National Security Journal on MSN

Mach 9.6 X-43A ‘Hypersonic Scramjet’ Has a Message for Any Military on Earth

A, an unmanned scramjet testbed, set the world record for an air-breathing aircraft by hitting Mach 9.6 in 2004. -Launched ...
National Security Journal on MSN

Mach 6 SR-72 Darkstar Could Soon Be the ‘Fastest Plane on Earth’

SR-72 Could Soon Replace SR-71 As Fastest Plane Ever? Yes, the SR-71 Blackbird officially remains the fastest acknowledged ...
autoevolution

The Fastest Business Jet in History Hits a Dazzling New Record

When you're on top of the world, it would seem that there's nowhere higher to reach, but the Global 8000 proves us wrong. This spectacular speed monster, already officially confirmed as the fastest ...
The National Interest on MSN

Why Did the US Air Force Retire the SR-71 Blackbird?

The SR-71 Blackbird, the fastest aircraft ever built, was ultimately done in by the Air Force’s most notorious and ...