The Japan Ground Self-Defense Force (JGSDF) plans to deploy a Hyper-Velocity Gliding Projectile (HVGP) in fiscal year 2026 as a new weapon to repel enemies that invade Japan's remote islands, from a safe distance. This HVGP could even target large surface ships such as aircraft carriers.
The Japan Maritime Self-Defense Force (JMSDF) commissioned its 11th Soryu-class diesel-electric attack submarine (SSK) in Kobe in Hyogo Prefecture on March 5, 2020. JS Ōryū (SS-511) joins the JMSDF’s Submarine Flotilla 1, based in Kure. It is the first-in-class boat to feature lithium-ion batteries.
sorta related isJapan mulls anti-aircraft carrier gliding missiles for remote island defense
February 25, 2020
18.5 billion yen (spent in last two years according to that article) is about $168m, so let's wait and see what this money buy, and let's wait and see if they pour in additional money
I found a similar article at Defense news.com;
I looked into ATLA website but was not able to find the same chart but I did find some interesting pages there as well.Japan unveils its hypersonic weapons plans
MELBOURNE, Australia — Japan has outlined its research and development road map for its homegrown, standoff hypersonic weapons, confirming that it is seeking an incremental growth in capability and providing more details about the kinds of threats it is targeting with this new class of weapon.
In a Japanese-language document published on the Acquisition, Technology and Logistics Agency website, the government said two classes of standoff hypersonic systems will be deployed — the Hypersonic Cruise Missile (HCM) and the Hyper Velocity Gliding Projectile (HVGP).
The former will be powered by a scramjet engine and appears similar to a typical missile, albeit one that cruises at a much higher speed while capable of traveling at long ranges.
The HVGP, on the other hand, will feature a solid-fuel rocket engine that will boost its warhead payload to a high altitude before separation, where it will then glide to its target using its altitude to maintain high velocity until impact.
The agency also provided more details regarding warhead payloads, with different warheads planned for both seaborne and land targets. The former will be an armor-piercing warhead designed specifically for penetrating “the deck of the [aircraft] carrier,” while a land-attack version will utilize a high-density, explosively formed projectile, or EFP, for area suppression....... to read further,