The following story is pure fiction
The story of the three-body world is summarized: there are high-level intelligent creatures like humans in the Centauri galaxy, and their populations may be extinct at any time. After they discovered humans, they sent interstellar fleets to the earth ...
The year between the trio sending out the starship fleet and the establishment of the ultimate deterrence by Luo Ji, the man on the earth's side wall, is collectively called the crisis era
When the Three-Man invasion plan was discovered on Earth, human beings immediately began to respond to the plan, including building their own Starfleet. In the crisis era of 119, mankind built the first experimental starship, which is a star cruiser.
The ship is equipped with an experimental shaped rail gun. A total of four ships of this type were built, one of which collided with interstellar dust during the experiment and disintegrated on the spot. The other three ships were retired after the service phase, and the ship was mainly used to perform space weapon testing tasks.

Operation method: AG1 is anti-gravity floater, AG4 is pitch controller activation key, AG5 is forward 4, AG6 is space stop generator, AG7 is shaped rail gun, AG8 is gyroscope.
Note: The left and right rotation and up and down of naval gun are controlled by Pitch and Roll respectively, the Pitch attitude controller is controlled by Pitch, and the left and right rotation is controlled by Yaw. Translation may be a bit strange, please don't mind. I wish you have a good time