The dust storm finally began to dissipate, and the communication between Base Six and the outside world was fully restored, and the spacecraft, which had been parked in space for nearly three months, slowly landed in the hangar of Base Six with supplies from Azure Star to the alien planet.

Because of the voyage and the material delivery plan, a spaceship full of supplies arrived at Base Six a week later, which gave the base a sense of abundance of supplies, in other words, it was actually the materials saved in the past three months of tight days.

There are not many spaceships in the Federation, and there is no way to build a rocket launch base on an alien planet, which is tantamount to building a target for the Imperial army, and the movement of the rocket launch is easy to be clearly captured, so it can only rely on the spaceship to ascend from the alien surface into space on its own. The alien atmosphere is very rare, and the chemical fuel propulsion technology that the Federation is best at is greatly limited in this environment, and the spacecraft can fly directly into space from the alien surface, and the key point of the technology lies in only four words: force brick flying.

The alien atmosphere is thin and does not have enough oxygen for the chemical fuel to burn adequately, so it must carry the same oxides as rockets. At the same time, the amount of chemical fuel is increased, and if the force is large enough, the bricks can fly directly from the surface into space. However, this also leads to the need to store more fuel and oxides in the spacecraft's carrying space, and the space that can be used to store materials is correspondingly reduced.

In fact, since the era when Ji Xinghe was born, the Federation has already had the technology of Hall thrusters, and the requirements for the atmospheric environment are very low, and the environment of the cosmic vacuum does not matter. However, this technology is only applicable to space propulsion, such as spacecraft attitude control, position keeping, orbital maneuvering and interstellar flight, etc., and the flight process of rising from the surface of the Azure Star into space is not as good as chemical fuel propulsion technology before the Federation's Hall thruster technology or other thruster technology has not been qualitatively developed.

In 2021, the Federation Longzhou took the lead in putting into use four LHT-100 Hall thrusters for the space station, and although the thrust of each unit was only 80 milliN, it was already the most advanced Hall thruster device in the Federation at that time. In contrast, the thrust of a single engine of a fighter using a chemical-fueled propulsion unit at that time was able to easily exceed 100 kN, which is not a small difference.

After sixty-five years, although the relevant technology of the Federation continues to develop and progress, the only manned flight device that can really be applied to alien in actual combat is the individual starship that Ji Xinghe once wanted to 'borrow'.

"A solo starship?"

Instructor Li, who came to say goodbye to Ji Xinghe, heard Ji Xinghe's question after saying something similar to Lieutenant Colonel Chen Xun, so he had a helpless expression: "Lao Ji, the single starship is really more difficult to open than the mecha, yes, I know that you often drive a single starship in the game of Interstellar Glory, but the game is a game after all, and it is already a miracle that you can open a mecha, how can you really drive a single starship." ”

Also because of the dispatch order, Su Chuanyun, who came to say goodbye, began to give Ji Xinghe science popularization of the difficulty of piloting the individual starship.

"My goal when I first joined the army was to fly a single starship, which was also called an air and space fighter at the earliest, which could fly directly from the surface of the Azure Star into space, and could also fly directly to alien stars. Unfortunately, even with my physical fitness, I can't withstand the ultra-high overload caused by the extreme speed of a single starship, so I can only choose to be a mechwarrior. It's an overload of ten Gs casually, even if it's due to alien gravity, the protective ability of the protective suit, etc., this is not something your body can withstand. ”

Instructor Li added: "Overload is generally divided into positive overload and negative overload, positive overload is in the case of acceleration, centrifugal force is applied from the head to the feet, the blood is pushed to the lower part of the body, if the pilot's muscle structure can not be adjusted well, the brain will not get proper blood replenishment, and the pilot is prone to visual problems called gray vision or black vision." If the pressure continues, it can eventually lead to a coma in the pilot. Negative overload, on the other hand, is the opposite of flying with negative acceleration, such as flying upside down, blood rises to the head, and intracranial pressure increases, resulting in uncomfortable and even painful sensations. In terms of the speed of a single starship, it is far beyond the overload of ordinary fighters and mechs, which is not a joke. ”

Su Chuanyun sang and harmonized with Instructor Li: "Lao Ji, it's easy to drive a single starship when you play games, because virtual reality technology doesn't have a real overload on your body, so you think you can drive a single starship." But in fact, even if you can really pilot, you can't play the true speed of a single starship, as long as you play you will be unconscious, with the speed of a single starship, a careless operation is a plane crash. ”

Ji Xinghe originally just asked casually, he didn't trust Xingyue who had not been fully upgraded, and if there was really a crisis, it would be difficult for Xingyue to protect his granddaughter alone. But if there is a single starship, it is different, although the individual starship is a single soldier equipment, similar to a fighter jet generally has only one pilot, but it is not a big problem to really add a passenger, and some fighters are two-seaters.

But at this time, hearing the doubts of these two people, I had to get serious: "Have you two seen the data records when I was driving the mecha in battle?" ”

"I've seen it, I've seen it all."

"Not only did I see it, but I also used the second-generation immersive system to bring you into driving mode, and I got dizzy." Su Chuanyun said without shame: "It was when you collided with the imperial mecha holding the war knife, I fainted. Speaking of which, I really don't understand, why didn't you faint at that time, boss? At that time, the impact force was as high as 3.5 tons, which was equivalent to a person jumping from a nine-meter-high position and falling directly on the concrete floor, or falling to the ground on his stomach, why didn't you faint? ”

Ji Xinghe groaned slightly, and asked again: "Why do you faint?" ”

Instructor Li and Su Chuanyun were stunned for a moment, they looked at Su He next to them, strictly speaking, it was Su He's shooting device, so they could only answer this question seriously.

"The impact force felt by piloting the mecha is not the same as the real impact, the protection of the mecha and the protective suit is similar to the overload during maneuvering, the blood in your body will fluctuate based on inertia, and of course the sudden increase in blood pressure will faint."

"It is also possible that it is not a sudden increase in blood pressure, but a reflux of blood, and the brain cannot be replenished with blood, and it will also faint."

Ji Xinghe nodded, and then asked, "Then do you know what Dan Jin is?" ”

This time, let alone Instructor Li and Su Chuanyun, Su He next to him was also stunned, and then excitedly focused the camera on Ji Xinghe.

Instructor Li stiffened his face: "Lao Ji, don't bluff people, everyone is their own people, it's not necessary." ”

Su Chuanyun's face was full of doubts: "Lao Ji, I asked, and the doctor said that you don't have Jin Dan in your body, so you don't have Dan Jin at all." ”

"Dan Jin is not Jin Dan, I am just practicing martial arts, not cultivating immortals." Ji Xinghe groaned again and then began to explain: "The so-called Dan Jin is the restrained golden pill, which is round everywhere. ”

"Boss, you're really bluffing." Su Chuan Yunleng said: "One will say that there is no Jin Dan, and the other will say that there is Jin Dan, do you have Jin Dan?" Why don't we get you an X-ray again? Or MRI? ”

"The introverted Jin Dan is just a metaphor, not the real Jin Dan." Ji Xinghe said helplessly: "Instead, hold Dan and sit on his hips, to exaggerate it, it is to condense the essence and blood pulp of the whole body into a point, which is the so-called Jin Dan." To put it bluntly, in fact, it is to concentrate the strength of the whole body, which is concentrated in the dantian, and then explodes, the closer it is, the stronger the explosive ability. You only use your fists to beat people, and you can't help but use all the strength of my body. ”

Su Chuanyun sighed, extremely disappointed: "There is still no golden pill." ”

Instructor Li was stunned and asked, "So what?" What does this have to do with what we just said? ”

"It has a relationship, the strength of the whole body naturally includes the strength of the breath and the strength of the blood, and the success of holding the Dan means that you can control the qi and blood with your mind." Ji Xinghe finished explaining and asked again: "You just said, why did you faint?" ”

"Forehead......" Su Chuanyun's eyes suddenly widened: "Lao Ji, what do you mean, if you want high blood pressure, you can have high blood pressure, and if you want to have low blood pressure, you can lower blood pressure?" Or do you want to be anemic? ”

Instructor Li suddenly realized and asked, "So, your Xingyue is in the mode of sitting and driving, because you can hold Dan and sit on your hips while sitting?" ”

"Forget it." Ji Xinghe waved his hand and said, "You just tell me if Base No. 6 can take the driver's license of a single starship." ”

"I can't."

"Don't even think about it, the mecha won't let you open it, and you still want to drive a single starship, Lao Ji, we're leaving, you take it easy."

Okay, I'll take it easy.

Ji Xinghe looked at the surface of the alien land outside the porthole that had returned to its clearness, and then looked at the individual starship parked in the hangar, if it was okay, he would take it easy.