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3/4/2025
 
 
 
 
 
Owner: Union Pacific Railroad Company
Model:Alco 4-6-6-4Built As:UP 3939 (4-6-6-4)
Serial Number:72801Order No:S-1938
Frame Number:21X32 cylinders, 69" driversBuilt:8/1944
Notes:Schenectady 08/1944 (2nd #3939), retired 06/1959
Other locos with this serial:  UP 3939(4-6-6-4)
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UP 4-6-6-4 #3939
Title:  UP 4-6-6-4 #3939
Description:  Sadly, this montster steam locomotive was caught sitting in the scrap line at Cheyenne, WY. History - Alco-Schenectady, 8.1944, serial #72801, After almost 15 years of service, the loco was"vacated" in June of 1959. The date of the photo shows it in a storage/scrap line.Specs - 69" drivers, impressive 280psi boiler pressure, four 21x32" cylinders, engine weight of 634,500 lb and tractive effort of 97,350 lb. The photo was taken by an unknown photographer.
Photo Date:  10/2/1957  Upload Date: 2/26/2025 5:57:12 PM
Location:  Cheyenne, WY
Author:  Gary Everhart
Categories:  Roster,Steam,Action
Locomotives:  UP 3939(4-6-6-4)
Views:  14   Comments: 0


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