by njtmnrrbuff
[quote="rcthompson04"]There is a lot of discussion of the constant tension issue, but wouldn't the real benefit for EMUs for Amtrak to be on services where it is unlikely to get up to 125mph anyway due to frequent stops? The Keystones are a good example of this need. The trains can barely get up to speed between Exton - Downingtown - Coatesville - Parkesburg with the ACS-64 equipment, which is a vast improvement from the AEM-7s.[/quote]
I think electric motors in general were a vast improvement in acceleration from when there were P42s and P40s pulling three to four car Keystones. I think that it's about five miles from Exton to Downingtown, about six miles from Downingtown to Coatesville, and six miles from Coatesville to Parkesburg. If EMUs were to operate in Amtrak Keystone service, the time savings between stations might not be that greater than a Sprinter pulling five Amfleets.
I think electric motors in general were a vast improvement in acceleration from when there were P42s and P40s pulling three to four car Keystones. I think that it's about five miles from Exton to Downingtown, about six miles from Downingtown to Coatesville, and six miles from Coatesville to Parkesburg. If EMUs were to operate in Amtrak Keystone service, the time savings between stations might not be that greater than a Sprinter pulling five Amfleets.