National Security Journal on MSN
The SR-71 Blackbird could hit Mach 3 but was almost cancelled
The legendary SR-71 Blackbird that broke every aviation record almost never got built. In the early 1960s, Secretary of ...
National Security Journal on MSN
In 1964, Lockheed Skunk Works Built a ‘SR-71’ Drone That Hit Mach 3 and 95,000 Feet — Many Drones Today Can’t Match It
The D-21B was the SR-71 Blackbird’s little brother—a Mach 3 spy drone built by Lockheed’s legendary Skunk Works division to ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results