This sled is traveling at 6,599 mph (Mach 8.6) in the video and was several miles away from the camera when it began. So it's covering over a mile roughly every second. (Video by edwardsairforcebase) #hypersonic #airman #airforce #aviation #flight #plane #jet #jets #airpower #aerial #pilot #pilots #fighterjet #military #aimhigh #american #militarytest