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NASA Drops Requirement For Methane Engine From CEV
Posted on: Jan. 12th, 2006 || www.aviationweek.com

Congressional pressure to avoid a gap in U.S. human space access is behind a NASA push to accelerate the first piloted flight of the planned Crew Exploration Vehicle (CEV).

While President Bush originally wanted an operation CEV by 2014, the final RFP for the shuttle replacement called for a first flight with crew "as close to 2010 as possible, but no later than 2012, without compromising safety." The new document also drops requirements for a LOX/methane engine on the CEV service module as a placeholder for future extraction of the fuel from the atmosphere of Mars, and for delivery of unpressurized cargo to the International Space Station, although nothing would prevent the winning team from proposing them, according to a program spokesman at Johnson Space Center.

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