Yes, CP’s subsidiary Soo Line runs north from Chicago to Milwaukee and west from there. Also they have Trackage Rights over the UP south towards Louisville over the former C&EI, also east over the NS’ former Conrail Chicago Line to Elkhart, IN and thence Detroit. CP owns the largest share of the Indiana Harbor Belt and also uses the BRC.
GP40-2
January 14, 2006, 4:45pm
22
QUOTE: Originally posted by zardoz
QUOTE: Originally posted by wabash1
They dont pair units for the pleasure of having them if you break down the reason for big units is that on big unit will replace 2 smaller ones . 1 sd70 will out preform 2 sd40 hence saving fuel.( in thery) track speed is not a issue when setting up power for trains pulling power is.
Now in there thery of 1 unit replaces 2 if you work the guts out of one unit it cant be saving fuel or maintainace. in fact you are wearing it out faster. In my thery if 2 can work easier than 1 using less to do the work then you are saving . in other words if you never come out of notch 8 your not saving fuel. your drinking it by the gallon.
Two points:
I retired before the SD70’s came online, but I find it hard to believe 1unit replaces 2 40-2’s. Maybe 1.5, but not 2. I am not disagreeing with you, being as I have no experience with the 70’s, but I would like to hear more details. The reason I am surprised, is that with 2 40’s, you have twice the number of wheels looking for traction, and is not the 70 rated at only 4400hp, compared to the 3000hp of each 40-2?
And unless the new units differ greatly, a diesel engine is most efficient at full rpm.
And regarding the ‘wear-out’ factor; when Metra got the first F40’s we all thought they would fly apart after a few years, being as they are in run8 at least 6 hours per day, sometimes more. And here we are, 25 years later, and they are still going strong! Granted, they are not under very load much during that time, only when leaving stations. But each unit goes thru a power/dynamic cycle many times per day; indeed, many units make middle trips between rush-hour assignaments, and those units might make 100 power/brake cycles per day! We never thought they would last nearly this long.
Zardoz. the 2 to 1 replacement for AC locomotives is based on continious tractive
SOOOooo, since CP is subject to the same rules of physics as everyone else, shouldn’t the answer to why CP runs so few cabs is simply, “Because they can”?