Union Pacific 4-6-6-4 Challenger Live Steam Locomotive

We offer you choices for building your own 7 1⁄4 - 7 1⁄2  inch gauge live steam model of the Union Pacific 4-6-6-4 Challenger:

• Rough castings
• Machined castings
• Machine drawings available with the purchase of our castings
• Partial construction available: machining and assembly of selected sections
• Reproductions of original Union Pacific Challenger drawings

Benefits of our Union Pacific Challenger offering:

• Scaled down from original Union Pacific railroad drawings: Ensures high model accuracy
• Unique among models: Largest, most powerful and only articulated model on the market
• Exceptionally high quality product: Fully capable of producing a museum quality model
• Professionally made patterns and molds: Cleaner, more accurate, beautiful castings
• Castings made by top commercial foundries: Top quality, fewer casting problems
• Top quality casting materials: Higher strength, better machinability, better finishes
• Precision CNC machine work available: Greater accuracy, better finishes, smoother running
• Hardened and ground parts available: Less wear, longer life expectancy
• Powder coating available: Long-term protection and durability
• Partial construction available: Our experience saves you time and guesswork