The production here on Enemy Star is mainly basic products. After all, the current AI capabilities are limited, and we cannot control the clones on Enemy Star in real time, so we cannot carry out too precise production. But being more basic means a problem, the quantity of goods must be extremely large. Based on current production, on average, hundreds of millions of tons of cargo are transported from Enemy Star to Rosen Star every year. Some of the rarer, high-end, and time-sensitive goods can be transported by special cargo spacecraft - the absolute quantity of this part is actually quite large, roughly estimated to reach an average of tens of millions of tons per year. If Li Qingsong had not specially upgraded the thruster technology before, the previous spacecraft alone would not have been able to complete these transportations. But relying on cargo ships, even those with upgraded propulsion technology, transporting tens of millions of tons of cargo each year is already the limit. How to transport larger quantities of goods that are several times larger than this? Even if Li Qingsong put all his effort into building spaceships, and there were so many spaceships that they filled the entire route, he would still not be able to transport so much supplies. What to do then? If this problem is not solved well, then the tens of thousands of factories that Li Qingsong spent several years building on the enemy star will lose a considerable part of their meaning and become useless. But it doesn't matter.
Long before the large-scale development of Enemy Star, Li Qingsong had already considered this problem and found a solution. This is the large electromagnetic catapult device! Li Qingsong found some gentle slopes on the enemy star in advance. At this moment, large-scale construction began using these gentle slopes as construction sites. Li Qingsong first controlled the clones and drove various machines to complete the reinforcement and leveling of these gentle slopes, building them into a straight line pointing obliquely to the sky. Afterwards, a large number of special steel rails from the steel plant arrived by roaring train, and countless clones operated mechanical equipment and rushed forward. With the assistance of more special machinery, they laid these special rails one by one on the previously leveled foundation. Several power plants then sprang up, with thick cables extending out and connecting to one electromagnetic catapult device after another. At the same time, Li Qingsong built a well-connected railway line on every gentle slope, extending to every factory on the enemy star. Every gentle slope is a railway intersection on the Enemy Star. Here, Li Qingsong also built large-scale port facilities, including various tower cranes, gantry cranes, etc., and there is no telling how many there are. After more than a month of busy work, the first large-scale electromagnetic catapult device was finally completed. Under Li Qingsong's close attention, the first ejection is about to begin. The generators at the power plant roared, and the surging electricity rolled along the lines. At the beginning of the 30-kilometer-long railway, a huge metal box had been placed on the catapult vehicle and secured. This metal box is 30 meters long, 7 meters wide, and 7 meters high, so it has a total volume of about 1,450 cubic meters. If used to transport solid oxygen, this box can transport 1,800 tons. If it is used to transport other resources with higher density, this box can even hold more than 3,000 tons of cargo. At this moment, with sufficient electricity supply from a power plant specially designed for this purpose, based on electromagnetic power, the catapult vehicle carrying a heavy cargo box weighing 1,800 tons began to move along the rails on the gentle slope. In the first second of its movement, its speed went from static to about meters per second. In the second, its speed became meters per second. With every passing second, its speed increased by meters, and finally, after about 75 seconds, its speed reached 800 meters per second. At this time, it was getting faster and faster, and was pushed to the end of the railway track laid on a gentle slope, with a total length of 30 kilometers.
At this moment, the buckle used to secure the cargo box on the ejection vehicle automatically popped open. Without being secured, the huge and heavy cargo box immediately separated from the ejection vehicle under the action of inertia. Under the restriction of the rails, the catapult car passed the highest point of the gentle slope, continued to move forward along the downhill slope and began to slow down. Because the heavy cargo box had lost its fixation, it could only continue along its current trajectory and fly directly out from the highest point of the gentle slope. Normally, under the influence of the planet's gravity, the cargo box will fall to the ground on its own after flying for a period of time. But the situation is different now. The reason is very simple, its speed has reached 800 meters per second at this moment. And this speed has exceeded the first cosmic speed of the enemy star! Once it exceeds the first cosmic speed, it will no longer fall down, but will begin to revolve around the enemy planet like a satellite! The heavy cargo box flew higher and higher, and finally arrived in space about 40 kilometers away from the enemy planet, where it established a stable orbit around the enemy planet. Without using rockets, spacecraft, or any chemical fuel propulsion equipment, Li Qingsong threw such a heavy cargo box directly into space in this way! In the entire transportation process of goods, breaking free from the planet's gravity and entering space is the most energy-consuming stage. And now, Li Qingsong has completed this step directly on the surface of the planet. The rest is easy. This cargo box has already acquired a fairly high initial speed. Next, it only needs to increase its speed a little bit more to break free from the gravitational field of the enemy planet. By controlling the course and calculating the orbit, it can fly to Luoshen by itself! Then, under the control of the traffic AI, several small thrusters automatically attached to the cargo box and automatically completed the calculation of a series of subsequent parameters. Including the current speed, coordinates, direction of the cargo box, as well as the position of Rosene, and based on these data, it automatically calculates how much speed should be added to the cargo box, where to start accelerating, where to stop, to what power the thrusters should be started, and so on. After all the calculations were completed, the thrusters were ignited, adding a little more acceleration to it. Then the cargo box broke free from the gravitational field of the enemy planet and flew straight into the vast and deep space. At this moment, its speed is only 950 meters per second. At this speed, it will take about years to reach Luoshen over a distance of more than 40 million kilometers, which is very long. But...it doesn't matter! Li Qingsong had already transported the goods with high timeliness requirements by cargo ship, and they would arrive in more than a month. There is no timeliness requirement for the goods sent by this catapult device. Li Qingsong can afford to wait for years!