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  • 1st Generation SD-series official thread (all variations)

  • Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.
It is currently Thu Apr 18, 2024 8:58 pm

1st Generation SD-series official thread (all variations)

Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.

Moderator: GOLDEN-ARM

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 #80453  by Alcochaser
 
Check out this Website for pictures of the SD10.

http://eirr.railfan.net

Basicaly the external changes are 4 stack manifolds, Air intake hoods, and chopped noses. Allthough SD10 555 got the entire cab from a GP35
There are also two versions of the air intake hoods. And the 550 lacks the hoods for some reason.

 #112257  by MR77100
 
What exactly is an SD9E? I know SP had some along with some GP9E's.

 #112389  by SD Shortline
 
MR77100,

On the Dakota Southern's SD9E, it has modernized elecrtical components, most of which where intsalled in the high short hood, the other modifications in the No. 2 Cabinet. The upgrades included better wheelslip controls for one and the starter switch was moved from the cab next to the layshaft handle as on most newer EMD's.

From what I gather the R's on the SP where just worked through and had the traction motors replaced with D77/78's but not much electrical, 4427 had had the motors upgraded. Both E and R's recieved a rebuilt 567, on the 4427 is labeled 567-E.

The ex-SP 4427 retained its drum style reverser and 24L brakes, so cab wise it virtually the same as older SD9's and most SD7's.

SD Shortline

 #172573  by Phil Hom
 
EMD fielded one EMD demo SD24.

It was a medium red with a yellow apron on the front. The EMD logo was in a yellow circle on the side of the short hood. UP took it off EMD's hands (as always).

 #172955  by SOU2645
 
Phil Hom wrote:EMD fielded one EMD demo SD24.

It was a medium red with a yellow apron on the front. The EMD logo was in a yellow circle on the side of the short hood. UP took it off EMD's hands (as always).

It wore the DM&IR scheme design wise. It became UP 448 - their only highnose SD24 with a cab (all other highnose UP SD24's were cabless) and was sold to ICG via PNC about 1980. Rebuilt to ICG SD20 2026. Sold to NREX and now leased longterm to PHL in the Los Angeles area.
Larry

 #173284  by David Hutchinson
 
Sometimes I am really impressed with those in our hobby... I ask a fairly difficult questions and I get info and a photo I have never seen. Thanks out there.........

 #174130  by SOU2645
 
Phil Hom wrote:Take a look at this URL for the SD24 painted AND lettered for EMD:

http://sd45.com/emd/pages/emd5579.htm
That was the second scheme it wore. The first was the Missabe Road image and the unit looked different overall as it had an air filter intake much like later EMD's when it was first built. The air tanks were below the frame at first as well. There are rare b/w photos of it in a few publications. EMD modified it to the specs shown in that photo and gave it that image just prior to it going to UP.
Larry

 #224537  by emd_SD_60
 
I think they all reside in Chile now... on the Ferrocarril del Pacifico (FEPASA) railway. :wink:

 #232301  by Realityrail
 
One was wrecked while on the Milwaukee road and never made it to the WC....the unit number escapes me!

 #232338  by trainiac
 
MILW 581--the first unit--was wrecked in '82 and scrapped in '84.

 #249838  by GOLDEN-ARM
 
If those were those old Milwaukee junkers we had on the Soo Line, I believe they were sitting on SD-38/40 frames. Really lightweight engines, not unlike the branchline SD-18's we had there, as well. Regards :-D
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