Japan Is Taking A Two-Step Approach To Fielding Its First Operational Hypersonic Weapons

October 19, 2018

The Drive:

Japan is reportedly pursuing development of two hypersonic weapons using different boost-glide vehicle warheads. The plan could offer the Japanese military game-changing capabilities to deter its regional opponents, primarily China in the East China Sea, and is also the latest signal that the country is moving away from its pacifist post-World War II constitution.

On Oct. 15, 2018, Japan’s Mainichi Shimbun newspaper, citing unnamed sources, said the country’s Ministry of Defense had crafted the hypersonic weapon plan with an eye toward having the initial system in service no later than 2026. The second type would hopefully arrive in 2028. The Japanese government first officially revealed it was working on what it calls the Hyper-Velocity Gliding Projectile (HVGP), in an annual defense white paper that came out in August 2018.

Hypersonic speed is defined as anything above Mach 5. Boost-glide vehicles, one of the most common hypersonic weapon designs, are unpowered and require some sort of booster to get them to the appropriate speed and altitude, after which they glide back down to earth. Ballistic missiles, or derivatives thereof, have traditionally served as the launch platform for these systems.

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Curtis Stiles - Chief of Staff