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SD70ACe9011
06-08-2005, 12:03 AM
I was wondering if there was a way to determine if the loco has DC or AC traction just by looking at the loco. Also, does GE have any AC locos besides the AC4400/6000 and the es4400AC?

Thanks

SD70ACe9011

David Telesha
06-08-2005, 12:05 AM
Look at the builders sticker?

cmherndon
06-08-2005, 12:26 AM
As far as I know there's not really any way to tell just by looking since that aspect of a locomotive is internal. Like David said, looking at the builder's plate will give the model. Also there are several locomotive rosters on the internet where you can get info all locomotives owned by a railroad.

Also, does GE have any AC locos besides the AC4400/6000 and the es4400AC?

As far as I know, those are the only locomotives with AC traction that GE has produced.

On an interesting note, modern DC locomotives (EMD since 1972, GE since ???) use an AC alternator instead of a DC generator, but still have DC traction.

SD70MACMAN
07-01-2005, 09:51 PM
Actually, one can tell the difference between AC and DC locomotives. For example, The SD70 DC series has 3 radiators on the conductors side while the SD70MAC has 2. Also there are additional electrical cabnets behind the cab and at the rear of the SD70MAC. For GE, the AC4400 has a huge inverter cabnet on the conductors side while the air condtioner is located on the engineer side of the cab, as seen by grills. The AC6000 is in a league all its own. And I cant seel the difference [maybe there isnt one] between SD70ACe and SD70M-2 yet.

Super2000
07-02-2005, 04:06 PM
Telling the ES44's apart is basically impossible. You can tell whether you're looking at an AC4400 or a Dash-9 engine by looking at the cab. The center panel of the cab is narrower on the AC4400.

bnsf sammy
11-08-2005, 02:41 AM
Telling the ES44's apart is basically impossible. You can tell whether you're looking at an AC4400 or a Dash-9 engine by looking at the cab. The center panel of the cab is narrower on the AC4400.
Plus the ac4400 has that big panel on the left side. Is that what you meant?