BAE has developed a 32 megajoule railgun and is promising bigger and better:
The device operates similarly to previous railguns, using electric force to propel a nonexplosive solid projectile along a series of magnetic rails. The device requires a staggering 3 million amps of power to fire.
Incredibly, the device is only the initial offering from BAE. It hopes to soon meet the Navy's goal of a 64-megajoule weapon capable of being mounted on a warship. Such a weapon would draw a current of approximately 6 million amps.
With such high power requirements, such a design is technically feasible when placed on a nuclear-powered vessel. Dr. Amir Chaboki, program manager for Electro-Magnetic Rail Guns at BAE Systems, states, "The power is available. The challenge is how you use it."
Chaboki believes the ideal ship platform would be the Navy's electrically propelled DDG 100 Destroyer, which has an operating power of 72 MW, approximately.
Just mount mine on my flying car.
My brother Nick wonders how long it will be before we see Arnold wielding this in Terminator 4.