Five flight-worthy orbiters were constructed for the program:
The Space Shuttle, officially known as the , was the world’s first partially reusable spacecraft, operating from 1981 to 2011. Over 30 years, the program flew 135 missions , launched 355 people from 16 countries, and traveled more than 542 million miles.
: A prototype used for atmospheric flight tests; it never flew in space but is currently on display at the Intrepid Sea, Air & Space Museum. How It Worked The Space Shuttle
The Shuttle system consisted of three primary components that worked together for launch:
: The "workhorse" of the fleet, it flew 39 missions, including the launch of the Hubble Space Telescope. How It Worked The Shuttle system consisted of
40 Years Ago: Space Shuttle Enterprise rolls to the Pad - NASA
: The first shuttle to fly into space in 1981; tragically lost during re-entry in 2003. it flew 39 missions
: Flew the final mission of the program (STS-135) in July 2011.