From: Rmy.MERCIER.21muxn@spacebanter.com   
      
   Ian Stirling Wrote:   
   > R?my MERCIER Rmy.MERCIER.21k2xn@spacebanter.com wrote:   
   >   
   > bob_jenkins@burtleburtle.net Wrote:   
   > How come the commercial airlines use jet fuel rather than LOX/H2?  I   
   > would have thought LOX/H2 would be lighter and would give the planes   
   > a   
   > longer range.  Is petroleum just cheaper?   
   >   
   > Gas instead of kerosene was studied in the 1990s. In the future we'll   
   > see very large planes (kerosene will desapear 100 years before gas).   
   > Imagine a A380 with the first level full with gas. To build A380 was   
   > an   
   > intelligent move.   
   >   
   > LNG is not especially less dense than kerosene - though it has   
   > problems   
   > of its own.   
      
   Yes, many problems. No gas engine, less dense (I remember that in the   
   1990s the question studied was about NG but not LNG... very less   
   dense... so the a380?... )   
   Rémy   
      
      
   --   
   Rémy MERCIER   
      
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