Denver & Rio Grande Western
During The World War Ii Industrial Production Was Overseen And Regulated By The Federal War Production Board. When The Up Placed Their 2Nd Challenger Order With Alco In 1943 The Wpb Stepped In And Had 5 Of The Locomotives Built For The Denver & Rio Grande Western Rr To Help Fulfill Their Need For Additional Motive Power To Haul Wartime Traffic. These 5 Locomotives Were Built To Up’S Specifications.
Road Number Specific Features:
#3803
- Coal Burner
- Dual Smoke Stacks. Era: 1944-1946.
Steam Locomotive Features:
- Dcc-Ready Features Quick Plug Plug-And-Play Technology
- Scaled From Prototype Resources Including Drawings, Field Measurements, Photographs, And More
- Accurately-Painted And Printed Paint Schemes
- Full Cab Interior With Boiler Backhead With Printed Gauges
- Individually Applied Piping, Valves, Generators, Etc.
- Operating Eccentric Cranks On Both Sides Operating In Correct Direction
- Headlights And Indicator Number Boxes (Number Boards) With Directional Light Change
- Five Pole, Skewed Armature Motor With Flywheel For Smooth Operation
- Pivoting Front And Rear Engines For Negotiating 11 Radius Curves
- See-Through Running Boards
- See-Through Cab Windows
- Mchenry Scale Knuckle Couplers
- Led Lighting For Realistic Appearance
- Fully-Assembled And Ready-To-Run
- Heavy Die-Cast Frame For Greater Traction And More Pulling Power
- Packaging Securely Holds For The Model For Safe Storage
- Minimum Recommended Radius: 15
Sound Equipped Models Also Feature
- Tender-Mounted Dcc Decoder With Soundtraxx Tsunami2 Sound
- Sound, Units Operate In Both Dc And Dcc
- Full Dcc Functions Available When Operated In Dcc Mode
- Engine, Whistle, And Bell Sounds Work In Dc
- All Functions Nmra Compatible In Dcc Mode
- Excellent Slow Speed Control
- Many Functions Can Be Altered Via Configuration Value (Cv) Changes
- Cv Chart Included In The Box
Prototype Specific Information
The Name “Challenger” Was Given To Steam Locomotives With A 4-6-6-4 Wheel Arrangement. This Means That They Have Four Wheels In The Leading Pilot Truck, Which Helps Guide The Locomotive Into Curves, Two Sets Of Six Driving Wheels, And Finally Four Trailing Wheels, Which Support The Rear Of The Engine And Its Massive Firebox. Each Set Of Six Driving Wheels Is Driven By Two Steam Cylinders. In Essence, The Result Is Two Engines Under One Boiler. The Union Pacific Railroad Sponsored Development Of This Type To Meet The Need For Higher Speeds In Main-Line Service. Historically, Articulated Locomotives Had Been Limited To Slow Speeds By Factors Inherent In Their Design. The Technical Breakthroughs Achieved With The Big Boy Enabled The Carrier To Develop A Newer, Improved Challenger That Met Their Speed Expectations.
Though Originally Intended For Freight Service, Many Challengers Were Used In Passenger Service.
Product Specifications
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