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4/23/2024
 
 
 
 
 
Owner: Union Pacific Railroad Company
Model:Alco 4-6-6-4Built As:UP 3985 (4-6-6-4)
Serial Number:70174Order No:S-1879
Frame Number:21X32 cylinders, 69" driversBuilt:6/1943
Notes:Challenger class 4664-4, donated to RRHMA.
Other locos with this serial:  UP 3985(4-6-6-4) CRR 676(4-6-6-4)
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UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:29 PM
Location:  Boone, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  515   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:29 PM
Location:  Boone, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  670   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:30 PM
Location:  Boone, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  499   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:30 PM
Location:  Boone, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  472   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:31 PM
Location:  Boone, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  470   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:32 PM
Location:  Boone, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  605   Comments: 3
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:37 PM
Location:  Denison, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  518   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:37 PM
Location:  Denison, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  449   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:38 PM
Location:  Denison, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  519   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:39 PM
Location:  Denison, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  379   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/10/2002  Upload Date: 11/24/2005 3:06:39 PM
Location:  Denison, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  472   Comments: 0
UP 3985
Title:  UP 3985
Description:  In the summer of 2002, UP hosted a number of excursions out of Chicago to Butler. Here we see the Challenger on the trestle over the CP mainline and Watertown-Plank Rd.
Photo Date:  6/10/2002  Upload Date: 1/19/2005 9:50:35 PM
Location:  Wauwatosa, WI
Author:  Brian Connolly
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  633   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:23 PM
Location:  Bertram, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  261   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:24 PM
Location:  Bertram, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  296   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:24 PM
Location:  Bertram, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  322   Comments: 2
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:25 PM
Location:  Bertram, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  290   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:26 PM
Location:  Bertram, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  437   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:33 PM
Location:  Clinton, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  628   Comments: 3
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:34 PM
Location:  Clinton, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  333   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:40 PM
Location:  Le Grand, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  376   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:40 PM
Location:  Le Grand, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  315   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:41 PM
Location:  Le Grand, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  482   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:42 PM
Location:  Le Grand, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  393   Comments: 2
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:42 PM
Location:  Tama, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  335   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:43 PM
Location:  Tama, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  309   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:44 PM
Location:  Tama, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  299   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/11/2002  Upload Date: 11/24/2005 3:06:22 PM
Location:  Tama, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  328   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/12/2002  Upload Date: 11/24/2005 3:06:35 PM
Location:  Clinton, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  453   Comments: 3
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/12/2002  Upload Date: 11/24/2005 3:06:35 PM
Location:  Clinton, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  296   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/12/2002  Upload Date: 11/24/2005 3:06:36 PM
Location:  Clinton, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  257   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/12/2002  Upload Date: 11/24/2005 3:06:36 PM
Location:  Clinton, IA
Author:  Matt Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  498   Comments: 0
UP 3985
Title:  UP 3985
Description:  West through the suburbs.
Photo Date:  6/15/2002  Upload Date: 11/26/2004 8:18:00 PM
Location:  Wheaton, IL
Author:  Todd Morgan
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  874   Comments: 1
UP Challenger 3985 stops
Title:  UP Challenger 3985 stops
Description: 
Photo Date:  6/16/2002  Upload Date: 2/6/2004 11:39:08 PM
Location:  West Chicago, IL
Author:  David Hallman
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  807   Comments: 3
UP 3985 pulls an excursion
Title:  UP 3985 pulls an excursion
Description: 
Photo Date:  6/16/2002  Upload Date: 2/6/2004 11:39:08 PM
Location:  West Chicago, IL
Author:  David Hallman
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  560   Comments: 0
UP Challenger 3985 gets moving on it's way to Wisconsin
Title:  UP Challenger 3985 gets moving on it's way to Wisconsin
Description: 
Photo Date:  6/16/2002  Upload Date: 2/6/2004 11:39:08 PM
Location:  West Chicago, IL
Author:  David Hallman
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  589   Comments: 0
UP 3985
Title:  UP 3985
Description:  Putting on a good show on her way to Milwaukee.
Photo Date:  6/16/2002  Upload Date: 11/26/2004 8:21:57 PM
Location:  Des Plaines, IL
Author:  Todd Morgan
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  418   Comments: 0
UP 3985
Title:  UP 3985
Description:  Luckily that coal train in the distance cleared in time!
Photo Date:  6/16/2002  Upload Date: 11/26/2004 8:24:40 PM
Location:  Winfield, IL
Author:  Todd Morgan
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  387   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/17/2002  Upload Date: 5/15/2009 3:38:10 AM
Location:  Nelson, IL
Author:  Larry Gholson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  270   Comments: 0
3985 "Challenger"
Title:  3985 "Challenger"
Description:  The special Union Pacific steam train is seen departing West Chicago, Illinois, June 18, 2002 heading west. It is headed to Saint Paul, Minnesota to be displayed later. At this time the 4-6-6-4 “Challenger” steam locomotive, #3985, is the largest operating in the world. There are two sets of driving wheels and the frame is “articulated.” This way the wheels turn separately of the main frame to operate better where the track has tight turns. This engine was built in 1943. UP retired it from regular service in 1957. It was restored to operation once again in 1981 for use on special trips by UP. They converted it to run with oil instead of coal in 1990. UP ordered 105 “Challenger” locomotives between 1936 and 1943. They are about 122 feet long and weigh more than 1 million pounds. 3985 is the only one in operation of the two remaining. That is me (RLJ II) on the left videotaping at age 18. (Canon 35mm S.L.R. camera, Kodak Gold 800 print film)
Photo Date:  6/18/2002  Upload Date: 5/8/2019 8:54:52 AM
Location:  West Chicago, IL
Author:  Robert Jackson (father)
Categories:  Steam,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  443   Comments: 2
UP "Challenger" #3985 at West Chicago
Title:  UP "Challenger" #3985 at West Chicago
Description:  The special Union Pacific steam train is seen departing West Chicago, Illinois, June 18, 2002 heading west. It is headed to Saint Paul, Minnesota to be displayed later. At this time the 4-6-6-4 “Challenger” steam locomotive, #3985, is the largest operating in the world. There are two sets of driving wheels and the frame is “articulated.” This way the wheels turn separately of the main frame to operate better where the track has tight turns. This engine was built in 1943. UP retired it from regular service in 1957. It was restored to operation once again in 1981 for use on special trips by UP. They converted it to run with oil instead of coal in 1990. UP ordered 105 “Challenger” locomotives between 1936 and 1943. They are about 122 feet long and weigh more than 1 million pounds. 3985 is the only one in operation of the two remaining. (Canon 35mm S.L.R. camera, Kodak Gold 800 print film)
Photo Date:  6/18/2002  Upload Date: 5/8/2019 9:48:04 AM
Location:  West Chicago, IL
Author:  Robert Jackson (father)
Categories:  Station,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  627   Comments: 2
UP 3985 "Challenger"
Title:  UP 3985 "Challenger"
Description:  The special Union Pacific steam train is seen departing West Chicago, Illinois, June 18, 2002 heading west. It is headed to Saint Paul, Minnesota to be displayed later. At this time the 4-6-6-4 “Challenger” steam locomotive, #3985, is the largest operating in the world. There are two sets of driving wheels and the frame is “articulated.” This way the wheels turn separately of the main frame to operate better where the track has tight turns. This engine was built in 1943. UP retired it from regular service in 1957. It was restored to operation once again in 1981 for use on special trips by UP. They converted it to run with oil instead of coal in 1990. UP ordered 105 “Challenger” locomotives between 1936 and 1943. They are about 122 feet long and weigh more than 1 million pounds. 3985 is the only one in operation of the two remaining. (Canon 35mm S.L.R. camera, Kodak Gold 800 print film)
Photo Date:  6/18/2002  Upload Date: 5/8/2019 10:23:07 PM
Location:  West Chicago, IL
Author:  Robert Jackson (father)
Categories:  Steam,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  236   Comments: 0
UP "Challenger" #3985 steam engine!!!!
Title:  UP "Challenger" #3985 steam engine!!!!
Description:  The special Union Pacific steam train is seen departing West Chicago, Illinois, June 18, 2002 heading west. It is headed to Saint Paul, Minnesota to be displayed later. At this time the 4-6-6-4 “Challenger” steam locomotive, #3985, is the largest operating in the world. There are two sets of driving wheels and the frame is “articulated.” This way the wheels turn separately of the main frame to operate better where the track has tight turns. This engine was built in 1943. UP retired it from regular service in 1957. It was restored to operation once again in 1981 for use on special trips by UP. They converted it to run with oil instead of coal in 1990. UP ordered 105 “Challenger” locomotives between 1936 and 1943. They are about 122 feet long and weigh more than 1 million pounds. 3985 is the only one in operation of the two remaining. That is me (RLJ II) on the left videotaping at age 18. (Canon 35mm S.L.R. camera, Kodak Gold 800 print film)
Photo Date:  6/18/2002  Upload Date: 5/8/2019 8:51:08 AM
Location:  West Chicago, IL
Author:  Robert Jackson (father)
Categories:  Steam,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  276   Comments: 2
UP 3985
Title:  UP 3985
Description:  3985 heading south after a visit to St. Paul, MN
Photo Date:  6/20/2002  Upload Date: 6/24/2007 12:22:25 AM
Location:  Rosemount, MN
Author:  Rick Oswald
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  884   Comments: 6
UP 3985 with 2x Tenders & 13x Car Train
Title:  UP 3985 with 2x Tenders & 13x Car Train
Description: 
Photo Date:  6/21/2002  Upload Date: 3/7/2016 11:39:54 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  1095   Comments: 0
UP 3985, 2x Auxiliary Tenders with Me & my Mom
Title:  UP 3985, 2x Auxiliary Tenders with Me & my Mom
Description: 
Photo Date:  6/21/2002  Upload Date: 12/21/2022 8:42:12 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  162   Comments: 0
UP 3985, 809, 814 & 904304
Title:  UP 3985, 809, 814 & 904304
Description: 
Photo Date:  6/21/2002  Upload Date: 8/11/2016 10:06:47 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  1157   Comments: 0
UP 3985 Fuel Tanks, Fire Box, Cab & Tender
Title:  UP 3985 Fuel Tanks, Fire Box, Cab & Tender
Description: 
Photo Date:  6/21/2002  Upload Date: 11/14/2022 8:39:20 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  78   Comments: 0
UP 3985 raining day
Title:  UP 3985 raining day
Description: 
Photo Date:  6/21/2002  Upload Date: 9/30/2015 2:06:30 AM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  857   Comments: 0
UP 3985 & Me in the Rain
Title:  UP 3985 & Me in the Rain
Description: 
Photo Date:  6/21/2002  Upload Date: 2/3/2014 10:06:14 AM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  1049   Comments: 0
UP 3985 Smoking Up
Title:  UP 3985 Smoking Up
Description: 
Photo Date:  6/21/2002  Upload Date: 12/2/2022 11:02:44 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  77   Comments: 0


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