The Defense Department is looking to step up its development of hypersonic weapons — missiles that travel more than five times faster than the speed of sound — DOD leaders said at the National Defense Industrial Association-sponsored “Hypersonics Senior Executive Series” here today.
“In the last year, China has tested more hypersonics weapons than we have in a decade,” said Michael Griffin, undersecretary of defense for research and engineering. “We’ve got to fix that.”
Russia also is involved in hypersonics, Griffin said. “Hypersonics is a game changer,” he added.
If Russia were to invade Estonia or China were to attack Taiwan tomorrow, Griffin said, it would be difficult to defend against their strike assets. “It’s not a space we want to stay in,” he told the audience.
DOD is looking at air-breathing boost-glide hypersonics systems, the latter being used by China, Griffin said. The United States has the boost-glide system competency to get these developed today, he noted.
On the flip side, he said, the U.S. needs to develop systems to counter adversary hypersonics. The place to take them out is in their relatively long cruise phase, in which they don’t change course suddenly. It’s not a particularly hard intercept, he said, but it requires knowing they’re coming. Current…