Baldwin No. 58501 (12-OE-1000/1 CC)
United States 1925 1 produced
In 1925, Baldwin turned out boxcab No. 58501 that can be considered the USA's first diesel locomotive. Its official designation 12-OE-1000/1 CC can be understood as “12 cylinders, oil engine, single 1000 hp engine, wheel arrangement CC”. In fact the middle axle of each bogie was not powered, leading to the A1A-A1A wheel arrangement. Power came from an inverted Knudsen V12 two-stroke diesel that sat between the two cabs. After trials, the locomotive was deemed unsuccessful and scrapped after a short time.
Technical data
General
- Built
- 1925
- Manufacturers
- Baldwin
- Wheel arrangement
- A1A-A1A
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 15.89 m
- Wheelbase
- 11.68 m
- Service mass
- 124.7 t
- Adhesion mass
- 81.6 t
- Rigid wheelbase
- 3.86 m
Power plant
- Engine
- Knudsen
- Engine type
- V12 diesel
- Cylinders
- twelve
Power
- Power source
- diesel-electric
- Indicated power
- 746 kW (1,014 PS)
- Starting effort
- 232.2 kN
Calculated values
- Factor of adhesion
- 1 : 3.45
- Power-to-weight ratio
- 6.0 kW/t
- Adhesive weight/Total
- 1 : 1.53
