Story
One of the 8 surviving engines of this class, currently being restored by the Steam Team of the UP.
Technical details
Series | 4000 / Big Boy |
Set-up | (2'D)D2' (4-8-8-4) |
Length | 40470 mm |
Diameter driving wheels | 1727 mm |
Weight full | 567 ton |
Overheated area | 190 m2 |
Grate area | 14 m2 |
Gear | Walschaerts |
Cilinders | 4: 603x813 mm |
Fuel capacity | coal: 25,4 ton |
Water capacity | 95 m3 |
Power | 4690 kW |
History
Date | Event | Owner | Series | Identification |
---|---|---|---|---|
1941 | Build for | Union Pacific Railroad | UP 4000 | / 4014 |
1961 | Donated to | Railway & Locomotive Historical Society | UP 4000 | / 4014 |
2013 | Sold to | Union Pacific Railroad | UP 4000 | / 4014 |
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