From: spamhere@dev.null.retro.com   
      
   kellyst@aol.com (Kelly St) writes:   
      
   >>> Manfred Bartz  wrote in message :   
      
   >>I referred to the ET only.  You claim 33% for ET + SSMEs,   
   >>structures, retrofits.  How much of those 33% do you think can be   
   >>attributed to the ET only?  Maybe 1% ?   
   >   
   > If memory serves, the ET's weigh about 30 tons.   
      
   We are talking about the design effort, not the mass.   
      
   > On the other hand if you want to build a expendable, the ET tank adn   
   > tank sections can be built on a existing facility adn gigs, and are   
   > inreasonable strung.   
      
   It may be strong, but it is designed to take the thrust on the   
   inter-tank cross-beam, not on the bottom end of the O2 tank.   
   That is why I suggest a redesign based on the ET is a non-starter.   
      
   --   
   Manfred Bartz   
   ----------------------------------------------------------------------   
   The future is here it is just not evenly distributed -- William Gibson   
      
   --- SoupGate-Win32 v1.05   
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