Union Pacific 3900 Series 4-6-6-4 Challenger drawings, engine only- Rods – Main (3,4,5)
		SKU/Drawing Number: 723-CA-29717
			| Wheel Arrangement: | 4-6-6-4 | 
| Scale to 1 ft.: | 3” | 
| DWG. Size (in): | 24x30 | 
| Drawing Title: | Rods – Main (3,4,5) | 
			| Wheel Arrangement: | 4-6-6-4 | 
| Scale to 1 ft.: | 3” | 
| DWG. Size (in): | 24x30 | 
| Drawing Title: | Rods – Main (3,4,5) |