Project X-33

Image credit: NASA DFRC
Image source: NASA Images

ED97-43938-3

Image credit: NASA DERC
Image source: NASA Images

Recoverable Atlas Booster

Image credit: Convair
Image source: SDASM Archives

Four Space-Shuttle Concepts

Here are examples of tentative designs for a space shuttle, made public by members of the four industrial teams competing in the project:

  1. McDonnell Douglas/Marietta
  2. Boeing/Lockheed
  3. North American/General Dynamics
  4. Grumman Aerospace

Each of pictured space-shuttle versions is a composite craft consisting of two stages, a booster and an orbiter, and is launched vertically like a space rocket, as shown. It’s two stages separate in space, and both return to earth for re-use.

Image credit: Robert McCall
Text and Images: Popular Science

S71-38215

Concept shows the Shuttle in flight, heading toward separation of the Booster and the Orbiter at about 40-mi. altitude.

Image credit: Grumman
Image source: Internet Archive