Union Pacific Challenger No. 3985
Articulated power with a different balance.
Bring the engine
to life.
Start with the suggested palette or choose your own colours. Build gentle layers around the engine's distinctive shapes.
Suggested pencil shades and approximate screen swatches. These are not historical paint specifications.
Start lightly and build the darker surfaces gradually. Preserve the printed details.
Leave fine white highlights to separate the moving parts.
Keep the surroundings quieter than the locomotive. Retain light sky areas.
Look a little closer.
Challenger No. 3985 working through Nevada in black with a grey smokebox and pale number details. Read each caption before using it as a colour or configuration reference.
Challenger No. 3985 working through Nevada in black with a grey smokebox and pale number details. Photograph of the named locomotive. Preserved appearance may differ from its original working condition.
Drew Jacksich from San Jose, CA, The Republic of California · CC BY 2.0 · Source photograph. Resized and converted to WebP.
Side view of No. 3985 working across a level crossing, with black boiler and tender surfaces and a grey front. Photograph of the named locomotive. Preserved appearance may differ from its original working condition.
Jonathan Thorne · CC BY-SA 2.0 · Source photograph. Resized and converted to WebP.
Head-on preserved view of No. 3985 showing its grey smokebox front, black bodywork and pale number boards. Photograph of the named locomotive. Preserved appearance may differ from its original working condition.
NAParish from Oakland, CA · CC BY-SA 2.0 · Source photograph. Resized and converted to WebP.
Cab detail of No. 3985 showing a dark boiler backhead, red valve handles and green interior surfaces. Photograph of the named locomotive. Preserved appearance may differ from its original working condition.
Michael Hicks from Saint Paul, MN, USA · CC BY 2.0 · Source photograph. Resized and converted to WebP.
Cab interior of No. 3985, with green seats and wall panels, black fittings and red control handles. Photograph of the named locomotive. Preserved appearance may differ from its original working condition.
Michael Hicks from Saint Paul, MN, USA · CC BY 2.0 · Source photograph. Resized and converted to WebP.
Know the version.
Union Pacific records that No. 3985 was converted from coal to oil firing in 1990. Compare the photograph date and tender details before following a preservation view. The charcoal palette suggests its dark appearance without claiming an exact original paint specification.
The pencil example uses black and cool grey. Its palette is interpretive. The gallery records the particular appearances described in its captions; preserved engines, replicas and monochrome photographs cannot establish every original shade or marking.
Union Pacific: Challenger No. 3985Did you know?
Union Pacific donated No. 3985 to Railroading Heritage of Midwest America in 2022, beginning another chapter in its preservation story.
Make the details count.
Leave clear light gaps around both driving-wheel groups.
Keep the broad tender side quieter than the articulated machinery.