Designed and built with slide rules.
Said it before on SR threads but my kid was a Jet mechanic on the 117, 22 and 35. A few years back she took me to one of the museums with a 71. She never saw one in person. They had an engine on a display stand.
Blew her mind. The whole plane did.
SR-71! Fascinating photos!
http://sploid.gizmodo.com/fascinating-photos-reveal-how-they-built-the-sr-71-blac-1683754944
Transporting the SR-71 to Nevada by trucks. Skim down to photos!
http://roadrunnersinternationale.com/transporting_the_a-12.html