[20220505]IF11459_防务基础：高超声速助推滑翔武器.pdf

https:/crsreports.congress.gov Updated May 5, 2022Defense Primer: Hypersonic Boost-Glide WeaponsThe U.S. Department of Defense (DOD) is pursuing two types of hypersonic weapons technologies: boost-glide systems that place a maneuverable glide vehicle atop a ballistic missile or rocket booster, and cruise missiles that would use high-speed, air-breathing engines known as scramjets to travel to hypersonic speeds. This In Focus addresses only the first of these technologies. The Pentagons FY2023 budget request for hypersonic-related research is $4.7 billionup from $3.8 billion in the FY2022 request. This increased funding and statements from Pentagon officials demonstrate growing support for weapons that could attack priority targets promptly and with improved accuracy without facing defeat by an adversarys air or missile defense systems. Pentagon officials have also expressed concerns about advances in hypersonic weapons technologies in Russia and China, and on the potential threats to U.S. forces, allies, and territory. Characteristics of Hypersonic Glide Vehicles Hypersonic glide vehicles (HGVs), like all weapons delivered by medium- and longer-range rocket boosters, can travel at