What are Coil Guns?

Aug. 27, 2023

The Chinese navy is reportedly testing the planet's most powerful coil gun.

About Coil Guns:

  • It is a type of electromagnetic weapon capable of launching projectiles with extremely high speed in the blink of an eye.
  • They are also known as Gauss guns or magnetic accelerators. 
  • It operates on the principle of electromagnetic induction, applying the principles of electromagnetism to propel a projectile.

How does it Work?

  • Coil guns feature a series of coils arranged along the barrel of the gun, each one constituting a stage. 
  • Each coil is energised one after another to create a magnetic field that can levitate and propel a projectile forward.
  • The projectile typically stays suspended in the centre of the coil during launch. 
  • The larger a coil gun, the better its ability to fire projectiles similar to those fired by traditional artillery. 

Projectile:

  • The projectile used in a coil gun is typically a ferrous or magnetic object, such as a steel ball or a specially designed ferromagnetic projectile. 
  • This projectile needs to have magnetic properties to interact with the electromagnetic fields generated by the coils.

Advantages over traditional artillery:

  • Higher launch speeds and a shorter preparation time. 
  • Coil guns do not use gunpowder or other chemical propellants, which means they produce no combustion byproducts.
  • High Precision: They can be highly accurate due to the precise control over the electromagnetic coils.
  • Low Recoil: They have much lower recoil compared to firearms.