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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:  5660   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:  4153   Comments: 8
UP Calendar Cover 1972
Title:  UP Calendar Cover 1972
Description:  UP U-Boats on Front cover 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:  1997   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:  2050   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:  3956   Comments: 1
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:  3741   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:  2621   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:  3442   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:  4701   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:  4749   Comments: 1
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:  3090   Comments: 0
UP 39
Title:  UP 39
Description: 
Photo Date:  2/2/1989  Upload Date: 12/16/2010 6:34:34 PM
Location:  Laramie, WY
Author:  Jack Smith
Categories:  Roster
Locomotives:  UP 39(U50)
Views:  695   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:  2894   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:  2020   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:  282   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:  2798   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:  2311   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:  2169   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:  2152   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:  1007   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:  4429   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:  500   Comments: 1
UP 52, GE U50, NEW at the GE plant
Title:  UP 52, GE U50, NEW at the GE plant
Description:  UP 52, GE U50, NEW at the GE plant in Erie Pennsylvania. Equipped with experimental Cummins PT fuel system, rated at 5600-HP. Returned to OEM U50 GE fuel system in 10/1966 and returned to 5000-HP.
Photo Date:  8/25/1965  Upload Date: 9/2/2012 1:58:29 AM
Location:  Erie, PA
Author:  Frank Christoph
Categories:  Roster
Locomotives:  UP 52(U50)
Views:  5913   Comments: 1
UP 52
Title:  UP 52
Description:  Westbound stock train on the Nebraska Division's First Sub at Kearney. Date of photo approximate.
Photo Date:  6/1/1970  Upload Date: 1/13/2020 7:33:28 PM
Location:  Kearney, NE
Author:  Mike Woodruff
Categories: 
Locomotives:  UP 52(U50)
Views:  43   Comments: 1


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