Japan continues development of railguns, despite doubts over their effectiveness
This is a prototype of the 40mm-calibre railgun that Japan has been testing. (Photo: ATLA)
Japan continues to invest in railguns, even though questions remain over their practical utility.
Japan has developed a prototype medium railgun of 40mm calibre to research how to achieve higher initial velocity and longer barrel life.
This medium railgun can fire a projectile weighing 320g with an initial velocity of 2,230m/s (Mach 6.5). The rail’s endurance is more than 120 rounds, and the current charge energy is 5MJ, although Japan’s Acquisition, Technology & Logistics Agency (ATLA) is aiming for 20MJ in the future.
The ATLA's Ground Systems Research Centre (GSRC) began basic research on a small 16mm-calibre railgun in 1990.
Then, in May 2022, the GSRC concluded a JPY6.5 billion ($47.9 million) contract with Japan Steel
Already have an account? Log in
Want to keep reading this article?
More from Naval Warfare
-
![UK MoD’s confirmation of MBDA missile for Type 26 points to more European collaboration]()
UK MoD’s confirmation of MBDA missile for Type 26 points to more European collaboration
The Type 26 will also be fitted with the Sea Ceptor vertically launched air defence system that can fire CAMM missiles and a 24-cell Mk 41 vertical launch system that can fire the Tomahawk land-attack cruise missiles, anti-submarine rockets and long-range anti-ship missiles.
-
![Second Royal Canadian Navy Joint Support Ship is on schedule to be launched mid-2026]()
Second Royal Canadian Navy Joint Support Ship is on schedule to be launched mid-2026
While the first Joint Support Ship is currently in the final stages of outfitting, the second one is on schedule for launching next year.
-
![Is South Korea finally being taken seriously for Western submarine programmes?]()
Is South Korea finally being taken seriously for Western submarine programmes?
South Korean shipbuilders are beginning to make their mark beyond Asia, competing for major North American and European submarine programmes and becoming serious contenders on a global scale.
-
![AUKUS Pillar 2 could narrow focus to “four key areas” says UK official]()
AUKUS Pillar 2 could narrow focus to “four key areas” says UK official
Few concrete ideas have emerged so far on which “advanced capabilities” will be brought forward under Pillar 2 of the AUKUS partnership, but the Pentagon’s review of the programme could bring more clarity.
