From: bondage@frontiernet.net   
      
   Michael J Wise wrote:   
   >   
   > On 2004-12-29 20:57:15 -1000, ilpolagerste@jippii.fi (Ilpo Lagerstedt) said:   
   >   
   > > Why not any first stage with LH2/LOX before Delta IV?   
   >   
   > What about the shuttle?   
   > The SSME's burn LH2/LOX.   
   >   
   > > Maybe this is a dump question too but I have always wondered that: How   
   > > much powerful Saturn 5 would have been LH2/LOX in the first stage?   
   >   
   > Well, first-off, as I understand it, the thing would be 2x the size, easily.   
   > LH2 is not exactly the densest of fuels.   
   >   
   > Aloha mai Nai`a.   
      
      
      I seem to recall some diagrams in Max Hunter's 1965 "Thrust Into   
   Space," suggesting that an all LH2/LOX Saturn-equivalent would've been   
   somewhat lighter, but approxamately the same volume.   
      
      (An all LH2/fluorine launcher would've been both lighter, and smaller   
   but no one would want much to do with such a thing...)   
      
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