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Is high horsepower per axle really neccessary or even better for high speed work(60 to 75 MPH)
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Is high horsepower per axle really neccessary or even better for high speed work(60 to 75 MPH)?? <br /> <br />In the recent past the western RR's like the ATSF, BN and UP used high geared C-C like (59:18) F45, SD45-2, Fast Forty SD40-2 and (60:17) SD40 and SD40-2's for high speed work like TOFC/COFC and perishable produce reefers. <br /> <br />But the eastern RR's such as NYC, SCL and B&O relied HP B-B's like the GP40 and the U36B which had a horsepower per axle rating of 750 HP and 900 HP respectively. <br /> <br />So why the western RR's use 3000 HP C-C unit for high speed work even though they have the 500 HP per axle rating of GP38???
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