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

[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.

[MR77100]

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

[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

[David Hutchinson]

Was there ever an SD-24 painted for EMD?

[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).

[SOU2645]

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

[Phil Hom]

Take a look at this URL for the SD24 painted AND lettered for EMD:

http://sd45.com/emd/pages/emd5579.htm

[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.........

[SOU2645]

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

[rail21]

Are any of these units still surviving or were they all scrapped?

[emd_SD_60]

I think they all reside in Chile now... on the Ferrocarril del Pacifico (FEPASA) railway.

[Realityrail]

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

[trainiac]

MILW 581--the first unit--was wrecked in '82 and scrapped in '84.

[MR77100]

We were trying to obtain one of those units for IRM, but the units went to Chile. What type of frame were they built on?

[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