Thats way past Mach 5, which NASA defines as five times faster than the speed of sound
Yeah, it is 'ONLY' NASA that defines Mach 5 as 5x of sound, not anybody else! Grrr!
On a related point, Mach 5 is the bottom limit of what is generally referred to as the hypersonic speed range, so in other words Mach 5 is seriously fast! Anybody care to wager what tasks the PRC is running on their world speed record (former) computer? It is not just for coal pollution tracking!