Orion PDR Press Event: 2 Year Slip If Ares 1 Cancelled

Orion passes milestone, but do problems loom?, Orlando Sentinel
“NASA announced Tuesday that the manned capsule it plans to send to the moon has passed an early internal review with unanimous support. But the good news about Orion came with a caveat. If Orions companion rocket — dubbed Ares 1 — is spiked in favor of another rocket, then any Orion mission would be delayed by up to two years so engineers could fit a new rocket to the capsule.”
NASA’s Orion Spacecraft Passes Significant Design Milestone
“NASA has taken a major step toward building the next crew exploration vehicle by completing the Orion Project’s preliminary design review, or PDR. Orion is being designed to carry astronauts to the International Space Station and other destinations. The preliminary design review is one of a series of checkpoints that occurs in the design life cycle of a complex engineering project before hardware manufacturing can begin. As the review process progresses, details of the vehicle’s design are assessed to ensure the overall system is safe and reliable for flight and meets all NASA mission requirements.”