新型攔截飛彈：日美聯合開發GPI飛彈
・日本採用諾斯羅普格魯曼公司的計劃
・殺傷車的推進系統和主火箭引擎由日本製造
我們將為您提供時事出版社發表的文章摘要。
Japan’s Ministry of Defense: November 1st
Japan and the US will jointly develop a glide-phase interceptor (GPI) missile for intercepting hypersonic weapons.
The Ministry of Defense has awarded Mitsubishi Heavy Industries a contract for 56 billion yen as the Japanese development company.
The contract amount is 56,045 million yen, with a delivery date of March 2029. The aim is to complete development in the 2030s.
https://news.yahoo.co.jp/articles/ada31e58823cdd342cd30fef683a107749028da0
Japan and the US agree on development plan: October 26
Northrop Grumman has been selected as the US developer of the new interceptor.
On the 26th, the Ministry of Defense and the Department of Defense agreed to adopt Northrop Grumman’s plan for the joint development of the GPI (gliding phase interceptor).
The GPI interceptor has three stages:
1. Japan will be responsible for the propulsion system of the interceptor, called the “kill vehicle” at the warhead,
2. Japan will be responsible for the rocket motor, which will be the propulsion system for the missile body.
GPI (gliding phase interceptor guided missile):
Japan: Developed by Mitsubishi Heavy Industries
This will be jointly developed by Japan and the United States as a hypersonic weapon interceptor missile to be operated with the Aegis system.
Mitsubishi Heavy Industries has been selected as the Japanese company to develop the GPI (gliding phase interceptor guided missile).
US: Developed by Northrop Grumman
On September 26th, Northrop Grumman was selected as the company to develop the GPI in the US.
This means that the main company in charge of the Japan-US GPI project has been decided.
Japan-US GPI: Diagram of development division
1. On November 1st, the Japanese Ministry of Defense announced,
2. An explanatory diagram of the division of labor between Japan and the U.S. for the development of the GPI was presented.
The basic components of the GPI have been clarified.
The division of labor between Japan and the U.S. for the development of the GPI:
However, the form of the GPI guided missile is currently an estimate.
1. First stage booster:
Existing equipment from the U.S. will be used. Made in the U.S.: Mk72 booster will be used.
2. Second stage rocket motor:
Japan will be responsible for all parts. Steering system: Made in Japan (aerodynamic steering fins)
3. Third stage rocket motor:
The U.S. will be responsible for the main parts.
Third stage control system: The use of Japanese-made thrust vector control has yet to be decided.
Kill vehicle (interceptor warhead):
The U.S. will be responsible for the main parts of the kill vehicle.
1. Exterior: U.S.
2. Guidance control system: U.S. (including software)
3. Seeker: U.S. (infrared image camera)
4. Steering system: Japan (※Aerodynamic control surface)
5. Rocket motor: Japan (※TVC)
6. Seeker window: Japan (※Heat-resistant sapphire glass window)
Some unclear points are marked with *.
https://news.yahoo.co.jp/expert/articles/d6dbf1611bd1605deeca0a8015a291fd056eee02