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Eastern Railroad Discussion > SD70AH?Date: 03/01/15 18:46 SD70AH? Author: dharris Noticed that this new EMD I shot at MP116 near Harrisburg was designated SD70AH instead of SD70Ace. What's the difference?
dharris Edited 1 time(s). Last edit at 03/01/15 18:46 by dharris.  Date: 03/01/15 18:54 Re: SD70AH? Author: Walla183 It's still an ACE but is built as Heavy. Unit has additional weight added similar to csx es44ah gevos
Posted from iPhone Date: 03/02/15 06:32 Re: SD70AH? Author: SOO6617 Walla183 Wrote:
------------------------------------------------------- > It's still an ACE but is built as Heavy. Unit has > additional weight added similar to csx es44ah > gevos > > Posted from iPhone Right, the SD70AH is not an official EMD model designation, just a UP designation to keep the "Heavies" separate for power dispatching purposes. Date: 03/02/15 06:54 Re: SD70AH? Author: thegoonshow Wonder why they let them roam free when they were built special.
Date: 03/02/15 09:34 Re: SD70AH? Author: Walla183 thegoonshow Wrote:
------------------------------------------------------- > Wonder why they let them roam free when they were > built special. The power desk may just see them as a 4,300hp road engine deployable as needed. Say one engine has an issue, this unit may have subbed in. Then it gets interchanged to another railroad, and voila it roams the system. Posted from iPhone Date: 03/03/15 06:07 Re: SD70AH? Author: redneckrailfan thegoonshow Wrote:
------------------------------------------------------- > Wonder why they let them roam free when they were > built special. Because they aren't held in captive service. UP adopted the heavy concept in 2013 and all new EMD's and GE's have been delivered to the railroad as such since then. Bryan Jones Brooks, KY Bryan's Train Photos Date: 03/03/15 07:18 Re: SD70AH? Author: CSXT_8437 Are they comparable as far as tractive effort with the GE heavy units?
Thank you in advance. Date: 03/05/15 11:13 Re: SD70AH? Author: sd24b CSXT_8437 Wrote:
------------------------------------------------------- > Are they comparable as far as tractive effort > with the GE heavy units? > > Thank you in advance. Yes Posted from Mobile Safari |