Southern Pacific AC-11
C52031
concept
The Southern Pacific AC-11 was a class of massive 4-8-8-2 articulated cab-forward steam locomotives built in the early 1940s for heavy freight service over the steep grades and long tunnels of the Southern Pacific Railroad’s mountain routes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Southern Pacific AC-11 canonical | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: Southern Pacific AC-11
Generated description
The Southern Pacific AC-11 was a class of massive 4-8-8-2 articulated cab-forward steam locomotives built in the early 1940s for heavy freight service over the steep grades and long tunnels of the Southern Pacific Railroad’s mountain routes.
Instances (1)
| Instance | Via concept surface |
|---|---|
| SP 4258 | — |