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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: 2) by mhajicek on Thursday October 26 2017, @05:07PM
I think what you're describing would classify as "fusing", and guidance would refer purely to steering or course correction. I recall reading about how proximity fuses reduced the number of rounds needed to down an aircraft by an order of magnitude in WWII. That was pretty impressive tech for the day. There's also a guided .50 BMG round now.
The spacelike surfaces of time foliations can have a cusp at the surface of discontinuity. - P. Hajicek