Although this battleship weighs more than 100 tons, it is still the smallest warship in Li Qingsong's plan and is the most basic combat unit. Li Qingsong calls this level of warship the "Mercury" class. Mercury is the closest major planet to the sun. From the inside to the outside, they are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. In the future, when Li Qingsong builds larger and more powerful warships, they will be Venus class, then Earth class, and so on. This Mercury-class battleship carries seven clones. Two of the clones are machine gunners, specializing in operating two machine guns; two of the clones are machine gunners, specializing in operating two machine guns. There is also a missile operator, who is responsible for controlling eight interstellar missiles, a spacecraft pilot, who is responsible for flying the spacecraft and controlling its attitude, and a communicator. Li Qingsong and his clones naturally did not need to use any instruments to communicate, but the spacecraft itself also had a lot of information exchange with many logistical support equipment, friendly forces, etc. This information also required a dedicated communicator to handle. He will continuously determine the position coordinates of the spacecraft during flight, as well as the coordinates of enemy targets relative to himself, the coordinates of friendly forces, various coordinates conveyed by superior combat units, etc., and convert them into parameters of his own warship, and provide them to the driver, machine gunner, gunner, and missile operator for reference. In addition to these, there is also a logistics support staff.
In the cabin, he is not only responsible for first aid, emergency repairs, logistics, etc., but he also needs to take over the combat mission in case the other clones are seriously injured and unable to perform their duties. So there were seven clones in total. Originally, a captain was needed to be responsible for coordinating and commanding all other crew members, but with Li Qingsong, there was no need for a captain. At this moment, the clone of the spaceship pilot pushed the spaceship control lever hard. As the command arrived, the output flow of the liquid oxygen tank and methane tank reached maximum in an instant. The rolling liquid oxygen and methane entered the combustion chambers of the spacecraft's six engines and burned violently. A huge amount of high-temperature and high-pressure gas was generated instantly and violently ejected from the nozzles whose directions had been adjusted. Under the huge reverse thrust, the speed of the Mercury-class battleship weighing more than 100 tons suddenly increased, and it almost broke free from the gravitational field of Rosene in a straight line and flew straight into the depths of the boundless space. About 150,000 kilometers away from Rosene, an abandoned cargo spaceship serving as a target is moving slowly at a speed of kilometers per second. This Mercury-class battleship chased it rapidly, and when it was only 500 kilometers away from it, its speed had reached seven kilometers per second. After arriving at the predetermined shooting position, the communicator quickly observed and calculated the positions of each target and determined the shooting parameters. Without speaking, this information was synchronized into Li Qingsong's head, and then from Li Qingsong's head to the machine gunner and gunner's heads. According to these parameters, they quickly operated on the dashboard, and the two large machine guns on the hull of the spacecraft accurately adjusted their shooting directions under the control of the automatic controller. The two machine guns also completed aiming at the same time. The spacecraft pilot quickly began to adjust the angle and fuel usage of the spacecraft's jets, setting them to synchronize with the recoil. The machine gun switch was pressed immediately. In an instant, two machine guns with a maximum firing rate of two thousand rounds per minute began bombarding at the same time. A large number of projectiles rushed towards the target spacecraft in front at a speed of one kilometer per second, plus the spacecraft's own speed of seven kilometers per second, and finally at a speed of eight kilometers per second. At the same time, the spacecraft's engine was also started synchronously, and hot gas was ejected from the nozzle at a relatively gentle speed. Although it could not propel the spacecraft to move, it just offset the recoil caused by the machine gun firing, and at the same time maintained the stability of the spacecraft's hull so that it would not shake. Before the torrent of bullets reached the target ship, the machine guns started firing.
Two huge shells were fired from the barrel at a speed faster than bullets. They have a stronger recoil. Although they have been specially designed to reduce recoil, that is, the tail flame of the shell will be ejected in the direction of offsetting the recoil, it cannot be completely eliminated. This part of the recoil that cannot be eliminated will cause violent shaking of the spacecraft. But it doesn't matter. Li Qingsong had already taken this into consideration during the design. The spacecraft's attitude control system, which was born in the space laboratory, then came into play, and the spacecraft's thrusters started synchronously, spraying in opposite directions with a force that was neither too strong nor too weak, just enough to offset the recoil again. So, the target ship was first riddled with holes by tens of thousands of bullets. Later, two shells arrived and blew it into pieces. After completing the first exercise, the Mercury-class battleship did not stop, but immediately started turning and accelerating, flying in another direction at the original inertial speed. The communicator continued to report various parameters, and the pilot adjusted them accordingly. Not long after, another target spacecraft came into view. This target spaceship is faster, but it doesn’t matter, as the speed of the battleship has also increased. Still a fierce artillery fire, it was shattered to pieces again. Then the third one, the fourth one... When it came to the fifth ship, the situation was different. This fifth target ship had a very strong power. As the battleships chased it, it accelerated desperately and made random maneuvers to avoid the bullets and shells fired at it. Several rounds of machine gun fire fell in vain. Then an interstellar missile was suddenly launched. Driven by the fierce tail flame, the missile suddenly accelerated by three kilometers per second from its original speed, and was still increasing rapidly. Not only that, with the help of the automatic tracking unit and external guidance, it firmly locked onto the fleeing spacecraft. The target spacecraft turned sharply, and the interstellar missile also turned with it, and it turned faster and at a higher speed! Eventually, the interstellar missiles caught up with it. In the instant before the impact, the 150KG of high explosive loaded in the missile warhead exploded. Although there was no shock wave here, the scorching heat and flying shrapnel still destroyed the target spacecraft in an instant. Li Qingsong had previously set up a total of 12 target spacecraft. The status of these spacecrafts varied. Some were escaping quickly, some were maneuvering desperately, some were releasing interference, and some were equipped with heavy armor. But no matter what the situation was, under the attack of this Mercury-class battleship, in less than five hours, all 12 target spaceships were destroyed!