From: nospam@nospam.com   
      
   In looking at a ramjet/scramjet diagram, it seems that the burnt gas would   
   want to go in both direction: towards both the inlet and the outlet. Since   
   there is no valve to prevent a back flow, why wouldn't this push the air out   
   of the inlet and stall the engine?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)