20-3937-1 - Great Northern 4-6-6-4 Z-6 Challenger - 4001 Green
- Intricately Detailed, Die-Cast Boiler and Chassis
- Intricately Detailed, Die-Cast Tender Body
- Authentic Paint Scheme
- Die-Cast Locomotive Trucks
- Handpainted Engineer and Fireman Figures
- Metal Handrails, Whiste and Bell
- Metal Wheels and Axles
- Remote Controlled Proto-Coupler
- O Scale Kadee-Compatible Coupler Mounting Pads
- Prototypical Rule 17 Lighting
- Constant Voltage LED Headlight
- Operating LED Firebox Glow
- Operating LED Marker Lights
- Operating LED Numberboard Lights
- Lighted LED Cab Interior
- Operating Tender LED Back-up Light
- Powerful 7-Pole Precision Flywheel-Equipped Motor
- Synchronized Puffing ProtoSmoke System
- Steaming Quillable Whistle
- Locomotive Speed Control In Scale MPH Increments
- Wireless Drawbar
- 1:48 Scale Dimensions
- Onboard DCC/DCS Decoder
- Proto-Scale 3-2 3-Rail/2-Rail Conversion Capable
- Proto-Sound 3.0 With The Digital Command System Featuring Quillable Whistle With Freight Yard Proto-Effects
- Unit Measures: 30 3/4" x 2 1/2" x 4"
- Operates On O-72 Curves Steam DCC Features
- F0 Head/Tail light
- F1 Bell
- F2 Horn
- F3 Start-up/Shut-down
- F4 PFA
- F5 Lights (except head/tail)
- F6 Master Volume
- F7 Front Coupler
- F8 Rear Coupler
- F9 Forward Signal
- F10 Reverse Signal
- F11 Grade Crossing
- F12 Smoke On/Off
- F13 Smoke Volume
- F14 Idle Sequence 3
- F15 Idle Sequence 2
- F16 Idle Sequence 1
- F17 Extended Start-up
- F18 Extended Shut-down
- F19 Labor Chuff
- F20 Drift Chuff
- F21 One Shot Doppler
- F22 Coupler Slack
- F23 Coupler Close
- F24 Single Horn Blast
- F25 Engine Sounds
- F26 Brake Sounds
- F27 Cab Chatter
- F28 Feature Reset
