What Happened To The Boeing 747s That Flew The Space Shuttle?

With its unique design, the Boeing 747 is an aesthetically-striking aircraft in its own right. However, two of these iconic double-decker quadjets became perhaps even more conspicuous following the end of their passenger services. Of course, I am referring to the two 747-100s that NASA converted for use as ‘Shuttle Carrier Aircraft’ in the 1970s and ’80s. But what happened to these legendary outsize freighters? (simpleflying.com) Ещё...