Nostalgia & History > U.P. SD-7 info. please…

Hi guys!

I just recently learned that UP had SD-7’s, although not too many I believe.

I was wondering if somebody could elaborate on them a little bit, how many there were, where they lived, what duties they performed, etc. etc.

Did anybody on here ever run them? Any good stories? Any good books featuring them?

Thanks!

Tex

Posted from iPhone

This is probably a good place to start:
https://utahrails.net/up-diesel-roster/up-diesel-roster-05.php#sd7-450

mike woodruff
spokane

See also:

https://www.trainorders.com/discussion/read.php?11,5511051
https://www.trainorders.com/discussion/read.php?11,5465229
https://www.trainorders.com/discussion/read.php?11,5463953
https://www.trainorders.com/discussion/read.php?11,5461977,5461978#5461978
https://www.trainorders.com/discussion/read.php?11,5459807,5459808#5459808
https://www.trainorders.com/discussion/read.php?11,5343945
https://www.trainorders.com/discussion/read.php?11,5242059
https://www.trainorders.com/discussion/read.php?11,5238369
https://www.trainorders.com/discussion/read.php?11,5233437
https://www.trainorders.com/discussion/read.php?11,5218823,5218824#5218824
https://www.trainorders.com/discussion/read.php?11,4967421,4967518#4967518
https://www.trainorders.com/discussion/read.php?11,4916570,4916573#4916573
https://www.trainorders.com/discussion/read.php?11,4625880,4625882#4625882
https://www.trainorders.com/discussion/read.php?11,4610441,4610442#4610442
https://www.trainorders.com/discussion/read.php?11,4510153,4510156#4510156
https://www.trainorders.com/discussion/read.php?11,4174198,4174201#4174201
https://www.trainorders.com/discussion/read.php?11,3985066,3985084#3985084
https://www.trainorders.com/discussion/read.php?11,3759925,3759925#3759925
https://www.trainorders.com/discussion/read.php?11,2692077,2692084#2692084
https://www.trainorders.com/discussion/read.php?11,2609925
https://www.trainorders.com/discussion/read.php?11,2092711
https://www.trainorders.com/discussion/read.php?11,1171335,1171338#1171338
 

Thanks Mike and Evan!

I had seen several of those TO postings, but not all of them…so thanks for the additional info.

Hoping to hear some stories from somebody who ran them.

Posted from iPhone

For illustration, UP 451 lounging at the SLC engine service facility on August 11, 1974.  (I couldn't bear to crop out that cute yard shack.)
Tim Costello

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Seemed that they had rare Nathan M3 horns, unusual for Union Pacific.
Regards, Jim Evans

Wow! Very informative Don…thank you so much for that, I throughly enjoyed reading that this thanksgiving morning. You answered all my questions, and I appreciate you taking the time to write that up. It would sure be neat to find a picture of the two in Liberia.

Tim…thanks for your great picture! What was that little shack used for…seems pretty tiny for a break shack.

Interesting about the horn also Jim, thanks!
Posted from iPhone



Edited 2 time(s). Last edit at 11/24/22 10:02 by Texican65.

Curious if these were ballasted heavy for these assignments?
The SP seemed to have a different weight for each of their classes, intending them for lightweight branches, or helper duty, etc.