This civilization is very strong, but the technology tree is a bit crooked

Chapter 82 Self-launching integrated attack satellite (seeking first order))

"For a qualified satellite, the most important thing is communication and communication, which I am good at."

"Then there is the remote sensing detection system, which I also mastered when I studied radar before, and I am also good at it."

"Then there is the orbit changing function of the satellite, which is mainly realized by ion thrusters, which is also good at it."

"In addition, as a qualified satellite, it is necessary to equip some self-defense weapons. Combined with the space environment, it is most suitable to use tiny laser weapons. I am also good at this."

"In this way, all functions are integrated, and the mass can be controlled at 9 to 10 kilograms, which belongs to the nano-satellite level."

"The last thing is to find a way to send the satellite up. The rocket method is a bit outdated, and we need to find a launch site."

"The carrying capacity of the moon landing drone is not enough, and it can't transport a few satellites at a time."

Chen Yi took out a pen and paper, and wrote that a qualified satellite requires technology.

Finally, calculate the demand for computing satellites to enter orbit, and probably have a plan in mind.

"Perhaps, I can use the ion propulsion method, combined with the solar charging shell, to make an integrated satellite, and let it float up by itself."

"No problem, low-speed spaceflight."

"Low-speed spaceflight can go into orbit first, and then accelerate, so that there is no influence of atmospheric resistance, and the ion thruster can easily accelerate to orbital speed!"

The Starlink system, as a satellite network in space.

The core must be the satellite, followed by the launch vehicle that sends the satellite into the sky.

However, this time, Chen Yi did not plan to build a launch vehicle, nor did he use a drone to land on the moon.

He intends to combine ion thrusters with satellites to create a special satellite that will enter orbit by low-speed spaceflight.

It is common sense that satellites want to enter space.

Must reach the first cosmic speed of 7.9km/s.

If you want to leave the planet, you must reach the second cosmic speed of 11.2km/s.

But in fact, if someone has learned the vertical ladder, he can fly by stepping on the left and right feet.

Depending on the speed of walking, this can also go out of space and leave the planet.

An aircraft with a lift-off speed of 0.01m/s.

If the flight lasts long enough, it can also fly away from the planet and into space.

And this way of leaving the planet and entering space is called low-speed spaceflight.

That is, it is not necessary to reach the first cosmic velocity to space and enter the space orbit.

It's just that this way of spaceflight into orbit will consume more energy and fuel, and generally no one will use it.

But for Chen Yi who used ion propulsion + solar charging shell to directly make an integrated satellite.

Energy, that's the least of your worries.

It is more suitable for low-speed spaceflight to enter orbit.

"However, if low-speed aerospace wants to enter orbit, there is one more point to pay attention to."

Chen Yi reviewed the plan for low-speed spaceflight.

Soon, find a point that you almost missed.

That's propellant.

All combustion power generation is inseparable from boiling water.

All aerospace is inseparable from throwing stones.

Astronautics The power source for entering space is essentially based on the second law of Niu.

By injecting propellant outward, a reverse thrust is obtained, thereby sending the spacecraft into space.

The injected propellant is the stone thrown.

And energy is the energy that throws the stone out.

It's just that the usual rocket spaceflight uses the combustion propulsion method, and the propellant and energy are mixed together.

The fuel energy carried by the rocket is sufficient, and the propellant must also be sufficient.

But ion thrusters are different.

The propellant and energy source of the ion thruster are separate.

The energy source is the electrical energy of the battery, which is charged by the solar panel.

The propellant is the gas that is accelerated by an electric field.

Now with a solar charging case for energy worry-free.

But this propellant needs to be considered whether it is enough.

Without enough propellant, no matter how much energy is charged, it can only be blinded and useless.

"The satellite is in the atmosphere and can supplement the propellant by absorbing gas molecules from the outside."

Before the 120-kilometer Karman line, there is no need to worry about propellant.

Even the Karman line is far below the boundary of the atmosphere, and satellites can get some traces of propellant at this altitude.

In this way, as long as you carry enough propellant to orbit before crossing the Karman line, you will be fine."

Chen Yi spread out the paper and pen, and began to calculate seriously.

The general satellite orbit height is divided into three levels.

One is at an altitude of 150 to 200 kilometers, the second is at an altitude of 350 to 1,500 kilometers, and the third is a synchronous orbit of more than 30,000 kilometers.

The lower the orbit, the greater the influence of the atmosphere.

The faster the crash time, the shorter the life span.

The height of SpaceX's Starlink satellites is generally 550 kilometers.

This means that the normal lifespan of Starlink satellites will not exceed 1 year. If some means of raising the orbit and speed are included, it can generally last for 2 to 3 years.

"The propellant is fine, but you need a supercapacitor."

"Use a capacitor to increase the power by 89.2 times and increase the propellant injection speed"

Chen Yi calculated for a while.

The final result was obtained.

Working fluid engine.

Under the premise of constant propellant quality.

There is no doubt that the faster the propellant is injected, the greater the thrust obtained.

Previous ion propulsion drones.

Because the energy is not enough, the power needs to be limited.

With the same power, the thrust obtained by increasing the jet quality is greater than the thrust obtained by increasing the jet speed.

But now, satellites don't need to limit power while saving as much propellant as possible.

This will naturally be replaced by a plan to increase the power and increase the injection speed.

"Start playing machine!"

"Oh no, start making stars!"

Make sure there is no problem with the calculation of the scheme.

Chen Yi felt refreshed and didn't rest.

Put on a virtual helmet.

On the premise of ensuring maximum space and structural stability.

Chen Yi joined the aerodynamic layout considerations.

Began to design the ion thruster and satellite in one, referred to as the structural diagram of the integrated satellite.

an hour later.

The structure diagram of the satellite is completed.

Chen Yi made another supporting technical plan for the satellite remote control system.

Then all together, the various equipment introduced into the production area start automated manufacturing.

Make sure there is no problem with the manufacturing process.

Chen Yi dug out another blank main control board, took the communication module, antenna, general-purpose chip, and some components such as supercapacitors used in laser weapons, and started to make the main control board of the satellite.

Forty minutes, the main control board was completed.

Chen Yi went on to produce a small laser gun, and a solar panel with a conversion rate of 54.8%, II-V compounds, made into the appearance of a satellite shell.

Put satellite spare parts, remote sensing detection module, main control board, communication module.

As well as Chen Yi's own private use, the carbon-silicon lithium battery with an energy density of 5980Wh/KG is assembled together, including the solar charging case and so on.

One is made of carbon fiber composite material and covered with a layer of solar panels.

The overall ellipse is rolling, and the satellite, which is a circle larger than the trunk of the battery car, is officially released.

[Item: Self-Ascension Integrated Attack Satellite]

[Attributes: energy x49.1, propellant x8.7, speed x2.1, specific impulse x21.3, strength x16.8, stability x21.4, communication x29.2, remote sensing shooting x21.9, attack x3.6 , main control x0, beauty x8.7]

[Note: This is a brain-opening, unique, powerful nano-satellite with self-lifting capability.

If you write a suitable master control program for it.

Perhaps, you can release it in space like a Kongming lantern]

"It seems that the craftsmanship has not fallen, and the attributes are good."

"None of them have attenuated due to design manual problems."

"Like a Kongming lantern, flying in space is quite an appropriate description."

Chen Yi looked at the evaluation of the integrated satellite, and nodded with satisfaction in his heart.

As for the main control program

It is also his first time to engage in stardom, so he really doesn't understand this.

Maybe it can be compiled after two days of research.

But this is such a waste of time.

"System, adjust!"

Colorful rays of light bloomed, covering the satellite in front of me.

【Energy: 49.1→19.3】

【Master control: 0→29】

【Speed: 2.1→2.9】

[Detected that multiple attributes exceed the initial value, do you want to read the information? whether! 】

"It seems that the basic design of this satellite, the speed of 2.9 points, and the main control attribute of 29 points are the limit."

Looking at the main control attribute that gets stuck at 29 o'clock and can't be raised, and the speed that can't be raised at 2.9.

Chen Yi knew in his heart that this was the limit.

After all, that's what satellites do.

The main control program is playing well, and this will not become a star warship.

Moreover, the round shape of the satellite makes it difficult to fly fast.

"Read."

Chen Yi chose to read.

A piece of information came to mind.

Unremarkable.

This is a copy of the control system for satellites and ion propulsion.

With the assistance of the system, it will be digested within a few minutes.

"Adjust the other attributes together."

After digesting the information of the satellite master.

Chen Yi continued to adjust other attributes.

The speed attribute is already limited to 2.9, want to read the technical information.

Other attributes can be adjusted to within 29 at most, and cannot exceed 10 times the minimum attribute.

call!

The light bloomed and enveloped the satellite.

For this adjustment, Chen Yi intends to sacrifice the two attributes of the communication module that he can manufacture and produce, as well as the energy battery, to fulfill other attributes.

Ten minutes later, the light dissipated.

Presented in front of Chen Yi was a sapphire-like, shining, beautiful satellite.

[Item: Satellite - as bright as a gem! 】

[Attributes: energy x3, propellant x8.9, speed x2.9, specific impulse x28.3, strength x28.8, stability x28.4, communication x3, remote sensing shooting x28.9, master control x29, attack x3.9 , beautiful x27.7]

[Detected that multiple attributes exceed the initial value, do you want to read the information? whether! 】

[Note: This is a collection-level satellite that is as exquisite as a jewel. Its low energy attributes and communications make it impossible to fly in space.

Perhaps, you can store it at home as a shining home guard router, which is also a good choice]

"This is the shining charm of aesthetic attributes?"

At this moment, Chen Yi felt that his eyes were going to be dazzled.

Quickly lowered the beauty attribute by 15 points, from 27.7 to 12.7

Now, the dragon will go crazy when it sees the satellite.

It has become a satellite that shines much brighter than Dongfanghong-1, but is still within the receiving range.

"The attack of 33.9 is the limit, and this laser gun is still too small."

"Propellant properties, 8.9 is also the limit."

"It seems that this integrated satellite can go up to the mid-level orbit of about 1,000 kilometers at most, and cannot enter the geostationary satellite orbit."

Look at this exquisite satellite.

Chen Yi took a deep breath.

Choose Read Properties.

boom! A lot of information flooded my mind.

After several hours.

Chen Yi digested all the information.

I have a mature and perfect plan for the Starlink satellite in my heart.

Think about it.

Take out your phone.

"Since we want to develop Starlink, we should just be more generous and open, and earn a lot of consciousness waves to feed Xuannv."

"Anyway, with the laser defense array, there is no need to worry about any danger."

With that said, Chen Yi logged into his self-media account that he hadn't logged in for a long time.