Tag "blackbird replacement"

Lockheed Martin has begun secret tests of Mach 6 SR-72 update to Blackbird spy plane

Lockheed Martin has begun secret tests of Mach 6 SR-72 update to Blackbird spy plane (0)

Lockheed Martin’s secretive Skunk Works unit is already testing a radical hypersonic update of the long-retired Mach 3 SR-71 Blackbird spy plane