It still amazes me that it was designed without the aid of computers, and flew routinely. How can an aircraft fly for 25 years at 15 miles high and 2000 miles per hour?
Simple - It was designed by a group of very talented and imaginative people led by Kelly Johnson and was maintained in the field by dedicated technicians who realised their part in the grand picture.
A tribute to the Skunk Works, the flight crews and the ground crews:






Pictured is the Alphasim SR-71 for FS9 and the Beale AFB is a side project of mine which is not quite ready for release yet.