Hyper Velocity Gliding Projectile (HVGP) (島嶼防衛用高速滑空弾, Tōsyobōeiyō-kōsoku-kakkūdan) is a Japanese hypersonic glide vehicle being intended to be used as a hypersonic weapon in defending of remote islands.
Design and capabilities
The HVGP is designed as a standoff missile capable of attacking enemy forces invading remote islands in Japan from outside the enemy weapon engagement zone. The development of the HVGP is based on an incremental approach, with Block 1 being developed as an early version based on existing technology, followed by the development of a performance-enhancing Block 2. Both of them are designed for launch using a solid-propellant rocket booster, with the projectile separating from it at a high altitude and then gliding at hypersonic speeds until impact. In Block 2, glide performance will be further improved by introducing waverider technology.
Projectile guidance would be primarily provided by satellite navigation, with inertial navigation system as a backup. Radio-frequency imaging and infrared homing would also be used for guidance when engaging moving targets. Special armour-piercing ammunitions, capable of penetrating the deck of aircraft carriers, are used to attack ships, and high-density explosively formed projectiles (EFPs), capable of area suppression, are used to attack ground targets.
The range of Block 1 was estimated to be around 300–500 km (160–270 nmi), but in order to provide a second strike capability, the range in Block 2 was increased to 3,000 km.
Deployment
The plan is to complete the development of Block 1 by FY2025 and begin deployment in FY2026, and to begin deployment of Block 2 in the 2030s, deploying two battalions in the Japan Ground Self-Defense Force. These batteries are being considered for deployment in Hokkaido and Kyushu.
The development of a submarine-launched version is under consideration, reportedly.
References
Citations
- "Joint Systems Development Division", Acquisition, Technology & Logistics Agency, retrieved December 17, 2022
- ^ Dominguez 2022.
- ^ Fuse 2020, pp. 216–217.
- ^ Ministry of Defense (December 2022), 防衛力整備計画 [Defense Buildup Program] (PDF) (in Japanese)
- ^ Yeo 2020.
- ^ Matsuyama 2022.
- "防衛省「高速滑空弾」部隊新設へ 九州と北海道に配備を検討" [Ministry of Defense to establish a new "Hyper Velocity Gliding Projectile" unit, considering deployment in Kyushu and Hokkaido.], NHK News (in Japanese), December 10, 2022
- "「反撃能力」保有へ、長射程ミサイル同時開発を検討…極超音速など１０種類以上" [To possess "counterattack capability," simultaneous development of long-range missiles is being considered], Yomiuri Shimbun (in Japanese), December 1, 2022
General and cited references
- Dominguez, Gabriel (July 26, 2022), "Japan advances hypersonics research with combustion flight test", The Japan Times
- Fuse, Satoshi (2020), 先端技術と米中戦略戦争－宇宙、AI、極超音速兵器が変える戦い方 [Advanced Technology and the U.S.-China Strategic War: Space, AI, and Hypersonic Weapons Changing the Game] (in Japanese), Shuwa System Co., Ltd, ISBN 978-4798062242
- Matsuyama, Naoki (December 27, 2022), 敵基地攻撃の長射程ミサイル、「5年後」「10年後」と段階的に配備 [Standoff missiles for enemy base attack will be deployed in phases of 5 and 10 years.], Asahi Shimbun (in Japanese), archived from the original on December 27, 2022, retrieved December 27, 2022
- Yeo, Mike (March 14, 2020), "Japan unveils its hypersonic weapons plans", Defense News
| Japan Self-Defense Forces missiles | |
|---|---|
| Air-to-air missiles | |
| Air-to-surface missile | |
| Anti-tank missile | |
| Surface-to-air missile | |
| Surface-to-surface missile | |
| Anti-submarine missile | |