STEAM LOCOMOTIVE FEATURES:
• Illuminated number boards and headlights
• Headlight turns off in reverse
• Illuminated directional back-up light in the tender
• Correctly operating eccentric cranks
• Adjustable top cab vent and cab windows
• Pivoting front and rear engines for negotiating 18” radius curves
• Current pick-up on all driver and wheels
• Boiler backhead with full details and printed gauges
• Synchronized chuff, whistle, bell, blow-down, air compressor, dyno and
pop-off valve sounds
• User-controlled whistle, short whistle, bell, squeal, coupler crash,
injector, water stop and light dimmer
• Individually-applied detail parts, including brass-painted bell and whistle,
piping, valves, generator, steps, air pump, air tanks, reverser and
coupler lift bar
• Front coupler pocket can be inserted to mount operating coupler
• Dual cube speakers for great sound quality
• Lighted firebox flicker effect with see-through firebox door
• Upgraded headlight lighting with brighter LED
• Improved loco-to-tender connection harness for increased durability and
serviceability
• Minimum recommended radius: 22”
ROAD NUMBER SPECIFIC FEATURES:
• #3939 Class CSA-2, Worthington feedwater heater, standard sand dome, boiler-tube pilot with wide handrails, no walkway “hump”,
no steam pipe to front cylinders, unpainted metal side rods and glossy paint finish (to represent freshly-serviced and cleaned loco), oil burner.
Athearn research photos dated 1937, most likely UP publicity photos, show this unit pulling the “Challenger” streamlined passenger train out
of LAUPT, as well as a “photographer’s special” of twelve UP 40’ boxcars. Last CSA-2 challenger built. Era 1937+
