NASA To Evaluate Non-recoverable First Stage for Ares I Launch Vehicle | 
SpaceRef - Your Space ReferenceReader comment at end adds interesting 
perspective.

        http://www.spaceref.com/news/viewnews.nl.html?id=1177

Weight savings of 20,000+ lbm quoted if 1st stage SRB is made expendable 
rather than, as at present, recoverable. This is a 5 segment version of the 
present STS 4 segment SRBs.

You'd have to be keen ... * :-)

With this mod it may even be almost able to orbit the CEV :-(.



            Russell McMahon

* triggers furious debate re relative safety of SRB solids vs liquids / 
reusable vs expendable / ... :-)


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