The reference for locomotives and railcars
Chicago, Milwaukee, St. Paul & Pacific (Milwaukee Road) classes EF-1, EF-2, EF-3 and EF-5
United States | 1915 | 42 produced
Side view of a double unit
Side view of a double unit
Locomotive Cyclopedia of American Practice, 1922
VariantEF-1rebuilt EF-2rebuilt EF-3rebuilt EF-5
ManufacturerGeneral Electric
Axle config2-B+B+B+B-2 2-B+B+2-B+B+B+B-2 2-B+B+B+B+B+B-2 2-B+B+2-B+B+B+B-2+B+B-2 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length112 ft 0 in168 ft 0 in224 ft 0 1/16 in
Wheelbase46 ft 7 in
Fixed wheelbase10 ft
Total wheelbase102 ft 8 in
Service weight564,000 lbs845,000 lbs794,000 lbs1,128,000 lbs
Power sourceelectric - DC
Electric system3,000 V
Continuous power3,339 hp (2,490 kW)5,009 hp (3,735 kW)6,678 hp (4,980 kW)
Top speed35 mph45 mph
Starting effort103,000 lbf154,500 lbf205,700 lbf
Power Plant
Calculated Values
electric locomotive
multi-section locomotive
last changed: 09 2023

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