lu, we have reached the scheduled altitude. Next, the flight posture of Xuannv No. 1 will change. If you feel uncomfortable, please tell us!"
Bai Yixuan changed the subject with a straight face.
Awkward!
Too embarrassing!
He was even ready to sacrifice himself!
But he actually brought a set of escape equipment with him!
What is this? !
Thinking carefully?
Of course, if Lu Yongchang knew what Bai Yixuan was thinking at this time, he would tell him righteously.
Sorry, this is just a simple fear of death.
He doesn't want to live his life again, but he is stuck in such a place for no reason!
...
As Bai Yixuan turned a few buttons on the console in front of him, a cold white light slowly lit up inside the cabin.
"Beep!"
As a reminder of the system self-check sounded, Bai Yixuan's expression suddenly became much more solemn.
"The air pressure is stable!"
"The oxygen content is normal, the oxygen production equipment is operating normally, and the air filter is normal!"
"The power of the Hall thruster is normal!"
"Get ready to accelerate!"
As orderly and compact reports came into Lv Yongchang's ears, the flight posture of Xuannv No. 1 changed.
As the nose gradually tilted up, Xuannv No. 1 was at a 60-degree angle to the ground.
The next moment, a stronger vibration came from under his feet!
The rate of deuterium-tritium bubbles in the small fusion reactor increased rapidly, and amazing energy was quickly released from the deuterium-tritium atoms!
Then, the blue flame at the tail of Xuannv No. 1 became stronger again!
The huge recoil once again pressed Lv Yongchang to the seat!
"Professor Lu, how is it, can you bear this acceleration?"
Bai Yixiuan's question came from the side.
From his voice, it seemed that such acceleration was very easy for him.
On the other hand, Lv Yongchang's face flushed slightly, and he nodded with some difficulty and said, "Don't worry, I can bear this acceleration!"
Xia Wanyi on the right turned her head and looked at Lv Yongchang with some concern, and whispered, "How about... let's slow down a bit?"
...
In the dense atmosphere, the maximum flight speed of Xuannv No. 1 is about Mach 5.
But in the high-altitude space with thin atmosphere, after sufficient acceleration time, the maximum speed of Xuannv No. 1 can reach the first cosmic speed, 7.9km/s, which is about Mach 23.2.
After entering the geosynchronous orbit, without the influence of the atmosphere, after a long period of acceleration, the flight speed of Xuannv No. 1 can even reach the amazing second cosmic speed, 11.2km/s!
This is also the minimum speed required for Xuannv No. 1 to go to the moon!
But even so, because of Lv Yongchang's physical condition, Xuannv No. 1 took a full five hours to reach the 36,000-kilometer geosynchronous orbit.
Although it seems like a long time, compared with the time it takes for a satellite to enter orbit in the past, Xuannv-1 is already very fast!
Low-orbit satellites, that is, near-Earth orbits hundreds of kilometers from the surface of the earth, generally only take a few tens of minutes from launch to orbit entry.
If it is a geosynchronous orbit of 36,000 kilometers, a satellite often needs to go through a long journey of nearly a month before it can successfully enter orbit!
After all, the rocket will only push the satellite into a near-Earth orbit hundreds of kilometers from the surface of the earth, and the rest of the journey will all depend on the satellite itself.
…
As Xuannv-1 gradually climbed in height, the scenery outside the porthole gradually changed.
The distant horizon gradually turned into an arc with a crystal-clear glow.
Then, what came into Lv Yongchang's eyes was a dark space, just like a pure black curtain!
And on this pure black curtain, there were dotted with crystal gems with faint light.
Those crystal gems with faint light are stars tens or even hundreds or thousands of light years away from the earth.
At the same time, a sense of weightlessness came over him.
Lv Yongchang, who experienced this feeling for the first time, frowned slightly.
To be honest, it was not very comfortable.
"Professor, we are here!"
Bai Yixuan's voice came into Lv Yongchang's ears.
Thanks to the good airtightness of the cabin of Xuannv No. 1 and various oxygen-generating and air-filtering devices, as long as they did not leave the cabin, they did not need to wear bulky space suits all the time.
"It's so beautiful..."
Lv Yongchang's deep eyes looked through the porthole in front of him, staring at the distant starry sky intently.
His heart moved slightly.
That was the direction of Proxima Centauri.
As a red dwarf star only 4.22 light years away from the Earth, its visible magnitude is 11, so Lv Yongchang cannot observe it with the naked eye.
But even so, Lv Yongchang still felt inexplicably excited!
Perhaps the future of mankind lies near that distant red dwarf star!
"Calling the ground control center, calling the ground control center, Xuannv No. 1 has arrived in the synchronous orbit, please give instructions!"
Bai Yixuan's voice interrupted Lv Yongchang's meditation.
"Shh... shh... received, Xuannv No. 1, report your situation!"
