| Title: |
UP 4-6-6-4 #3931 - Union Pacific Challenger |
| Description: |
Beautiful original photo of the 1937 Alco built Challenger just recently delivered to Union Pacific when this photo was taken by an unknown photographer. Specifics - class CSA-2, 69" drivers, impressive 255 psi boiler pressure, 22x32" cylinders (4), massive engine weight of 566,950 lb, impressive tractive effort of 97,305 lb. Union Pacific eventually had 105 4-6-6-4 Challengers on their roster before falling to the diesel revolution. This locomotive was converted to burn oil in 1944, renumbered to 3831, retired in June 1957. |
| Photo Date: |
8/1/1937 Upload Date: 3/4/2015 10:10:40 PM |
| Location: |
Topeka, KS |
| Author: |
Gary Everhart |
| Categories: |
Roster,Yard,Steam,Action |
| Locomotives: |
UP 3931(4-6-6-4) |
| Views: |
1076 Comments: 0 |
