From: stephen@sprunk.org   
      
   On 11-Feb-16 09:21, rcp27g@gmail.com wrote:   
   > On Thursday, 11 February 2016 03:24:33 UTC+1, Stephen Sprunk  wrote:   
   >> 12.5kV means four times as much current as 2x25kV, but if they   
   >> think their decrepit infrastructure can handle the load, c'est la   
   >> vie.   
   >   
   > As I pointed out elsewhere in the thread, DB (German railways)   
   > operate significantly higher power trains (200 mph ICE3 units) under   
   > 15 kV 16.7 Hz catenery.   
      
   Nope.  Acela loses to ICE3 on every metric _except_ raw power:   
      
   		Acela		ICE3   
   Power		9,200 kW	8,000 kW   
   Weight		565t		409t   
   Power/Weight	16.2 kW/t	19.6 kW/t   
   Seats		304		403   
   Power/Seat	30.3 kW/seat	19.9 kW/seat   
   Top Speed	266 km/h	320 km/h   
      
   > The constant tension catenery is the biggest impediment to improved   
   > performance on the NEC.   
      
   ... aside from the FRA weight penalty, of course.   
      
   S   
      
   --   
   Stephen Sprunk         "God does not play dice."  --Albert Einstein   
   CCIE #3723         "God is an inveterate gambler, and He throws the   
   K5SSS        dice at every possible opportunity." --Stephen Hawking   
      
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