The Aviationist on MSN

Going hypersonic: A look at the record-setting X-15

An important part of data collection for the United States space program, the North American X-15 had astonishing performance ...
National Security Journal on MSN

The Mach 6.7 X-15 ‘Hypersonic Rocket Plane’ Has a Message for the U.S. Air Force

The X-15 was a rocket-powered research aircraft that pushed human flight to the edge of space and deep into the hypersonic regime. -Air-launched from a B-52, three X-15s flew 199 missions between 1959 ...
autoevolution

Two NASA F-15 Jets Chase Each Other Over the Mojave Desert, Do Something Unprecedented

We've talked a lot over the past few years about the NASA X-59 experimental aircraft, and chances are that the number of new bits of info concerning the plane will only increase in the coming months.
FlightGlobal

NASA reveals details of X-59’s first flight, describes programme as ‘validation’

NASA has disclosed further details of its X-59 Quesst supersonic demonstrator's maiden flight on 28 October, marking the ...
UPI

NASA's X-59 moves under its own power

July 22 (UPI) --NASA's quest for a quieter supersonic jet passed an early test after its X-59 aircraft was able to taxi at low speed at a manufacturing plant in California. The space agency on Tuesday ...