On Tuesday, 3 June 2014 04:19:01 UTC+2, Glen Labah  wrote:   
   > In article ,   
   >  Clark F Morris  wrote:   
   >    
   > > relatively flat terrain.   Could they be allowed higher speeds in the   
   > > curves because of the lower weight and forces on the track/  This   
   > > experiment could lead to better locomotives for higher speed   
   > > equipment.   
   >    
   > E units are still in the 315,000 lbs range.   
   >    
   > What we need is someone to write a set of specifications that really    
   > pushes the envelope a little.  The current method of looking at what has    
   > been done in the past, and then setting the sights too low based on    
   > that, isn't getting us particularly great equipment.   
      
   If an E unit is your baseline (2400 hp in 140 tons), then you don't need to go   
   very far to do an awful lot better.  The British HST power cars from the 1970s   
   had approximately the same installed power in half the weight (2250 hp in 70   
   tons).  The Class    
   67 from the late 1990s manages 3200 hp in 90 tons.  In both cases, these are   
   designed for 125 mph.  The Class 68 Eurolight being deliverd today in the UK   
   has 3800 hp in 85 tons (though only rated for 100 mph).  These are all 4 axle   
   locomotives.   
      
   Robin   
      
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