From: fairwater@gmail.com   
      
   schillin@spock.usc.edu (John Schilling) wrote:   
      
   >Also, this being sci.space.tech, one has to think in terms of using the   
   >scramjet as part of a space launch system.  In which case, you're going   
   >to need the rocket *anyway*, as scramjets can't get you more than half   
   >way to orbit.  If your scramjet space launch system absolutely has to   
   >include a rocket good for boosting halfway to orbit, and it does, you   
   >probably want to try real hard to use that same rocket to get up to   
   >scramjet operating speed from the start, rather than adding a third   
   >propulsion system to the mix.   
      
   The real question is...  Why add a *second* propulsion system in the   
   first place?  If you need a rocket to get from to the scramjet range,   
   and then a rocket to get from scramjet range to orbital range...  What   
   is the scramjet adding?   
      
   D.   
   --   
   Touch-twice life. Eat. Drink. Laugh.   
      
   -Resolved: To be more temperate in my postings.   
   Oct 5th, 2004 JDL   
      
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