Forums

[Anonymous]

Just a little update here about the SD70M-2:

http://www.gmemd.com/en/locomotive/na_freight/sd70m-2/

[Sterling1]

Is the SD70ACe a 4300 or 4500 horsepower locomotive and why that particular number?

[CSXrules4eva]

QUOTE: Originally posted by csxengineer98

why are the dynamic brakes on the 70 & 80macs so weak compaired to the superior GE dynamic brake

I honestly thought that the EMD dynamic brake was fare more superior than the GE. I thought the GE dynamic brake had less than 96,000lbs which is wut the SD80MAC has.

[Anonymous]

QUOTE: Originally posted by Sterling1

Is the SD70ACe a 4300 or 4500 horsepower locomotive and why that particular number?

4,300. I believe they chose that number becuase it is part of the "70" Series.

QUOTE: Originally posted by csxengineer98

why are the dynamic brakes on the 70 & 80macs so weak compaired to the superior GE dynamic brake

SD70MAC- 81,000 lbs.
SD80MAC- 96,000
SD90MAC- 115,000
AC4400CW- 98,000

[paulbach]

What, if any, are the differences between the SW1500 and the MP15.

[Anonymous]

QUOTE: Originally posted by paulbach

What, if any, are the differences between the SW1500 and the MP15.

Internally, they are pretty much the same. The MP15 (I assume you mean MP15, not MP15AC or MP15T) uses road trucks, like the ones found on a GP40-2, while the SW1500 has flexicoil trucks. Also the MP15 is 48' 8" long while the SW1500 comes in at 44' 8". A whole 4 feet shorter.

[Anonymous]

I own the 1997 BNSF motive power review, which is the only year I have. Great book, taught a lot about the new locomotives I didn't know about. One locomotive I really liked was the BN SD40C 6330, which had been repowered with a CAT 12 making 4200hp. The book described it as the SOLE former BN cat powered unit in the BNSF fleet. I take it there were more at one time that have been gotten rid of. Correct?
Why? What is the downside of these units? Did they have some problems? You would think it would be great to take an old SD40-2 making 3000 hp and swap its motor with something making 1200 more. That almost makes it equal with the newest units out there. So what went wrong? Also, I'm not up to date on BNSF. Do they still have 6330 in operation? Thanks.

[Anonymous]

6330 was an experiment to save fuel. Retired SD45 6440 was the donor for the long hood, including the radiators. 6330 also had snow shields over the inertial air intake screens. 6330 made it to the BNSF roster and was renumbered 7600. Sadly, I believe this unit has been retired.

Here is a photo of 6330:
http://www.trainpix.com/BN/EMDRBLD/SD40C/6330.HTM

[Anonymous]

Gday from Australia , can you tell me the difference in 16 645 E3B and E3C prime movers . Also what physical differences are there between Roots blown and Turbocharged 16 645's internally ie rods / pistons / liners etc .
We still run GM's with the 645E3C's , AR16 alternators / D77B Traction Motors and Super Series . I imagine these are a SD40X / 50 hybrid . They are old and hungry but still very capable . Our staple diet is a GE known as CV40-9i which is basically an Australianised C40-9 built by A.E Goninan . They use smaller hybrid traction motors and gross 132 metric tonnes . As a go anywhere do anything loco they blitz everything else .
Cheers DPO3 .

[Anonymous]

Did any U.P. SD90s get outfitted with 6000 hp motors?
I kno they had plans to do so, but where the plans ever carried out??

[CSSHEGEWISCH]

UP 8500-8561 were actually built with 265H engines rated at 6000 HP, I don't think that any of the others were actually converted.

[Anonymous]

Thanks for the reply, that is very hlpful.

Chris

[Anonymous]

Its Chris again. Have any idea as to the practical purpose of a fully coweled locomotive, such as an F45??

Thanks!

[Anonymous]

How did Clyde and other companies get licences to make diesels under the GM EMD name?

[CSSHEGEWISCH]

Licensing agreements are a common procedure in a variety of businesses. In this instance, the overseas manufacturer agrees to pay a royalty to build locomotives using EMD's designs. The builder needs to meet certain standards and other requirements.
MACOSA in Spain holds licenses from EMD and Alstom and DLW in India holds licenses from Alco and EMD.