This is my favourite airplane of all time, I mean just look at it! It could do mach 3.2 at 85000 feet, the fastest airplane to this day.
This video from the entertaining Thoughty2, is a short history of its development which, incredibly, started in the late 1950s as the A-12 that was then upgraded to the SR-71. There's much more detail available on the web, or in books.
en.wikipedia.org
en.wikipedia.org
This video from the entertaining Thoughty2, is a short history of its development which, incredibly, started in the late 1950s as the A-12 that was then upgraded to the SR-71. There's much more detail available on the web, or in books.

Lockheed A-12 - Wikipedia
