Secretive US X-37B Space Plane Could Evolve to Carry Astronauts

""LONG BEACH, Calif. — The maker of the X-37B robotic space plane has outlined new plans for the spacecraft and a scaled-up version to support space station cargo deliveries or even carry astronauts into orbit.

The Boeing X-37B robotic space plane — also known as the Orbital Test Vehicle or OTV — is being operated by the U.S. Air Force Rapid Capabilities Office, toting top-secret payloads into Earth orbit.

An X-37B OTV and derivatives plan was outlined here by Arthur Grantz, chief engineer, Experimental Systems Group at Boeing Space and Intelligence Systems in Seal Beach, Calif. He spoke at Space 2011, a conference organized by the American Institute of Aeronautics and Astronautics (AIAA).""

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