Army putting pieces together for cannon that fires hypervelocity projectiles for battlefield air def

[rangerrebew]

Army putting pieces together for cannon that fires hypervelocity projectiles for battlefield air defense
July 23, 2024
The HGWS is to be a small, flexible hypervelocity projectile able to shoot from an Army M144 155-millimeter howitzer and Navy 5-inch deck guns.
 
THE MIL & AERO COMMENTARY – U.S. Army aerial defense experts are working with industry to develop a hypervelocity gun system able to destroy or disable high-priority targets like incoming missiles or mobile weapons launchers.

The future Hypervelocity Gun Weapon System (HGWS) will have three primary parts -- a special 155-millimeter cannon able to withstand the pressures of launching munitions at hypersonic speeds; a hypersonic artillery shell with precision guidance; and a radar system able not only to detect incoming threats, but also to communicate with the hypersonic artillery shell to guide it to its targets.

Army experts got the project started in early July by issuing requests for information for the Hypervelocity Projectile (HVP); the Multi-Domain Artillery Cannon (MDAC); and the Multi-Function Precision Radar (MFPR). Industry was asked to respond to these initial requests for information by 24 July 2024.

https://www.militaryaerospace.com/sensors/article/55127689/hypervelocity-cannon-air-defense

[Smokin Joe]

Wait. Wasn't the Zumwalt supposed to have a railgun with guided munitions which were prohibitively expensive? (IIRC, $800K a round). Since miniaturization usually costs more, are these rounds going to be prohibitively expensive, too?

I 'get' that the right round in the right place can end a war, and it is hard to put a price on that, but that is as much opportunity as execution, as much intel as delivery. (A P-38 shooting down Yamamoto's 'Betty' bomber, for instance-of the 16 on the operation.)