abstract
| - Rail Weapons use a series of powerful electromagnets and super-conductive electrodes to accelerate small, solid and conductive projectiles to hypersonic speeds. The resulting high levels of kinetic force imparted to the weapon's projectile allows it to devastate and destroy the most heavily armoured vehicles on impact, even at extremely long ranges. Few vehicles are able to withstand a direct hit from a Rail Weapon without suffering critical damage. Because the projectile is capable of achieving a velocity of anywhere between six and ten times the speed of sound, it generates a tremendous force when it strikes its target that is often far more than would be produced by an explosive charge of the same size. As such, the speed of the projectile is enough to punch through virtually any amount of armour. The size of the weapon determines the strength of its power source and thus the kinetic force imparted to the type of projectile used as ammunition. Rail Weapons usually fire single, solid projectiles and rely on the projectile's speed to penetrate armour, even at long ranges. Because the projectiles are so small, large numbers can be carried by the weapon's operator at a time. However, when used against infantry, a Railgun can have a devastating effect in which the impact of the round will simply vaporise the target. Those near the travelling path of the projectile will also literally find the breath sucked out of their lungs, such is its speed. A Railgun makes an iconic "whip-crack" sound when it fires, which is created when the Railgun's round breaks the sound barrier. Many enemy soldiers have learned to dread its distinct noise, which is only heard after the round has already hit home. The basic physical principle behind Rail Weapon technology is well known to the Adeptus Mechanicus, but the Imperium has never been able to utilise it in a worthwhile form due to the myriad of issues inherent in the operation of such weapons. The limitations of such technology include the staggering amount of power required to propel the projectile along the rail, and the dissipation of the heat generated by the process. The Tau appear to have implemented solutions to these problems, and many Hereteks amongst the Adeptus Mechanicus would very much like to understand how this was accomplished.
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