National Security Journal on MSN
At 11,400 mph, NASA’s X-43D could have crossed the Atlantic in 18 minutes — 20 years after cancellation, it still has never flown
NASA’s X-43D was designed to fly at Mach 15 — roughly 11,400 miles per hour, fast enough to cross the Atlantic Ocean in 18 ...
National Security Journal on MSN
At Mach 6.7 and 4,520 mph, the X-15 set the crewed aircraft speed record in 1967 — 59 years later, no one has flown faster
On October 3, 1967, U.S. Air Force pilot William “Pete” Knight flew the X-15A-2 to 4,520 miles per hour — Mach 6.7 — setting ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results