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4/19/2024
 
 
 
 
 
Owner: Union Pacific Railroad Company
Model:Alco 4-6-6-4Built As:UP 3991 (4-6-6-4)
Serial Number:70180Order No:S-1879
Frame Number:21X32 cylinders, 69" driversBuilt:6/1943
Notes:Schenectady 06/1943, retired 03/1961
Other locos with this serial:  UP 3991(4-6-6-4)
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UP 4-6-6-4 #3991 - Union Pacific Challenger
Title:  UP 4-6-6-4 #3991 - Union Pacific Challenger
Description:  The engineer looks like a tiny toy compared to the massive hulk of this 4-6-6-4 Challenger steam locomotive. Built by Alco-Schenectady in June of 1943 (serial #70180), it's massive tractive effort of 97,352 lb helped move freight over the mountainous Western ranges until being "vacated" in June of 1961. Glenn H. Davis photo
Photo Date:  7/28/1954  Upload Date: 3/11/2020 6:24:13 AM
Location:  North Platte, NE
Author:  Gary Everhart
Categories:  Roster,Steam
Locomotives:  UP 3991(4-6-6-4)
Views:  480   Comments: 0


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