Tech Xplore on MSN

NASA's X-59 prepares for first supersonic flight

NASA's X-59 quiet supersonic research aircraft is preparing for some of its most significant flights yet. The X-plane is about to begin a new block of test flights that will include its first time ...
National Security Journal on MSN

Boeing’s X-32 stealth fighter has a message for the US Air Force and US Navy

Last year, National Security Journal traveled to see both of the two Boeing X-32 aircraft that still exist. One sits indoors ...
National Security Journal on MSN

The X-15 flew at 4,520 mph and 100,000 feet — no crewed aircraft has gone faster in the 59 years since

Summary and Key Points: On October 3, 1967, test pilot William “Pete” Knight flew the rocket-powered X-15 to Mach 6.7 — about 4,520 mph — a speed no crewed aircraft has matched in nearly 60 years.