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Work in progress
NASA officials are now looking at ways to speed up the development of Ares and are reluctant to discuss specific problems. But they insist none is insurmountable.
"There are always issues that crop up when you are developing a new rocket and many opinions about how to deal with them," said Jeff Hanley, manager of the Constellation program, which includes Ares, the first new U.S. rocket in 35 years.
"We have a lot of data and understanding of what it's going to take to build this."
Still, Ares' woes have created unprecedented rifts inside the agency.
Now several engineers are speaking out, saying Ares should be canceled because it's expensive and potentially dangerous.
"It's time for a rethink," said Jeff Finckenor, an award-winning NASA engineer who last month quit the Ares program in frustration over the way the program is being managed.
Internal documents and studies obtained by the Orlando Sentinel appear to support concerns expressed by Finckenor and others. Nonetheless, NASA's leaders maintain that Ares will be ready for launch in 2015.
"At the highest levels of the agency, there seems to be a belief that you can mandate reality, followed by a refusal to accept any information that runs counter to that mandate," said Finckenor, whose farewell letter to his colleagues denouncing NASA management was posted (without his permission) on NASAWatch.com, an independent Web site.
The Sentinel reviewed more than 800 pages of NASA documents and internal studies and interviewed more than a dozen engineers, technicians and NASA officials involved with the project. Most, fearing retribution from NASA management, spoke on condition that their names would not be used.
All agreed that, eventually, NASA would be able to get Ares I to fly. The real question, they said, is whether the agency will be able to build it on time and on budget. What's more, they said, it will never be the robust, simple rocket that NASA intended.
"If they push hard enough, yes, it will fly," said one NASA engineer working on Ares. "But there are going to be so many compromises to be able to launch it, and it will be so expensive and so behind schedule, that it may be better if didn't fly at all."
NASA had to quell near-revolts by astronauts and scientists who last month took issue during a preliminary design review of Ares I. In the end, they were cajoled into backing the review.
The review graded the rocket against 10 criteria from NASA's program-management handbook. Seven of the marks were the equivalent of a C or a D. Overall, the project earned a grade-point average of 2.1, a low C.
The reasons for the low grades included concerns that its electronics and control systems could be shaken apart on liftoff and the launch-drift issue.