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The Navy plans to fire 5-inch diameter non-explosive projectiles from deck-mounted railguns:
The Navy plans to fire a high-speed, long-range rail-gun Hypervelocity Projectile from its deck-mounted 5-inch guns to destroy enemy drones, ships, incoming missiles and even submarines, service officials said.
The effort is led by a special Future Naval Capability program.
Navy officials say the program is leveraging commercial electronics miniaturization and computational performance increases to develop a common guided projectile for use in current 5 inch guns and future high velocity gun systems. The HVP effort will seek to increase range and accuracy of the 5-Inch Gun Weapon System in support of multiple mission areas, service developers told Warrior.
Developed initially for an Electromagnetic Rail Gun next-generation weapon, The Hyper Velocity Projectile, or HVP, can travel at speeds up to 2,000 meters per second when fired from a Rail Gun, a speed which is about three times that of most existing weapons.
BAE Systems Hyper Velocity Projectile. 5-inch gun. Found at NBF.
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U.S. Navy's New Mach 6 Electro-Magnetic Railgun Almost Ready for Prime Time
(Score: 0) by Anonymous Coward on Thursday October 26 2017, @04:04PM (1 child)
Ignoring your misreading of the issue (see other comment)...
How about a disposable conductive liquid oozing from the rails? The obvious is a really thin layer of seawater. The projectile glides on the water. The water boils off, removing the heat as it does.
Accuracy is no trouble with guided ammo, which I think these are. (slightly, like a guided artillery or mortar shell)
(Score: 2) by bob_super on Thursday October 26 2017, @04:28PM
> The obvious is a really thin layer of seawater. The projectile glides on the water. The water boils off,
Leaving behind salt, which you have to wash off quickly before it destroys everything.