Homo sapiens.

Chapter 454 The Floating Dandelion
The first year of Xinghe, October 6th.

Ceylon Ocean.

Mada Island.

Homo sapiens invested and built the Northern Space City, which finally completed all the engineering construction at this time, and also solved various technical problems of the dandelion mass projector.

Even Li Qingye, who has been working in the headquarters in Southeast Asia, came to Mada Island from the headquarters a few days ago by the [-]th Aerospace Fleet.

In the past few days, he conducted a rough inspection of the various industries and cities of the Mada Island branch.

At this time, he was visiting the entire base accompanied by Su Changli, the chief engineer of the Dandelion Project.

Inside the space station in the underground base.

A space train is on display on the track.

"Mr. Chairman, this is the Tinder space train we designed." Su Changli introduced him excitedly.

Li Qingye looked at the somewhat special Tinder number: "The one inside is the Tinder number, right?"

Su Changli nodded: "Yes, the outside is a vacuum track. I call this part the shell."

The so-called bullet case is that this thing itself is a part of the vacuum electromagnetic acceleration pipeline, and it is specially designed like this only for the convenience and rapid launch.

The length of this section of pipe is 300 meters, the inner diameter is 30 meters, and the Tinder space train installed inside is 100 meters in length and 10 meters in diameter.

"What's the payload on the Spark?"

"The Tinder has a take-off weight of 1.2 tons, a low-earth orbit payload of 4000 tons, and a synchronous orbit of 3000 tons."

"The low-Earth orbit effective factor is 33%? Not bad." Li Qingye is very satisfied with this data.

Although Su Changli was very happy, he didn't get carried away: "Actually, this is also due to the electromagnetic acceleration and vacuum tubes, otherwise it would be very difficult to do."

Why is the effective coefficient of low-Earth orbit for conventional launch vehicles below 3%.

The reason lies in the initial acceleration and air resistance, which eat up a large part of the power of the launch vehicle.

And the mass projector of the Dandelion project, in the electromagnetic acceleration of the ring-shaped pipeline stage, will increase the speed of the Pyro to the first cosmic speed, and then, it will be projected out.

After being projected, the Tinder will continue to fly for 30 kilometers in the vacuum tube. During this period, the Tinder's engine will start to continue to accelerate the Tinder and counteract the gravity of the earth.

Li Qingye looked at it for a while: "You guys arrange the launch!"

"Okay." Su Changli hurriedly called Bai Sha, the person in charge of another technical department, to arrange the launch work.

The huge shell-shaped pipe, carrying the Pyro, passed through the orbit together, and slowly moved to the circular acceleration pipe, where there happened to be a gap.

After the two were combined, the staff in the control room started the vacuuming process.

The entire ring-shaped pipe and the column-shaped vacuum pipe pulled by the ring-shaped airship, the air inside is rapidly reduced.

The vacuum system does not stop until the air density in the vacuum pipeline is equal to the air density at an altitude of 3 meters.

The reason why the vacuum is not completely evacuated is that on the one hand, it is impossible to evacuate completely, and on the other hand, it is to avoid a sudden difference in air density.

Choose to be consistent with the air density at an altitude of 3 meters, which will make the moment when the Pyro rushes out of the vacuum pipeline, it will not be affected by the difference in air density.

At this time, Su Changli had brought Li Qingye to the control room.

Baisha saw that the vacuum degree of the pipeline had reached the standard, so he immediately ordered: "Start circular acceleration!"

The power supply system inside the base injects surging electric energy into the electromagnetic acceleration frame.

This electromagnetic acceleration rack is the equipment responsible for acceleration, and the Pyro itself does not have any active parts for electromagnetic acceleration.

The electromagnetic accelerator frame sandwiches the Pyro and starts to accelerate along the circular acceleration pipeline.

From the initial 10 meters per second, the speed has increased to 10 meters per second in less than 500 minutes.

At this time, the electromagnetic accelerator has already run almost half a circle in the ring-shaped pipeline, and the length of this ring-shaped pipeline is 300 kilometers.

The speed of the electromagnetic accelerator is getting faster and faster. After several laps in the ring-shaped pipeline, the speed is finally raised to the limit of 7800 meters per second.

"Start changing tracks."

The staff presses the track change switch, and the control system automatically adjusts the track to connect the inclined and curved pipes of the circular pipe.

7 seconds later.

The electromagnetic acceleration rack slides along the track into the inclined curve pipeline, which is also the last section of the electromagnetic acceleration pipeline.

When the electromagnetic accelerator frame enters the hard pipe of the column-type vacuum pipe, the Pyro will automatically ignite instantly at an altitude of 1500 meters.

Vacuum pipes are silent.

But Li Qingye still saw the ignition moment of the Pyro through the data of the temperature sensor.

At this time, the tail flame and exhaust gas generated by the ignition of the Pyros are sprayed on the bottom plate of the electromagnetic acceleration frame, just to decelerate the electromagnetic acceleration frame.

The Tinder maintained a speed of 7.8 kilometers per second and flew upward along the vacuum hard pipe.

Then break through the hard pipe and get into the vacuum hose area.

The speed of 7.8 kilometers per second was astonishing, and the 26-kilometer-long vacuum hose area was crossed by the Pyro in just over three seconds.

Boo!
The Spark penetrates the insulating membrane above the pipe.

However, the speed of the Tinder, already at an altitude of 3 meters at this time, has not decreased, and the power of burning at a low flow rate is enough to allow it to overcome the gravity of the earth.

After all, the air density at an altitude of 3 meters is very small, and it is almost a vacuum.

And as the Pyro flies higher and higher, the gravity of the earth and the air resistance of the atmosphere will become smaller and smaller, which means that the power required by the Pyro will also become smaller and smaller.

9 seconds after breaking through the barrier film.

Tinder flies over the Karman line.

"Core level separation!"

The core stage of Pyro is separated from Pyro, and Pyro’s space train still has a weight of 6000 tons. Since this mission is in the middle orbit, Pyro’s payload is 3600 tons, and the rest is fuel and auxiliary engines. kind.

The dropped core stage was not scrapped. Instead, it used the remaining 500 tons of fuel, adjusted its descent speed continuously, and finally landed on the northeast coast of Motor Island, where there is a special aerospace landing site.

Compared with other conventional launch vehicles, the core stage of the Tinder can be used at least 50 times.

On the one hand, it is because of the unique integrated manufacturing technology of Homo Sapiens, and on the other hand, it is also because of the vacuum pipeline and electromagnetic acceleration, which itself has relatively little damage to the body of the Pyro.

at the same time.

After the Tinder broke through the Karman line.

The body with a length of 50 meters and a diameter of 10 meters simply scared the world to death.

For comparison, you can know the heavy-duty Falcon launch vehicle. The take-off state of the heavy-duty Falcon launch vehicle is 70 meters in length, the diameter of the rocket body is 3.6 meters, and with two boosters, the take-off weight is about 1400 tons.

When the Pyro flies out of the Karman line, it is roughly equivalent to the take-off weight of a four-engine heavy-duty Falcon.

As long as the size data of the Tinder can be detected, the payload of the Tinder can basically be judged.

Obviously, the world's major aerospace agencies and intelligence agencies that are paying close attention to Homo sapiens are naturally not incapable of analyzing even this kind of data.

The Tinder did not dawdle in the low-Earth orbit, but adjusted the orbit twice through the auxiliary engine, and then flew directly to the middle orbit.

The mission of the Tinder this time is to go to the Homo sapiens space station.

Although it was a test mission, Su Changli, who was full of confidence, obviously did not intend to waste the payload of this launch mission.

The Tinder will stay at the Homo sapiens space station and become the main axis of the Homo sapiens space station.

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(End of this chapter)