>a crewmate from the engineering department remarked that it had been moving “faster than the speed of sound, underwater.”
"Trump bragged about a weapon that doesn't appear to actually exist to a cheering crowd in Georgia"
"President Donald Trump told a cheering crowd in Georgia that the US has both "hypersonic" and "hydrosonic" missiles. "Brand new missiles and rockets, hypersonic missiles. We have hypersonic and hydrosonic," Trump said in Valdosta. "You know what hydrosonic is? Water."
"We have them all," he continued. "We have missiles that can go seven times faster than any missile in the world." "
https://www.businessinsider.in/politics/world/news/trump-bragged-about-a-weapon-that-doesnt-appear-to-actually-exist-to-a-cheering-crowd-in-georgia/articleshow/79595732.cms