zoltanccc@aol.com (Zoltan Szakaly) wrote:   
      
   >mightyhugh@yahoo.co.uk (Hugh) wrote in message news:<4087e28e.3   
   06038@news.btopenworld.com>...   
   >> On 19 Apr 2004 01:04:37 GMT, Jim Davis    
   >> wrote:   
   >>   
   >> >The following small item appeared in the Feb, 1967 (V9,N2) issue of   
   >> >"Spaceflight":   
   >> >   
   >> >"United Technology Center scientists have announced the successful   
   >> >test-firing of a small rocket motor which uses water as an oxidant in   
   >> >conjunction with a solid fuel. Combustion occurs instantaneouslywhen   
   >> >water is sprayed into the hollow core of the solid fuel grain.   
   >> >Chemicals in the fuel react violently with the water, generating   
   >> >4000°F gases which are expelled through a nozzle to produce thrust.   
   >> >Composition of the fuel is being kept secret."   
   >> >   
   >   
   >   
   >If we were to do this why not use the liberated hydrogen as a source   
   >of additional thrust by combining it with the oxygen from the ambient   
   >air.   
   >   
   >This could be like a ramjet/rocket that would first combine   
   >aluminum+sodium+magnesium with water and blow the combustion gases   
   >into a ventury, like an ejector ramjet, where the entrained air would   
   >further burn with the hydrogen and improve the Isp.   
   >   
   >Zoltan   
      
   In which case, why not simply burn the solid fuel with the oxygen in the   
   air -- same net effect, and you don't have to lug water around.   
      
   Something doesn't add up here.  Oh, btw, it's spelled "venturi".   
      
   /kenw   
      
   Ken Wallewein   
   K&M Systems Integration   
   Phone (403)274-7848   
   Fax   (403)275-4535   
   kenw@kmsi.net   
   www.kmsi.net   
      
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