From: dannyb@panix.com   
      
   In <05acb80c-d571-45df-b95e-7fbe17d02f56@googlegroups.com> "Peter T. Daniels"   
    writes:   
      
   >> Why would slower accelration save power? I could see it reducing   
   >> the peak demand, but the total power used to bring the train up   
   >> to speed should be the same whether you're feeding the motors   
   >> five hundred kilowatts or two thousand.   
   >>   
   >> It'll just take longer...   
      
   >Fuel economy tips, e.g. from the Car Talk guys, always say to avoid jackrabbit   
   >starts   
      
   Sure, that's the claim. But I'll be damned if I can come up   
   with any valid physics reason why that should be true. (Modulo   
   issues with less efficiency as the motor changes its output   
   or if you're outside the "sweat spot" - which wouldn't   
   be a problem with electrical motors anyway)   
      
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   		     dannyb@panix.com   
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