After the radio communication ended, the atmosphere in the cabin suddenly became more tense.
"Cough cough!"
Lu Yongchang shifted uncomfortably: "Everyone, don't be so somber, we still have a long flight ahead of us!"
Bai Yixuan, sitting in the driver's seat, showed a slight change in expression and said in a deep voice, "Professor Lü, please follow our instructions from now on!"
"Hong Fan, please check Professor Lü's seatbelt again!"
"Yes!" Hong Fan reached out and unbuckled his seatbelt, then got up to check on Lü Yongchang.
"I mean... there's no need to be so serious, is there?" Lu Yongchang looked at Hong Fan in front of him with a helpless expression. "I won't joke around with my own life. I've simulated it many times, and I guarantee nothing will happen!"
"Professor Lü, I am a soldier, and obeying orders is my duty!"
Bai Yixuan's calm voice came from ahead: "Now that Academician Cao has given us the order, we will spare no effort to ensure your personal safety!"
"If..." Bai Yixuan paused slightly, "If something really happens, use my escape device to get out of there!"
The Xuan Nu No. 1 originally housed three escape devices.
Each escape system includes a high-altitude parachute device, protective clothing, and oxygen cylinders.
While these devices cannot guarantee the safety of pilots in outer space outside the atmosphere, they can still ensure a safe return to the ground within the atmosphere.
After Bai Yixuan finished speaking, the atmosphere inside the cabin of Xuan Nu No. 1 became even heavier.
Lü Yongchang was slightly moved.
He subconsciously touched his nose and said softly, "Actually... I secretly brought an escape device up here, it's in the back of the cabin."
Bai Yixuan and the other two: "..."
"Ahem! Professor Lü, we have reached the designated altitude. Next, the flight attitude of Xuan Nu No. 1 will be changed. If you feel uncomfortable, please be sure to let us know!"
Bai Yixuan changed the subject with a straight face.
Awkward!
That's so embarrassing!
He was even prepared to sacrifice himself!
It turned out that the person had brought their own escape device!
What is this?!
After careful consideration?
Of course, if Lü Yongchang knew what Bai Yixuan was thinking at this moment, he would tell him in a righteous and stern tone.
I'm sorry, it's just that I'm afraid of dying.
He didn't want to be reborn, only to be inexplicably defeated in this kind of place!
...
As Bai Yixuan pressed a few buttons on the control panel in front of him, a cool white light slowly illuminated the interior of the cabin.
"drop!"
As the system self-check notification sounded, Bai Yixuan's expression immediately became much more serious.
"Air pressure is stable!"
"Oxygen levels are normal, oxygen generator is operating normally, and air filtration is functioning properly!"
"Hall thruster power is normal!"
"Prepare to accelerate!"
As a series of orderly and rapid reports reached Lü Yongchang's ears, the flight attitude of Xuan Nu No. 1 changed somewhat.
As the nose of the aircraft gradually tilted upwards, Xuan Nu-1 reached a 60-degree angle with the ground.
The next moment, an even stronger tremor came from beneath my feet!
The rate at which deuterium-tritium bubbles appear inside the small fusion reactor increases rapidly, and astonishing bursts of energy are rapidly released from inside the deuterium-tritium atoms!
Immediately afterwards, the dark blue flames at the tail of Xuan Nu No. 1 intensified once more!
The immense recoil once again pressed Lü Yongchang firmly into his seat!
"Professor Lü, how is it? Can you handle this acceleration?"
Bai Yixuan's voice came from the side.
Judging from his voice, such acceleration seemed to be very easy for him.
In contrast, Lü Yongchang's face flushed slightly, and he nodded with some difficulty, saying, "Don't worry, I can handle this kind of acceleration!"
Xia Wanyi, on the right, turned to look at Lü Yongchang with some unease and said softly, "How about... we slow down a bit more?"
...
In areas with dense atmospheres, the maximum speed of Xuan Nu-1 is approximately Mach 5.
However, once in the thin atmosphere of the upper atmosphere, with sufficient acceleration time, the maximum speed of Xuan Nu-1 can reach the first cosmic velocity, 7.9 km/s, which is about Mach 23.2.
Once in geosynchronous orbit, freed from the influence of the atmosphere, and after a long period of acceleration, Xuan Nu-1's flight speed could even reach an astonishing second cosmic velocity, 11.2 km/s!
This is also the minimum speed required for Xuan Nu-1 to travel to the moon!
Even so, due to Lü Yongchang's health condition, it took Xuan Nu No. 1 a full five hours to barely reach the geosynchronous orbit at a depth of 1,000 meters.
Although it seems like a long time, compared to the previous satellite orbit insertion time, Xuan Nu-1 can be described as incredibly fast!
Low Earth orbit satellites, which are in near-Earth orbits hundreds of kilometers above the Earth's surface, can typically be launched and put into orbit in just a few tens of minutes.
In a geostationary orbit at a depth of 1,000 meters, a satellite often needs to travel for nearly a month to successfully enter orbit!
After all, rockets only propel satellites into low Earth orbit, a few hundred kilometers above the Earth's surface; the satellites must travel the rest of the way on their own.
...
As the Xuan Nu No. 1 gradually ascended, the scenery outside the portholes began to change.
The distant horizon gradually transformed into a shimmering, crystalline arc.
Next, what came into Lü Yongchang's view was a pitch-black cosmic space, just like a pure black curtain!
And on this pure black curtain, there are scattered, faintly glowing gemstones.
Those faintly glowing, crystalline gems are stars that are tens, hundreds, or even thousands of light-years away from Earth.
At the same time, a feeling of weightlessness came over me.
Lu Yongchang frowned slightly as he experienced this feeling for the first time.
To be honest, it's not a pleasant feeling.
"Professor, we've arrived!"
Bai Yixuan's voice reached Lü Yongchang's ears.
Thanks to the excellent airtightness of the Xuan Nu-1 cabin and various oxygen generation and air filtration devices, as long as they do not leave the cabin, the crew does not need to wear bulky spacesuits all the time.
"So beautiful..."
Lu Yongchang's deep gaze lingered on the distant starry sky through the porthole in front of him.
A slight thought crossed his mind.
That's the direction of Proxima Centauri.
As a red dwarf star located only 4.22 light-years from Earth, it has a visible magnitude of 11, therefore, Lü Yongchang cannot observe it with the naked eye.
Even so, Lü Yongchang still felt a strange surge of emotion!
Perhaps humanity's future lies near that distant red dwarf star!
"Calling ground control center, calling ground control center, Xuan Nu-1 has reached geostationary orbit, please provide instructions!"
Bai Yixuan's voice interrupted Lü Yongchang's thoughts.
"Hiss...hiss...Received, Mystic Maiden Number One, reporting your situation!"
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