NASA estimates $49 billion for Ares I/Orion but not sure

NASA is still struggling to develop a solid business case—including firm requirements, mature technologies, a knowledge-based acquisition strategy, a realistic cost estimate, and sufficient funding and time—needed to justify moving the Constellation program forward into the implementation phase. Gaps in the business case include

/-- significant technical and design challenges for the Orion and Ares I vehicles, such as limiting vibration during launch, eliminating the risk of hitting the launch tower during lift off, and reducing the mass of the Orion vehicle, represent considerable hurdles that must be overcome in order to meet safety and performance requirements; and

/-- a poorly phased funding plan that runs the risk of funding shortfalls in fiscal years 2009 through 2012, resulting in planned work not being completed to support schedules and milestones. This approach has limited NASA’s ability to mitigate technical risks early in development and precludes the orderly ramp up of workforce and developmental activities.

In response to these gaps, NASA delayed the date of its first crewed-flight and changed its acquisition strategy for the Orion project. NASA acknowledges that funding shortfalls reduce the agency’s flexibility in resolving technical challenges. The program’s risk management system warned of planned work not being completed to support schedules and milestones. Consequently, NASA is now focused on providing the capability to service the International Space Station and has deferred the capabilities needed for flights to the moon. Though these changes to the overarching requirements are likely to increase the confidence level associated with a March 2015 first crewed flight, these actions do not guarantee that the program will successfully meet that deadline. Nevertheless, NASA estimates that Ares I and Orion represent up to $49 billion of the over $97 billion estimated to be spent on the Constellation program through 2020. While the agency has already obligated more than $10 billion in contracts, at this point NASA does not know how much Ares I and Orion will ultimately cost, and will not know until technical and design challenges have been addressed.