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
-
![Raytheon will develop an advanced naval sensing and targeting system for DARPA]()
Raytheon will develop an advanced naval sensing and targeting system for DARPA
RTX’s solution for DARPA’s Pulling Guard programme is intended to provide advanced maritime defence technologies to protect platforms against uncrewed surface vehicles and other threats.
-
![Spain’s F100 upgrade mirrors Aegis modernisation paths in allied navies]()
Spain’s F100 upgrade mirrors Aegis modernisation paths in allied navies
The Spanish Navy’s Alvaro de Bazan-class of air defence frigates will receive the latest Aegis Weapon System technology among other modernisations to extend the service life to 2045.
-
![UK’s Fleet Solid Support ship programme deemed on track despite steel supply concerns]()
UK’s Fleet Solid Support ship programme deemed on track despite steel supply concerns
Shipbuilders are saying the programme is going ahead on time as the government estimates 7.7 million tonnes of steel are needed for 2026 infrastructure projects.
-
![Raytheon unveils details of its proposal for the US Navy/NATO ESSM Next Significant Variant]()
Raytheon unveils details of its proposal for the US Navy/NATO ESSM Next Significant Variant
In an exclusive interview with Shephard, Raytheon’s VP of Shipboard Missiles disclosed what improvements the company plans to offer for the Sea Sparrow NSV.
