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NAME TRAIN TYPE OPERATORS UNION PACIFIC RAILROAD MUSEUM FIRST RUN 1941 LAST RUN 1962 POWER TYPE STEAM BUILDER AMERICAN LOCOMOTIVE COMPANY UIC (2 D) SERIAL NUMBER 69583 BUILD DATE NOVEMBER 1941 WHYTE 4-8-8-4 GAUGE 4FT 81/2 ( 1,435 MM ) LEADING DIAMETER 36 IN ( 914 MM ) DRIVER DIAMETER 68 IN ( 170 CM ) TRAILING DIAMETER 42 IN ( 1,067 MM ) ADHESIVE WEIGHT 540,000 LB LOCO WEIGHT 762,000 LB TOTAL WEIGHT 1,250,000 LB FUEL TYPE NO. 5 OIL (FORMERLY COAL) FUEL CAPACITY 28 SHORT TONS WATER CAP 24,000 US GALLONS FIREBOX 720 SQ FT MAXIMUM SPEED 80 MPH POWER OUTPUT 6290 HP TRACTIVE EFFORT 135,375 LBF
# 4012 WITH WHEELS – 4-8-8-4 CONFIGURATION
NATIONAL STEAM TOWN HISTORIC SITE
SCRANTON PENNSYVANIA