From: jishnu@nospam.verizon.net   
      
   On 6/4/2014 5:20 AM, rcp27g@gmail.com wrote:   
   > On Wednesday, 4 June 2014 04:16:20 UTC+2, Clark F Morris  wrote:   
   >   
   >> Because the E units have 6 axles, the individual axle load should be   
   >> less and it would be interesting to compare centers of gravity.   
   >   
   > The E series does not have a particularly light axle load, because although   
   it has 6 axles, it is a heavyweight machine.  An E9 has 2400 hp, weighs 140   
   tonnes and rides on 6 axles, giving an axle load of 23.3 tonnes.  An HST power   
   car (1970s design)    
   has 2250 hp, weighs 70 tonnes and rides on 4 axles, giving an axle load of   
   17.5 tonnes.   
   >   
   > The real question is why modern locomotives end up so heavy.  I expect part   
   of it is that FRA requirements lead to the need for a much heavier structure,   
   and part of it is that the customers don't bother specifying a lightweight   
   locmotive, so they get    
   what they ask for.   
   >   
   > Robin   
   >   
      
   But a vanilla Vectron in Europe has an axle load over 22.5 t. So it is   
   not like it is a pure American phenomenon. No FRA in Europe.   
      
   --- SoupGate/W32 v1.03   
    * Origin: LiveWire BBS -=*=- UseNet FTN Gateway (1:2320/1)