Prototype Era: 1936-1959 (#3985-1990-Present)
Features include:
• Boiler backhead with full details and printed gauges.
• Individually applied detail parts such as piping, valves, generators, etc.
• Blackened metal RP25 wheels.
• Eccentric cranks operating on both sides in correct direction.
• Front and rear engines (cylinders and coupled drive wheel sets), both pivot for 22" recommended min. radius.
• Pilot has open/closed positions. Coupler pocket can be inserted to mount coupler.
• Adjustable cab windows and opening doors.
• Headlights and tender lighting feature directional light change; number boards are also lighted.
• Five-pole, skewed armature motor with two flywheels for very smooth running.
• Cab hatches can be either closed or open.
• See-through running boards.
• Ready for aftermarket smoke unit installation with no soldering needed.
• Factory installed DCC sound board and speaker. The board and speaker are mounted in the tender.
• DCC decoder automatically senses the power supply type (either DC or NMRA compliant DCC system).

#3977, 3984
• Closed Cab
• No Ashpan
• Smoke Lifters
• Single Generator
• Black Wheel Tires
• Oil Tender
• Two-tone Grey Paint scheme