National Security Journal on MSN

At 2,071 mph, Boeing’s 2707 was faster and bigger than Concorde — Congress killed it in 1971 by 1 vote and no American SST has flown since

Boeing’s 2707 supersonic transport was designed to fly at Mach 2.7 — 2,071 miles per hour — carrying up to 277 passengers, ...

Engineers at NASA’s Jet Propulsion Lab make a breakthrough in rotor technology

A little more than three years since NASA’s Ingenuity helicopter ended its pioneering mission at Mars, engineers at the Jet ...
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 ...