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NAME TRAIN TYPE FIRST RUN 1944 LAST RUN 1959 OPERATORS UNION PACIFIC RAILROAD MUSEUM POWER TYPE STEAM BUILDER AMERICAN LOCOMOTIVE COMPANY UIC (2 D)D2 H4 SERIAL NUMBER 69585 BUILD DATE SEPT 1941 WHYTE 4-8-8-4 GAUGE 4FT 81/2 ( 1,435 MM ) LEADING DIAMETER 36 IN ( 914 MM ) DRIVER DIAMETER 68 IN ( 1,727 MM ) TRAILING DIAMETER 42 IN ( 1,067 MM ) ADHESIVE WEIGHT 540,000 LB ( 245,000 KG ) LOCO WEIGHT 762,000 LB ( 345,600 KG ) TOTAL WEIGHT 1,250,000 LB ( 567,000 KG) FUEL TYPE NO. 5 OIL (FORMERLY COAL) FUEL CAPACITY 28 SHORT TONS ( 25.4 TONS ) 25.0 LONG TONS WATER CAP 25,000 US GALLONS ( 95,000 L ) 21,000 IMP GALOON FIREBOX 150 SQUARE FEET ( 14 METER SQUARE ) MAXIMUM SPEED 80 MPH ( 130 KM/H ) POWER OUTPUT 6290 HP ( 4,690 KW ) CYLINDER 4 CYLINDER SIZE 23.75 X 32 IN ( 603 MM X 813 MM ) TRACTIVE EFFORT 135,375 LBF ( 602 .18 KN )
# 4006 WITH WHEELS – 4-8-8-4 CONFIGURATION
MUSEUM OF TRANSPORTATION
ST LOUIS MISSOURI