Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Combination Pilot & Beam w/Swivel Type Coupler (3,4,5)
SKU/Drawing Number: *#GSC 53008 3900
| Wheel Arrangement: | 4-6-6-4 |
| Scale to 1 ft.: | 2” |
| Drawing Title: | Combination Pilot & Beam w/Swivel Type Coupler (3,4,5) |
| DWG. Size (in): | 30x40 |