Humanity is missing, luckily I have billions of clones.

Chapter 247 50% light speed!
Although these "unmanned spacecraft" have no people on board, they are still controlled by the soldiers in the rear, so in an absolute sense, they can still be classified as manned spacecraft.

In contrast to these manned spacecraft are truly unmanned spacecraft.

This part is relatively simple, and it still includes the facilities that have been possessed in the electro-weak civilization stage, such as mines, satellites, artillery batteries, fortresses, land-based and space-based air defense, unmanned warships, etc., all of which do not require human intervention and can independently perform combat missions and exert combat effectiveness under the control of war AI.

It’s just that compared with the electro-weak civilization stage, the unmanned combat force of the strong nuclear civilization is more powerful and the performance of various facilities is higher.

For example, unmanned warships that are also equipped with energy shields and energy cannons, interstellar mines that use strong nuclear excited states as explosives, higher-performance spy satellites, more intelligent war AI, supercomputing bases with higher computing power, and so on.

In this way, the control bases, supercomputing bases, war AI, and logistics supplements in the rear, the intelligence systems, manned and unmanned combat systems, etc. on the front line constitute the various elements of war, which are organically combined into a large network to form the military force of a strong nuclear civilization.

At this stage, the battleship fleet has completed a comprehensive upgrade. Li Qingsong controlled the clone, together with the Wukong AI, and took advantage of the fact that the material reserves were still sufficient to directly carry out exercises and combat training in space, in order to better integrate this war network, open up the various nodes of this network, and better coordinate various elements to exert the most powerful combat effectiveness.

Of course, because material reserves are ultimately limited, and in order to avoid making too much noise that might be discovered by distant observers, Li Qingsong did not conduct live-fire exercises, and the warship's propulsion was also limited to a lower power.

Although it was not a live-fire exercise, Li Qingsong's understanding of the war model of strong nuclear civilization continued to deepen.

Feeling his combat power increase, Li Qingsong was filled with excitement.

While conducting exercises and research on military technology, Li Qingsong was still carrying out large-scale industrial construction tasks.

Not only warships, but also civilian spacecraft, industrial spacecraft, transport spacecraft, scientific research spacecraft, etc. have also started the process of upgrading.

However, Li Qingsong did not demolish all the existing old aerospace motherships, transport spacecraft, etc.

For some large spacecraft, Li Qingsong retained their propulsion systems and overall structures, and only dismantled and recycled the internal components.

Afterwards, these large spaceships that were almost empty shells became Li Qingsong's "garbage dump".

Over the years, Li Qingsong's large-scale industrial activities have produced a huge amount of "garbage".

Li Qingsong is currently unable to recycle these wastes.

But we can't just throw them into space.

There are too many of them. Once some exhaust gas, particles, etc. are released into space, they can easily form a "garbage nebula", which becomes a landmark indicating their own route and may lead to their exposure.

At this moment, these large spaceships that have become empty shells have become garbage dumps.

Li Qingsong dumped a large amount of non-recyclable materials into these empty spaceships until all the empty spaceships were full.

At this moment, Li Qingsong's non-military spacecraft transformation and upgrading mission was also a complete success.

Whether it is an aerospace mothership, a transport ship, or an industrial ship, all have been upgraded to hydrogen fusion power, equipped with high-speed ion thrusters, and equipped with energy shield systems suitable for large non-military spacecraft.

From now on, the plastic film that Li Qingsong has used for thousands of years can finally be retired.

Now that we have the energy shield, even if the fleet's speed is increased several times, we don't have to worry about the problem of interstellar particle collisions!

Well... there's one thing we can do. Increase the speed!
Obviously, the higher the speed, the more difficult it will be for the Intelligent Scourge Fleet to catch up with him, and the more time he will have to develop.

Looking into the deep and vast space, a sneer appeared on Li Qingsong's lips.

"You had a lot of fun playing in the solar system.

Like a vicious dog, it keeps chasing me and seems to be having a lot of fun chasing me.

Just wait, it won’t be long before I make you happier…”

Under Li Qingsong's command, the main fleet's thrusters were once again turned on uniformly.

The surging energy from the protium fusion reactor makes the high-speed ion thrusters start to run rapidly. A large number of ions are ejected at high speed, giving the fleet a constant supply of kinetic energy.

At the same time, the empty spaceship that became Li Qingsong's garbage dump did not follow the main fleet.

They were loaded with the garbage that Li Qingsong had produced over the years, and at the same time they accelerated, but flew in another direction.

"Let this garbage fleet provide one last cover for my main fleet."

The garbage fleet gradually moved away and eventually disappeared from sight.

At this moment, based on the original 8% speed of light, the speed of Li Qingsong's main fleet began to further increase.

After a brief low-power propulsion to create distance from the garbage fleet, the fleet propulsion immediately entered full-power state.

At that time, the overall acceleration of the Intelligent Scourge Fleet could reach 0.8 meters per second squared, which made Li Qingsong very envious.

Now, although the overall acceleration of Li Qingsong's fleet failed to reach 0.8 meters, it reached 0.5 meters. The two are already on the same order of magnitude, and the gap is no longer huge.

Thus, after five years of continuous advancement, the main fleet's speed reached about 5 kilometers per second, breaking the 10.28 kilometers per second mark for the first time!

After continuing to advance for about three years, the main fleet's speed finally reached the planned speed.

50% of the speed of light, 15 kilometers per second!
With Li Qingsong's current technological level, considering various factors, such as fuel utilization, thruster efficiency, energy shield power consumption, protection strength, etc., 50% of the speed of light can basically be regarded as the maximum speed of Li Qingsong's fleet.

At this moment, at a speed of up to 50% of the speed of light, Li Qingsong observed more wonderful changes.

Li Qingsong saw that the stars in front of the fleet became increasingly blue, while the stars behind the fleet became increasingly red.

In the past, when the fleet's speed was only 8% of the speed of light, the intensity of the blueshift and redshift effects was only about 8.3% and 7.7%. In simple terms, it can be understood that the stars in front of the fleet became 8.3% bluer, and the stars behind the fleet became 7.7% redder.

At this moment, the speed has increased to 50% of the speed of light, and the blue shift and red shift effects are greatly enhanced.

After some observation, Li Qingsong saw that the stars in front of the fleet and the stars behind it had turned bluer and redder by about 70%!

(End of this chapter)