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   sci.space.tech      Technical and general issues related to      3,113 messages   

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   Message 1,505 of 3,113   
   Joann Evans to Rick Jones   
   Re: SSTO propulsion overview   
   07 Feb 04 02:48:01   
   
   From: bondage@frontiernet.net   
      
   Rick Jones wrote:   
   >   
   > Gordon D. Pusch  wrote:   
   > > No, because even a _supersonic_ separation of two vehicles at any   
   > > significant atmospheric density is not merely difficult, but   
   > > outright =DANGEROUS= !!!  Attempting a separation at hypersonic   
   > > velocities, with every leading-edge surface experiencing absurdly   
   > > high dynamic pressures while glowing red to white hot, is an   
   > > exercise only for insane lunatics. Look it up near the top of the   
   > > list of "Stupid Things You Will Not Live Through If You Attempt."   
   >   
   > What was the atmosphereic density going to be for separation of HyperX   
   > (wasn't that the name of the hypersonic test vehicle that was to be   
   > boosted by a Pegasus dropped from a B52?)   
      
      
      I don't know, but by definition in this case, it has to be enough for   
   lift to occur and for airbreathing engines to function....   
      
   --   
      
      You know what to remove, to reply....   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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