Here is a tribute from one of the test flights
https://airlive.net/live-last-ever-built-jumbo-jet-is-drawing-a-747-in-the-sky/
30 years @ Rockwell/ Boeing SoCal.
Had to go from rockets that shook the earth to planes that flew slow, I got over it.
X-37 was my favorite program. Airframe was not classified, Payloads is another story.