日本（ATLA）：極超音速ミサイルシステム：milestones by the mid-2020s（動画）：
Japan’s ATLA engages MHI on hypersonic missile projects：
日本的ATLA与MHI合作进行高超音速导弹项目
日本の防衛装備庁（ATLA）：
三菱重工業（MHI）と提携し、極超音速ミサイルシステムを検討中。
A spokesperson from ATLA
– an agency under the Ministry of Defense (MoD) –
said the collaborative projects are geared towards meeting technology development milestones by the mid-2020s.
MHI’s Research & Innovation Center：
in Nagasaki operates a hypersonic wind tunnel, which is capable of simulating speeds beyond Mach 5.
MHI has not commented on its related projects with ATLA, however.