Mobile City Travel Guide

Chapter 130 Submarines have this function?

Li Xin immediately ordered the production workshop to start operating at full capacity, producing the Zeus's Wrath depth charges without stopping, and deploying them on a large scale on the Starfire and other ships. He also moved the anti-magic stone wing aircraft that had been gathering dust in the warehouse out and temporarily used them as anti-submarine aircraft by attaching depth charges to them.

When the monsters launch another attack, they'll be in for a world of trouble.

As for how to use the remaining 1400 evolution points, he had already figured it out.

Produce a submarine and then evolve it to become part of the Starfire's underwater combat force.

They acted immediately, investing a large amount of iron ingots and alloys to get the production workshop up and running.

With a series of brand-new components being delivered to the assembly plant, which is now in full swing, a brand-new submarine is taking shape at a visible speed.

While observing the situation, I also felt a bit of financial pain regarding leaving the new place.

Compared to conventional vehicles, building a warship or submarine requires dozens of times more metal resources.

The only thing that gave him some psychological comfort was that after unlocking the "R-3 Reusable Type" iron ingot evolution branch, the Starfire's metal recycling efficiency had greatly improved. In the future, if he needed to travel to a new world, he could easily dismantle the submarine and recover a large amount of metal resources simply by introducing a current of a specific frequency.

When the submarine was completed, Li Xin was dumbfounded when he saw its evolutionary branch.

【Item Name: Submarine】

[Description: This is a modern attack submarine, primarily used for underwater reconnaissance, anti-submarine warfare, surface strike, and escort missions.]

[Evolutionary Branch:]

[Accessory Upgrade - "Deep Diver": Comprehensively enhances the submarine's diving configuration, increasing its maximum safe diving depth to 50,000 meters.] — 400 Evolution Points [Future Naval Warfare Vehicle Upgrade Protocol - Mobile Reloading Optimization: Completely transforms the submarine's weapon launching and reloading system with future technology, reducing its torpedo launching and reloading time to within 3 seconds.] — 700 Evolution Points ["Ocean Worker Ant" SX-07 Engineering Submarine: Your submarine evolves into a future-standard integrated engineering submarine, capable of mining and refining mineral veins and oil and gas in the ocean.] — 1000 Evolution Points "This..."

'

Li Xin seemed somewhat disappointed.

As he had anticipated, the submarine should have several powerful evolutionary branches, which would be used to fight sea monsters after they evolved. But this time, only functional ones appeared.

"Do people in the future still use submarines to mine minerals?" he wondered.

Upon closer examination, it actually makes quite a bit of sense. After all, the deep sea is the most resource-rich place on the planet, such as in dormant basins.

Oil and gas fields, hydrothermal sulfides ejected from submarine volcanoes, rare metals covering the seabed, and so on.

Ordinary ships cannot mine in the deep sea; only submarines can.

This third evolutionary branch is indeed practical. Combined with the enhancement of the first evolutionary branch, this submarine can become the main vehicle for the Starfire to mine resources at sea.

So he simply bought the first and third evolutionary branches.

The submarine immediately underwent a series of novel and exaggerated changes. A compact sonar array appeared on its bow, and reinforcing ribs appeared on the surface of the hull. It also acquired engineering equipment such as multi-jointed robotic arms, grabs, cutting torches, drills, suction nozzles, and ultrasonic flaw detectors.

Its interior forms a highly integrated modular smelting unit, as well as multiple storage compartments.

The only drawback is that this submarine has no combat capabilities whatsoever.

Since the submarine's internal and external structure was designed to facilitate engineering and mining, it was naturally not equipped with torpedo tubes or missile vertical launch systems.

Li Xin wasn't worried. Once he had enough evolution points in the future, he could continue to upgrade the submarine and unlock new evolution branches.

Just then, he suddenly remembered something.

Within the "Multiverse Traveler" mobile city evolution branch, there is a submersible form. This means that the Starfire can...

It can navigate underwater like a submarine, and even dive down.

"Why don't we just go and see the deep sea?" he couldn't help but think.

He was actually very curious about the deep sea and longed to see it for himself. That dark world where sunlight never reaches, those strangely shaped deep-sea creatures, those ancient trenches and seabeds...

Especially that ocean abyss, the origin of the monsters.

Furthermore, everyone needs to accumulate experience in deep-sea diving, which may prove useful in the future.

After completing the "research and development" of the submarine, Li Xin immediately invested a large amount of resources in the production workshop and built five ocean worker submarines.

Submarines are extremely large vehicles, so the metal resources stored in the Xinghuo were almost completely consumed in one go.

However, Li Xin was not worried. After all, with these six engineering submarines, he could continuously mine minerals in the ocean and replenish them quickly.

He dispatched them in pairs, one after the other. The personnel to pilot the submarines had already been trained in the city's training facilities.

The ocean worker submarines immediately began their work diligently. They came to the top of the seabed sediment basin and used sonar arrays to scan the geological structure below in order to search for minerals, oil and gas and natural gas.

The first team quickly located a large, exposed mineral vein. Two submarines slowly extended their robotic arms and began...

Large chunks of ore were extracted and sent into the submarine hatch.

Crusher, ball mill, flotation cell, electric arc furnace, ingot casting machine... Under the orderly operation of a series of engineering machines inside, rows of various metal ingots were quickly smelted.

Meanwhile, the second and third teams also discovered seabed oil and gas fields, respectively.

After the pipelines were connected and secured, several submarines activated their booster pumps to continuously extract crude oil/natural gas and used internal engineering equipment to refine the crude oil.

In the following period, the six engineering submarines began to transport the mined and smelted ore and oil and gas back to the Xinghuo.

"That's really great!" Li Xin exclaimed.

It's important to know that what the Starfire needs most is ore and oil and gas. The former is the prerequisite for all manufacturing and production, while the latter can supply energy to the city and support a series of land, sea and air vehicles.

"If I had known this submarine would be so useful, why would I have bothered building the drilling platform?" he muttered to himself.

The new plan is to recycle the materials and smelted metals after the drilling platform is used up, and then build more engineering submarines.

He was also very curious as to why the human civilization on their home planet had never considered using submarines to mine underwater mineral veins and oil and gas resources.

Just then, Lu Chen suddenly strode over, his face showing a hurried expression.

"What's wrong? Didn't I tell you and the storage team to handle the fish we caught?" Li Xin asked curiously.

Lu Chen nodded.

"Yes, but there's been a slight issue," he replied.