


Nonetheless, railgun weapon systems are occasionally referred to as MACs - as in the case of the Mini-MAC armamanent of the M510 Mammoth. This process differs from that of a railgun - a similar weapon system which feeds electrical current through a projectile to accelerate it along two conducting rails. As such, the longer a MAC's length is, the faster the muzzle velocity of the fired projectile. This process is repeated as the projectile travels the length of the gun, with each successive solenoid accelerating the projectile to higher and higher velocities. As the projectile reaches the coil, a second coil is activated, attracting the projectile further down the barrel of the gun. When a solenoid is activated, the projectile is attracted to the coil. The construction of the weapon takes the form of a series of coiled conducting wires (or solenoids). When firing, a series of stacked asynchronous linear induction motors are sequentially activated, propelling a projectile with vast amounts of kinetic energy. 3.1 Atmospheric use and orbital bombardmentĪn animation of a coilgun's operating principle.However, the technology is not exclusively used in spinally-mounted MAC guns, with naval autocannons (themselves sometimes referred to as "MiniMACs") and even ground-based weapons such as the M68 Gauss cannon and M99 Stanchion operating on the same principle. With a handful of exceptions, MACs are typically spinally-mounted, meaning that the entire ship is built around the gun, with the cannon running a significant portion of the length of the ship's stern.

MACs are fitted as a standard armament on most UNSC Navy vessels, ranging from small Gladius-class corvettes to Marathon-class heavy cruisers and even carriers or refit civilian ships such as the Phoenix-class colony ship. MACs are coilguns employing Asynchronous Linear Induction Motor (ALIM) technology and are typically used in military applications, though similar technology can be used in civilian mass drivers for industrial use. Within the UNSC, MACs are defined as a heavy weapon that fires a sizeable ferric-tungsten round at supersonic velocities from the bow of a capital ship, orbital defense platform or mounted driver emplacement. The magnetic accelerator cannon, also referred to as a mass accelerator cannon or MAC, is a type of heavy weapon system employed by humanity, primarily the spacecraft of the United Nations Space Command. Hamilton and Admiral Mitchel Deven discussing MACs.

But it’s a little like a church bell-" - Non-commissioned Officer Allen C. Hamilton: " Space? Those things even make noise in zero-gee?" Deven: " If you’re inside a MAC ship when the cannon fires? I don’t know if you’re a religious man, Officer.
