BBCNEWS BBC News September 29, 2021 02:10:00
Test dash might a successful test dash might a successful test by the us of its own hypersonic missile, the so—called air breathing hypersonic weapon capable of speeds five times the speed of sound, making it harder to detect and stop before reaching its target. i spoke to doctor mark lewis, a former chief scientist of the us air force about why the new technology is so sought after. hypersonics refers to flight in excess of five times the speed of sound, what we call mach five. it is much faster than most conventional weapons. a traditional cruise missile would travel less than the speed of...
Source: archive.org