The Union Pacific Challenger: Our Signature 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

Built by Godshall's Custom Machine

Interested in building your own Challenger? Contact us — we’d love to hear from you.