Cataclysmic Era: I can unlock the tech tree

Xia Kingdom.

An air force training base.

Bai Yixuan, his face pale, clutched his lower back and looked up at the blazing sun in the sky.

"Finally, it's over..." Hong Fan's uniquely hoarse voice came from the side. "My God, I never want to come to this training base again in my life!"

Hearing Hong Fan's complaints, Bai Yixuan gave a wry smile, shook his head, and said, "Don't even mention you, I don't want to see this training base again!"

Hong Fan's eyes lit up slightly: "Brother Xuan, you can't hold on either?"

"This is quite a rare occurrence; it's the first time I've ever seen you back down, Brother Xuan!"

Bai Yixuan glanced at Hong Fan with annoyance and said irritably, "What are you talking about?"

"I'm not a robot, I definitely couldn't handle this level of training!"

A burst of cheerful laughter came from the side: "I think Brother Fan is right. Since we met, I've never seen Brother Xuan complain about the training!"

Bai Yixuan turned his head and looked helplessly at Xia Wanyi, who was smiling behind him: "Judging from how energetic you two are, how about I contact the coach again and we go fly around in the sky again?"

The smiles on Xia Wanyi and Hong Fan's faces vanished instantly.

The two of them shook their heads like rattles.

Are you kidding me?!

Want to fly around in the sky again?

Recalling the scene when they first arrived at the training base a month ago, the two of them shivered slightly under the scorching sun!

The three people who had just arrived at the training base were dragged onto three training aircraft without any theoretical knowledge.

They claim that hands-on experience is the best teacher.

then……

The three astronauts were thoroughly tested by their respective instructors.

Cobra maneuver, Nesterov somersault...

Although the three astronauts were in good physical condition, they were still quite exhausted by these fancy maneuvers.

After the "torture" of the first day, from the second day onwards, the daily lives of the three astronauts were fixed on their respective training aircraft.

In just a month or so, the three of them accumulated an astonishing 300 hours of flight time!

On average, each person spends a full 10 hours on a plane every day!

It can be said that during this month, apart from eating and sleeping, the three of them spent almost all their time on the training machine.

"It's finally over..."

Xia Wanyi shook her head, trying to clear her mind of those painful memories. Then she stretched and sighed softly, "Shouldn't we go see Professor Lü next?"

"I wonder if that so-called spaceplane is even finished yet..."

Bai Yixuan glanced at Xia Wanyi's figure as she stretched and said irritably, "Don't be too happy yet."

"Professor Lü said that after the training at the Air Force training base, we would also need to conduct some training on the spaceplane!"

Xia Wanyi smiled and tossed her neat short hair, saying, "It's alright! After all, it can go to space!"

"Just thinking about this makes me stop feeling tired!"

Looking at Xia Wanyi's radiant smile, Bai Yixuan was momentarily lost in thought.

……

A roar of an engine came from overhead.

Bai Yixuan's eyes flickered slightly as he looked up at the armed helicopter slowly descending from the sky. He whispered to his teammates beside him, "We should head out now!"

……

Inside a factory building outside the Xia State National Aerospace Research Institute.

A streamlined, jet-black aircraft was parked quietly among them.

The aircraft's structure is similar to that of the American B-2 bomber.

The biggest difference between it and the B-2 bomber is that its wing size is not as exaggerated as that of the B-2 bomber.

Thanks to its powerful power system, the fuselage is 30 meters long, but the wingspan is only 25 meters.

At the tail of this spaceplane were ten dark, circular Hall thruster nozzles. (The description of the engine's shape at the beginning of Chapter 63 has been corrected.)

Lu Yongchang stood in front of the spaceplane, his eyes filled with admiration.

This is the first true spaceplane in the Xia Kingdom!

It is no exaggeration to say that this spaceplane represents the highest level of human technology at this moment!

"Professor Lü, how about... you give it a name?"

Academician Cao Liangcai's voice came from the side, interrupting Lü Yongchang's immersion in thought.

Cao Liangcai paused for a moment, clearly recalling the three major plans of Xia Kingdom that Lü Yongchang had introduced some time ago.

"The Mysterious Maiden series spaceplanes in the Southern Heavenly Gate Project?" Cao Liangcai raised an eyebrow slightly and asked softly, "What, you're not really planning to actually launch that Southern Heavenly Gate Project, are you?"

Lu Yongchang chuckled softly, his deep gaze returning to Xuan Nu No. 1 before him: "Of course, not only the Southern Heavenly Gate Project, but the Heavenly Court Project will also be realized in the future!"

Cao Liangcai glanced at Lü Yongchang with a strange expression.

The Heavenly Court Project?

That massive fleet of 2500 starships?

He chuckled softly and slowly shook his head.

Are you kidding me!

That kind of thing, you can probably only see it in science fiction movies!

"What? You don't believe me?" Lu Yongchang caught Cao Liangcai's movements out of the corner of his eye, then turned to him with a smile and asked.

Cao Liangcai was momentarily speechless.

Is this a matter of belief or not?

No normal person would believe that, right?

"How about we make a bet?"

After the completion of the Xuan Nu No. 1, Lü Yongchang's mind became much more active.

Without the slightest hesitation, Cao Liangcai immediately nodded and asked, "What are we betting on?"

Lü Yongchang fell into deep thought.

"Hehehe... Professor Lü, if our Xia Kingdom really achieves the Heavenly Court Plan in fifteen years, I'll eat this Xuan Nu No. 1 right here and now!"

Seeing Lü Yongchang deep in thought, Cao Liangcai said with a smile.

Lu Yongchang glanced at Cao Liangcai speechlessly.

Fellow Daoist, the area is completely covered with flags!

He shook his head slightly and said irritably, "Forget it, this 'Mysterious Maiden No. 1' will just be a souvenir; I'm afraid you can't afford it!"

"How about this, if it really comes true, you just have to treat me to a meal."

"I want to eat... chicken leg rice from Sandaokou University."

Cao Liangcai was equally speechless: "Professor Lü, are you serious?"

Seeing Lü Yongchang nod earnestly, Cao Liangcai smiled wryly and rubbed his nose: "Alright, it's settled then!"

"If it doesn't work out, you can still treat me to a meal!"

Just as Lü Yongchang and Cao Liangcai were "chatting," a researcher rushed up to Lü Yongchang and whispered, "Professor Lü, the three spaceplane pilots have arrived!"

Lu Yongchang's eyes suddenly lit up!

The driver has finally arrived!

"Let's go, let's go meet the driver. Whether this big guy can take off depends on the three of them!"

Lu Yongchang called out to Cao Liangcai and then turned to walk towards the factory gate.