The coil acceleration projection system, Gustav Equipment.
Before learning about this long-range, mass destructive weapon system from Spider, Roland had never considered the existence of weapons with a range exceeding 1000 kilometers, let alone such a complex weapon system.
Similar to the Paris Cannon, K12E Train Cannon, Barbados Cannon, and Baghdad Cannon, ultra-gauge long tube guns with a barrel diameter of 800mm and an ultra-long barrel of 120 meters–150 times its diameter. Through step-by-step coil acceleration, a 4.8-ton shell can be accelerated to a speed of 10 kilometers per second–a super high initial speed of 30 Mach. With the assistance of this high-speed kinetic energy that surpasses the first cosmic speed, the shell can even fly out of the stratosphere, becoming a shell satellite orbiting the planet's surface.
