Advanced Technology Cruise Missile

摘要

1. Research under wayrn2. U.S. studying new long-range strike missile designsrn3. New missiles could offer subsonic, supersonic, and hypersonic speedsrn4. U.S. may introduce more than one new missile between 2015 and 2030rn5. A hypersonic cruise missile may not appear until 2020 or 2030.