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   rec.arts.sf.science      Real and speculative aspects of SF scien      45,986 messages   

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   Message 44,986 of 45,986   
   Wolffan to Thomas Koenig   
   Re: What is the cheapest rocket fuel & o   
   21 May 17 19:13:52   
   
   9cb3b706   
   From: AKWolffan@gmail.com   
      
   On 2017 May 21, Thomas Koenig wrote   
   (in article ):   
      
   > Wolffan  schrieb:   
   >   
   > > So far as I know no-one used   
   > > ethanol, either pure or in a mix.   
   >   
   > The V-2 used an ethanol-water mixture. Does that qualify? :-)   
      
   the water was there to improve the thrust, though it made the mass ratio even   
   worse. (more ‘fuel’ to flow).   
      
   And, yes, I’d forgotten about the A4/V2.   
   >   
   >   
   > This was used for its cooling properties, and also (AFAIK) to keep   
   > down the temprature in the combustion chamber.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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