Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Boxes – Driving Arrangement – Main (5)
SKU/Drawing Number: #163-CA-32182 C
| Wheel Arrangement: | 4-6-6-4 |
| Scale to 1 ft.: | 3” |
| Drawing Title: | Boxes – Driving Arrangement – Main (5) |
| DWG. Size (in): | 30x21 |