Movie black technology

The number of nano thrusters is in the hundreds of thousands, and it is impossible to count them clearly in a short period of time.

But each thruster has a fixed weight, and because the total amount of thrusters that can be produced can be roughly calculated based on the amount of raw materials, they only need to weigh the scraps, and then combine them with the total weight of the expected output to know the approximate yield rate.

Of course, to weigh nanomaterials, electronic scales cannot be bought casually on the street, and must be specially made.

The simple method is often simple and efficient. Put the waste on the scale, and the weighing result will come out quickly. Then do the addition, subtraction, multiplication and division that the second grade of elementary school will know, and the good product rate will also come out.

"The good product rate is only about 40%."

The person who reported the results had a bad face.

Originally, the upper limit of the total installed capacity was a batch of 500,000 thrusters, but now there are only 200,000 thrusters left.

This yield rate can be said to be extremely low.

Chen Shen sighed, he had already expected that things would not always go smoothly.

"Chief, should we continue production now? Should we wait for the machine before improving it?" The researcher next to him looked over with some embarrassment.

Without thinking about it, Chen Shen said: "Don't stop the production line, continue to put materials into production, now the propellers in the machine are stored first, and then take out qualified propellers from other production lines, and propel the propellers produced by the three machines. put them all in one machine to assemble the big thrusters."

"Understood!" The researcher nodded, and immediately went to execute the order.

A black antelope needs four sets of propulsion units, that is, large thrusters, and each set theoretically requires 500,000 nano-thrusters.

However, considering that there is no human intervention in self-assembly, the accuracy will definitely decrease. It is impossible to put 500,000 thrusters in, and all of them can be installed in a suitable position with exactly one radish and one hole.

Therefore, it is necessary to prepare a little more nano-thrusters and put them in during assembly, so that it is possible to fill up all the 500,000 pits.

Fortunately, the final assembly line of nano-thrusts does not only produce one unit, but is built in batches. The Dashan factory where he is located is already full of final assembly lines that have been completed or are under construction.

Therefore, the propellers produced by one final assembly line are not enough, and they can be transferred from other production lines to assemble enough propellers before assembly.

It's just that the completion time of each production line is different. Although the first batch of trial production started at the first time, the production cycle is different from each other, so it took a few days before the factory could gather enough nano-thrusters and put them all in the factory. Final assembly takes place in a final assembly machine.

After waiting for three more days, the first large thruster was finally assembled.

The appearance of a common rocket engine looks like an inverted peaked hat. The diameter of the bottom of the nozzle alone is higher than a person, and there are circles of messy-looking wire tubes around the outside. Industrial beauty, and even a bit of hand-made rough taste, but the propellers of the Tibetan Antelope are different.

From the appearance, the plasma thruster does not look messy at all, the shell is very neat, without coils, the shape looks like a medieval wooden wine barrel, and there are a few neat bulges on the waist.

Moreover, its diameter looks like a tire of a car, and its overall height is only about one meter. Compared with the rocket's violent engine, it looks like a little gentleman.

"It's finally finished!"

"I don't know if the nano thrusters inside are installed in place."

Two researchers carefully protected the thruster that had just been removed from the production line, and pushed it into the testing room.

This time the detection cannot use the simple method.

The researchers first tested the nanowires inside the thrusters to make sure they were working properly.

Then the interior of the thruster was scanned, and it was roughly determined that there was no large-scale deviation in the installation range of the nano-thrust inside, which means that in general, this thruster is normal.

After this step, there is no need for a more detailed inspection.

With the current technical means, it will only take time and effort to carefully check this kind of thing that uses nanomaterials on a large scale. If there are 500,000 nano-thrusters, when will it be checked one by one?

With that time, wouldn't it be better to just let the propeller go on the test bench?

Practice is the only criterion.

At that time, whether the engine can ignite successfully and how long it can run will naturally be known.

As for the matter of the test bench, Chen Shen had already been planning ahead during the time he was waiting at the factory.

According to the results of the communication, they can use the domestic rocket test bench casually, and can also carry out appropriate modifications.

In short, things on the test bench went very smoothly, whether it was communication or transformation.

After all, the thrust of this plasma thruster is only 17 tons, not even 20 tons. For a test bench that tests hundreds of tons of thrust engines at every turn, a little guy like a plasma thruster, even if it exerts enough strength, it will May not feel.

The propeller was hoisted in the container by the Jingwei helicopter that flew over from the dome base, and was quickly transferred to the test site for preparation.

Rocket engine test benches are different, but generally it is a shelf made of cement or other materials, with an engine seat in the middle of the shelf. The engine can choose to lie down and move by itself or stand upwind and pee on its own.

Then there will be a diversion groove in the direction of the engine injection port.

Because the high-temperature and high-speed airflow ejected during the test run of the rocket engine has strong impact and corrosion, it is necessary to guide the gas to a place away from the test stand to prevent the flame smoke and debris from reflecting back to the test stand and destroying the engine and equipment.

Popularly and simply put, the diversion tank is a small pool dug deep.

Around the test bench, there are usually fuel tanks needed by the engine.

However, for plasma propulsion, fuel tanks and diversion tanks are not needed, and only power and propellant need to be prepared.

After getting ready the night before, the thrusters were sent to the test stand early the next morning.

The test bench Chen Shen chose was a vertical test run, that is, the kind that allows the engine to pee while standing upwind.

This kind of test bench can best simulate the state of the engine when the rocket is launched, and this test bench has also modified the engine position as required, so that the nozzle angle of the engine can be adjusted from perpendicular to the ground to parallel to the ground.

In this way, it can fit the situation on the Tibetan Antelope as much as possible.

On the Tibetan Antelope, if the angle of the propeller is based on the body, it can also be switched at will within 90 degrees from parallel to vertical.

After the thrusters were installed, the staff evacuated immediately.

And Chen Shen looked at the test bench in the monitoring room, and silently pressed the start button within the scheduled time.

I will be liberated the day after tomorrow ╮(╯_╰)╭