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UP U50 31
Title:  UP U50 31
Description:  Union Pacific Railroad U50 31 near Omaha, Nebraska on October 26, 1963, Kodachrome by Lou Schmitz, Chuck Zeiler collection. Union Pacific's Chief Mechanical Officer, D. S. Neuhart, came up with the idea to replace as many as ten first generation locomotives (rated at 1500 hp each) with three dual power plant locomotives producing the equivalant 15,000 horsepower. All three builders responded, and GE delivered three U50's in October 1963. This is the first U50 in road number order, and this is likely the first run of number 31. Completed in October 1963 (c/n 34891), placed in service October 26, 1963, it was retired January 1974 and traded back to GE. It rides on trucks and span bolsters from UP's Standard and Veranda gas-turbines, which were taken out of service in 1962. The trucks and span bolsters were reconditioned by the UP at Omaha and shipped to GE, and the turbines carbodies were scrapped.
Photo Date:  10/26/1963  Upload Date: 11/8/2010 10:45:46 AM
Location:  Omaha, NE
Author:  Lou Schmitz
Categories:  Roster
Locomotives:  UP 31(U50)
Views:  7402   Comments: 2
Monsters of the Midway crashing the grade at Perry.
Title:  Monsters of the Midway crashing the grade at Perry.
Description:  Monsters of the Midway crashing the grade at Perry.
Photo Date:  3/8/1971  Upload Date: 3/8/2005 11:54:21 AM
Location:  Perry, KS
Author:  Photo by other.
Categories:  Action
Locomotives:  UP 31(U50)
Views:  4926   Comments: 13
UP Calendar Cover 1972
Title:  UP Calendar Cover 1972
Description:  UP U-Boats on Front clver of UP 1972 Corporate calendar
Photo Date:  12/31/1972  Upload Date: 9/28/2010 6:39:00 PM
Location:  Ogden, UT
Author:  Jeff Wilson
Categories:  Track
Locomotives:  UP 32(U50) UP 31(U50) UP 33(U50)
Views:  2591   Comments: 0
UP 32
Title:  UP 32
Description:  U50 Sitting Somewhere. UP 31 sitting behind so maybe new units.
Photo Date:  10/1/1963  Upload Date: 6/18/2007 10:31:39 PM
Location:  Unknown, US
Author:  Unknown
Categories: 
Locomotives:  UP 32(U50)
Views:  2629   Comments: 1
UP U-Boats in Harriman, Wyoming
Title:  UP U-Boats in Harriman, Wyoming
Description:  UP U-Boats
Photo Date:  9/1/1965  Upload Date: 9/28/2010 6:38:22 PM
Location:  Cheyenne, WY
Author:  Jeff Wilson
Categories:  Track
Locomotives:  UP 33(U50) UP 35(U50) UP 34(U50)
Views:  5505   Comments: 1
Union Pacific U50 34
Title:  Union Pacific U50 34
Description:  Union Pacific U50 34 rests at Kansas City, KS June 1971. Unknown Photographer Photo.
Photo Date:  6/24/1971  Upload Date: 2/27/2021 4:48:46 PM
Location:  Kansas City, KS
Author:  Unknown
Categories:  Roster
Locomotives:  UP 34(U50)
Views:  409   Comments: 0
GE U50 cab interior: Automatic Brake Valve and side of Control Stand
Title:  GE U50 cab interior: Automatic Brake Valve and side of Control Stand
Description:  Photo taken at C&NW Cedar Lake shop
Photo Date:  12/28/1973  Upload Date: 7/13/2008 4:56:46 PM
Location:  Minneapolis, MN
Author:  Jim Hinshaw
Categories:  Roster
Locomotives:  UP 34(U50)
Views:  4787   Comments: 1
UP U50 #34 on the C&NW Cedar Lake transfer table
Title:  UP U50 #34 on the C&NW Cedar Lake transfer table
Description: 
Photo Date:  12/28/1973  Upload Date: 7/3/2008 4:44:52 PM
Location:  Minneapolis, MN
Author:  Jim Hinshaw
Categories:  Roster,Night,Yard
Locomotives:  UP 34(U50)
Views:  3102   Comments: 1
GE U50 cab interior: Control Switches and AMMETER Rear Engine
Title:  GE U50 cab interior: Control Switches and AMMETER Rear Engine
Description:  Photo taken at C&NW Cedar Lake shop. This panel was on the back wall of the cab. It had two sets of control switches for the two engines and a load meter for the back engine.
Photo Date:  12/28/1973  Upload Date: 7/13/2008 4:57:27 PM
Location:  Minneapolis, MN
Author:  Jim Hinshaw
Categories:  Roster
Locomotives:  UP 34(U50)
Views:  4441   Comments: 0
GE U50 cab interior: Throttle and Transition/Dynamic Brake Control
Title:  GE U50 cab interior: Throttle and Transition/Dynamic Brake Control
Description:  Photo taken at C&NW Cedar Lake shop. Control stand with throttle transition/dynamic brake selecter lever, air gauges and the load meter for the front engine
Photo Date:  12/28/1973  Upload Date: 7/13/2008 4:58:15 PM
Location:  Minneapolis, MN
Author:  Jim Hinshaw
Categories:  Roster
Locomotives:  UP 34(U50)
Views:  5875   Comments: 0
UP U50 37
Title:  UP U50 37
Description:  Union Pacific Railroad U50 37 being delivered at Council Bluffs, Iowa on July 18, 1964, Kodachrome by Lou Schmitz, Chuck Zeiler collection. Built in July 1964 (c/n 35097), it was placed in service July 22, 1964, retired in November 1974 and traded to GE for new power. It was basically two U25B's on a common frame, riding on trucks and span bolsters from retired turbines. It is appears that it is being delivered to the UP.
Photo Date:  7/18/1964  Upload Date: 11/8/2010 11:42:53 AM
Location:  Council Bluffs, IA
Author:  Lou Schmitz
Categories:  Roster
Locomotives:  UP 37(U50)
Views:  6335   Comments: 1
UP 8 East blasting thru Weber Canyon with 28,500 HP!
Title:  UP 8 East blasting thru Weber Canyon with 28,500 HP!
Description:  Randy Curlin Collection
Photo Date:  6/7/1967  Upload Date: 11/8/2020 10:48:35 PM
Location:  Uintah, UT
Author:  Randy Curlin Collection
Categories:  Scenic,Action
Locomotives:  UP 8(8500 GTEL) UP 43(U50) UP 37(U50)
Views:  716   Comments: 3
UP U50 38
Title:  UP U50 38
Description:  Union Pacific Railroad U50 38 at Council Bluffs, Iowa on June 13, 1965, Kodachrome by Lou Schmitz, Chuck Zeiler collection. Built in July 1964 (c/n 35098), placed in service July 27, 1964, retired September 25, 1973 and traded to GE, the U50 was two U25B's on a common frame (two FDL-16 four stroke prime movers coupled to two GT588 main generators producing 5000 hp total to eight GE-752A traction motors), utilizing span bolsters and trucks from retired gas-turbine locomotives. One wonders why they didn't carry the red stripe sheet metal continuously across the top of the radiator intakes. The triangular shaped items on the running board, located almost over the center of each span bolster, are the sandboxes. The only other customer, the Southern Pacific, acquired just three U50 locomotives and they lasted a bit longer on the SP.
Photo Date:  6/13/1965  Upload Date: 11/10/2010 1:14:34 PM
Location:  Council Bluffs, IA
Author:  Lou Schmitz
Categories:  Roster
Locomotives:  UP 38(U50)
Views:  4680   Comments: 0
UP 39
Title:  UP 39
Description: 
Photo Date:  2/2/1969  Upload Date: 12/16/2010 6:34:34 PM
Location:  Laramie, WY
Author:  Jack Smith
Categories:  Roster
Locomotives:  UP 39(U50)
Views:  1045   Comments: 0
UP U50 #40
Title:  UP U50 #40
Description: 
Photo Date:  8/28/1973  Upload Date: 8/15/2020 8:21:55 AM
Location:  North Platte, NE
Author:  Gerard Putz
Categories:  Roster
Locomotives:  UP 40(U50)
Views:  370   Comments: 0
UP U50 41
Title:  UP U50 41
Description:  Union Pacific Railroad U50 41 at Council Bluffs, Iowa on May 2, 1965, Kodachrome by Lou Schmitz, Chuck Zeiler collection. Built around August 1964 (c/n 35101), retired and traded to GE January 1974. A batch of 12 were delivered between July and September 1964, while a final eight were built May through August 1965. They were numbered 31-53. The number 72 appears in the engineer's side number board, and at the time of this photo, the UP (and the SP) were using the number boards to display the train number, not the locomotive number, so perhaps this locomotive last worked train #72. The trucks and connecting span bolsters came from retired gas-turbine locomotives. This locomotive was essentially two U25B's on a common frame. The UP had determined that the maintenance costs were independent of the power output of the locomotive, so the concept was to reduce maintenance costs by using a few large locomotives in place of several smaller locomotives.
Photo Date:  5/2/1965  Upload Date: 11/14/2010 11:22:33 AM
Location:  Council Bluffs, IA
Author:  Lou Schmitz
Categories:  Roster
Locomotives:  UP 41(U50)
Views:  4354   Comments: 0
UP U50 42
Title:  UP U50 42
Description:  Taken circa 1971.
Photo Date:  1/1/1971  Upload Date: 9/15/2021 5:00:41 PM
Location:  Denver, CO
Author:  Bob Jordan
Categories: 
Locomotives:  UP 42(U50)
Views:  193   Comments: 0
UP Devil's Slide, Utah
Title:  UP Devil's Slide, Utah
Description:  UP U-Boats running out west from the July, 1975 UP calendar
Photo Date:  7/1/1975  Upload Date: 9/28/2010 6:36:50 PM
Location:  Ogden, UT
Author:  Jeff Wilson
Categories:  Roster,Scenic,Track,Action
Locomotives:  UP 44(U50) UP 43(U50)
Views:  2958   Comments: 0
UP U50 #45 - Union Pacific
Title:  UP U50 #45 - Union Pacific
Description:  Interesting experiment by Union Pacific produced this stub-nosed diesel built by GE in 1965. The GE U50 was an eight-axle, 5,000 hp (3.7 MW) diesel-electric locomotive built by GE Rail. They were twin-engined locomotives, combining two 2,500 hp (1,900 kW) diesel engines. The U50 was built in response to the Union Pacific Railroad's requirement, issued in the early 1960s, for a 15,000 hp (11,200 kW) 3-unit locomotive intended to replace the turbines. This unit was retired sometime between 1973-74 and possibly traded into GE. The exact location, date and photographer are unknown.
Photo Date:  6/1/1970  Upload Date: 7/8/2017 10:35:18 AM
Location:  Unknown, WY
Author:  Gary Everhart
Categories:  Roster,Action
Locomotives:  UP 45(U50)
Views:  537   Comments: 1
UP 46
Title:  UP 46
Description:  UP 46, shown here on an eastbound freight at Topeka, would be retired and traded in to GE in September, 1973. Date of photo approximate.
Photo Date:  6/1/1972  Upload Date: 12/10/2008 5:38:45 PM
Location:  Topeka, KS
Author:  Mike Woodruff
Categories: 
Locomotives:  UP 46(U50)
Views:  3491   Comments: 13
UP 46
Title:  UP 46
Description:  Going away shot of UP U50 #46. Date of photo approximate.
Photo Date:  6/1/1972  Upload Date: 12/10/2008 5:44:49 PM
Location:  Topeka, KS
Author:  Mike Woodruff
Categories: 
Locomotives:  UP 46(U50)
Views:  3502   Comments: 0
UP 49
Title:  UP 49
Description:  UP 49 was retired and traded in to GE in January, 1974. Date of photo approximate.
Photo Date:  6/1/1972  Upload Date: 12/10/2008 6:18:11 PM
Location:  Topeka, KS
Author:  Mike Woodruff
Categories: 
Locomotives:  UP 49(U50)
Views:  2897   Comments: 5
UP U-Boats from the UP 1972 Calendar
Title:  UP U-Boats from the UP 1972 Calendar
Description:  UP in Perkins, Wyoming
Photo Date:  5/1/1972  Upload Date: 9/28/2010 6:37:54 PM
Location:  Perkins, WY
Author:  Jeff Wilson
Categories:  Track
Locomotives:  UP 50(U50) UP 2909(U30C)
Views:  3013   Comments: 0
UP 51 Archer, Wy east of Cheyenne, late 60s
Title:  UP 51 Archer, Wy east of Cheyenne, late 60s
Description:  UP 51 Archer, Wy east of Cheyenne, late 60s
Photo Date:  1/2/1969  Upload Date: 1/2/2012 6:10:53 PM
Location:  Archer (Laramie), WY
Author:  Wendy Crim
Categories:  Action
Locomotives:  UP 51(U50)
Views:  1324   Comments: 2
FRISCO U-boat taggin' along.
Title:  FRISCO U-boat taggin' along.
Description:  At the time, the elevator was the second largest in the world.
Photo Date:  7/20/1973  Upload Date: 2/11/2005 1:02:41 PM
Location:  Topeka, KS
Author:  Photo by other
Categories: 
Locomotives:  UP 51(U50)
Views:  5094   Comments: 5
UP #51
Title:  UP #51
Description:  Scanned with an Epson V550 from a duplicate Ektachrome 35mm slide.
Photo Date:  12/8/2014  Upload Date: 8/7/2016 9:19:56 PM
Location:  Unknown, CA
Author:  Richard R. "Dick" Wallin/Paul Frantz Collection
Categories: 
Locomotives:  UP 51(U50)
Views:  999   Comments: 1
Union Pacific U50 52
Title:  Union Pacific U50 52
Description:  Union Pacific U50 52 charges through North Platte NE September 1969. Unknown Photographer Photo.
Photo Date:  9/1/1969  Upload Date: 3/11/2022 10:38:43 PM
Location:  North Platte, NE
Author:  Unknown
Categories:  Action
Locomotives:  UP 52(U50)
Views:  263   Comments: 1
SP 8502 as delivered
Title:  SP 8502 as delivered
Description:  One of three U50s in its original number.
Photo Date:  7/1/1964  Upload Date: 7/27/2012 12:16:21 AM
Location:  Los Angeles, CA
Author:  John Huey
Categories:  Roster
Locomotives:  SP 8502(U50)
Views:  1720   Comments: 1
SP 8502
Title:  SP 8502
Description:  PRE 1965 Renumbering; date is aproximate, man who took this was known as TINY...
Photo Date:  6/10/1965  Upload Date: 5/10/2008 7:33:42 AM
Location:  Los Angeles, CA
Author:  Charles "Tiny"
Categories: 
Locomotives:  SP 8502(U50)
Views:  1839   Comments: 2
SP 9550 near Industry Yard, back in the day.
Title:  SP 9550 near Industry Yard, back in the day.
Description:  SP 9550 front half, great way to view those details.
Photo Date:  8/7/1969  Upload Date: 11/7/2016 4:40:05 PM
Location:  Industry, CA
Author:  Richard Curts - LA 13½
Categories:  Roster
Locomotives:  SP 9550(U50)
Views:  682   Comments: 0
SP 9550 rear half mostly, details on rear truck.
Title:  SP 9550 rear half mostly, details on rear truck.
Description:  SP 9550's rear section.
Photo Date:  8/7/1969  Upload Date: 11/7/2016 4:46:15 PM
Location:  Industry, CA
Author:  Richard Curts - LA 13½
Categories:  Roster
Locomotives:  SP 9550(U50)
Views:  498   Comments: 0
SP 9550 smoking it up near City of Industry.
Title:  SP 9550 smoking it up near City of Industry.
Description:  Here you can see what was on either side of those detail images seen elsewhere in this album.
Photo Date:  8/7/1969  Upload Date: 11/7/2016 5:51:31 PM
Location:  Industry, CA
Author:  Richard Curts - LA 13½
Categories:  Roster,Scenic,Action
Locomotives:  SP 9550(U50) SP 8607(U33C)
Views:  827   Comments: 0
SP 9950
Title:  SP 9950
Description:  Date is uncertain.
Photo Date:  1/11/1965  Upload Date: 5/10/2008 7:35:00 AM
Location:  Los Angeles, CA
Author:  John Huey
Categories: 
Locomotives:  SP 9950(U50)
Views:  1958   Comments: 0
SP 9950
Title:  SP 9950
Description: 
Photo Date:  3/10/1973  Upload Date: 8/3/2011 10:38:13 AM
Location:  Los Angeles, CA
Author:  Craig Walker
Categories:  Roster
Locomotives:  SP 9950(U50)
Views:  1847   Comments: 1
SP Ultra GE
Title:  SP Ultra GE
Description: 
Photo Date:  9/1/1973  Upload Date: 2/10/2004 8:17:37 PM
Location:  West Colton, CA
Author:  Unknown Author
Categories: 
Locomotives:  SP 9950(U50)
Views:  2102   Comments: 0
SP 9950
Title:  SP 9950
Description: 
Photo Date:  2/1/1974  Upload Date: 8/3/2011 10:37:11 AM
Location:  Los Angeles, CA
Author:  Craig Walker
Categories:  Roster
Locomotives:  SP 9950(U50)
Views:  1779   Comments: 0
SP 9950
Title:  SP 9950
Description:  Thanks Tom Fassett for the photo clean up... Pic taken near City of Industry
Photo Date:  1/1/1975  Upload Date: 2/4/2009 3:35:53 PM
Location:  Industry, CA
Author:  John Huey
Categories:  Roster
Locomotives:  SP 9950(U50)
Views:  2667   Comments: 4
SP 9952
Title:  SP 9952
Description:  Like a beached whale being picked apart by scavengers, one of Southern Pacifics three huge U50 diesels is dismantled at a scrapper on Terminal Island, Long Beach, California. "Born" at General Electrics Erie, PA, factory in May of 1964 (as SP 8500, then SP 9550), the big behemoth "died" just 14 years and one month later.
Photo Date:  7/1/1977  Upload Date: 8/3/2011 10:26:07 AM
Location:  Long Beach, CA
Author:  Craig Walker
Categories: 
Locomotives:  SP 9950(U50)
Views:  1980   Comments: 1
Southern Pacific GE U50 #9950
Title:  Southern Pacific GE U50 #9950
Description:  SP 9950
Photo Date:  8/12/1977  Upload Date: 8/17/2024 7:08:30 AM
Location:  Los Angeles, CA
Author:  Steven Vincent
Categories: 
Locomotives:  SP 9950(U50)
Views:  39   Comments: 0
SP 9950
Title:  SP 9950
Description:  The only thing left of the U50
Photo Date:  3/1/2014  Upload Date: 3/8/2014 3:43:41 PM
Location:  Perris, CA
Author:  Ashley Rodriguez
Categories: 
Locomotives:  SP 9950(U50)
Views:  1024   Comments: 2
Southern Pacific U50 #9951 in deadline.
Title:  Southern Pacific U50 #9951 in deadline.
Description:  SP 9951
Photo Date:  3/14/1976  Upload Date: 3/5/2023 8:56:55 AM
Location:  Los Angeles, CA
Author:  Steven Vincent
Categories: 
Locomotives:  SP 9951(U50)
Views:  144   Comments: 0
Southern Pacific GE U50 #9951
Title:  Southern Pacific GE U50 #9951
Description:  SP 9951
Photo Date:  7/19/1976  Upload Date: 8/17/2024 7:31:43 AM
Location:  Los Angeles, CA
Author:  Steven Vincent
Categories: 
Locomotives:  SP 9951(U50)
Views:  33   Comments: 0
Southern Pacific GE U50 #9951
Title:  Southern Pacific GE U50 #9951
Description:  SP 9951
Photo Date:  7/20/1976  Upload Date: 8/17/2024 7:35:03 AM
Location:  Los Angeles, CA
Author:  Steven Vincent
Categories: 
Locomotives:  SP 9951(U50)
Views:  29   Comments: 0
SP #9952 a GE U50.
Title:  SP #9952 a GE U50.
Description:  SP 9952. Photo date is approximate.
Photo Date:  5/15/1975  Upload Date: 3/18/2020 12:15:13 PM
Location:  Los Angeles, CA
Author:  Steven Vincent
Categories: 
Locomotives:  SP 9952(U50)
Views:  1210   Comments: 2
SSW 3652, SP 9902, and SP 9952.
Title:  SSW 3652, SP 9902, and SP 9952.
Description:  Cotton Belt GP9 3652 leads SP DD35 9902 and U50 9952 at City of Industry Yard.
Photo Date:  11/11/1976  Upload Date: 8/9/2015 12:52:31 PM
Location:  Industry, CA
Author:  Richard Curts - L.A. 13½
Categories:  Action
Locomotives:  SP 9902(DD35) SP 9952(U50) SSW 3652(GP9)
Views:  1139   Comments: 0
SP 9952
Title:  SP 9952
Description:  On November 25th, 1976, one third of Southern Pacifics big EMD and GE diesels are serviced at the railroads Taylor Yard in Los Angeles, California. The Espee owned three U50s (represented here by 9952) and three DD35s (as illustrated by 9901).
Photo Date:  11/25/1976  Upload Date: 8/3/2011 11:58:45 AM
Location:  Los Angeles, CA
Author:  Craig Walker
Categories:  Roster,Yard
Locomotives:  SP 9952(U50) SP 9901(DD35)
Views:  2619   Comments: 1
SP 3823
Title:  SP 3823
Description:  A Southern Pacific Hauler heads west through City of Industry behind GP9R 3823 (ex-3673, nee-5810), U50 9952 (ex-9552, nee-8502), GP35 6660 (ex-7763) and another GP9R in November 1977. (Exact date unknown.)
Photo Date:  11/1/1977  Upload Date: 2/23/2012 12:34:49 PM
Location:  City of Industry, CA
Author:  Craig Walker
Categories: 
Locomotives:  SP 9952(U50)
Views:  1070   Comments: 1
SP 9952 - Bloomington, CA - 11/5/77
Title:  SP 9952 - Bloomington, CA - 11/5/77
Description:  A westbound Hauler leaves SPs West Colton Yard heading for Los Angeles headed by a rare U50 / DD35 lashup. By the middle of the next year, the SPs U50s were gone...
Photo Date:  11/5/1977  Upload Date: 6/21/2010 1:08:18 AM
Location:  Bloomington, CA
Author:  Craig Walker
Categories:  Yard,Action
Locomotives:  SP 9952(U50) SP 9900(DD35)
Views:  3471   Comments: 11


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