Mark II is a iteration that uses light coils. This model was known as Mark I, Light Coil - 11A1C2 MAC, and it was the only Mark I model built, before to be supplanted by Mark II and following iterations. Gorgons ships could fired only three slugs, as they haven't much space for other shells. Installed aboard Gorgon-class heavy destroyers, it fired lighter slugs compared to subsequent iterations. Mark I was the first iteration ever built. Every designation has light or heavy coil, which means that system can fire a more or less heavy slug. There are numerous iterations of the MAC gun system, together grouped under a Mark or Series-based designation although both terms are equivalent, Mark is more common among naval officers and architects. The introduction of MAC guns became crucial when Human-Covenant War started, as it was the only conventional weapon capable of penetrating Covenant ship's shields at long distance. Major redesign and more studies led them to the born of the Magnetic Acceleration Cannon, an official name gave to every large coilgun built in a ship's superstructure, as opposed to coilgun batteries which were more but built onto the hull, smaller, with a shorter range and less powerful. However, the power required was much more massive than that required by coilgun batteries, besided many naval officers weren't so much happy because this large coilgun was supposed to be built around a ship's superstructure, thus forcing ship to be aligned itself to the target in order to fire though, this coilgun could fired a slug farther than coilgun batteries, so increasing range.
After the Domus Diaspora, however, propulsion systems became far more powerful, thus allowing the widespread use of coilguns batteries, however they remained a secondary armament.Īround 2450 new study arose a large coilgun, which could fired hundrends of tons slugs at tens of kilometers.
Since coilgun batteries improved reliability, they still fired too slow unguided slugs, as compared to missiles which also were self-guided. However, coilguns were always seen as the ultimate step - before energy weapons - as they needn't rails to accelerate a slug at kilometres per hour.Īs interplanetary and interstellar travels became common, coilgun batteries became far more common, but they didn't supplant guided missiles at all for a number of reason: a too short range, propulsion systems not adequate to power coils and lacking of both reliability and tracking systems. Smaller coilgun batteries were employed since the Interplanetary War aboard starships before than, national surface navies used guided missile systems, before turned to railguns in the mid-21 th.