Talk about Mach Speed! That's a great way to explain the progress we've made in such a short time between the first flight at Kitty Hawk by the Wright Brothers on December 17, 1903 until now - with the new 7.5 Mach HIFiRE Scramjet. Now, that's what I call progress! ^_^ (y)

Talk about Mach Speed! That's a great way to explain the progress we've made in such a short time between the first flight at Kitty Hawk by the Wright Brothers on December 17, 1903 until now - with the new 7.5 Mach HIFiRE Scramjet. Now, that's what I call progress! ^_^ (y) - An Australian-United States team reached one step close to hypersonic flight with their most recent flight achieving speeds at 5,710 MPH.