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Japanese National Railways class EF81
The EF81 is a series of Bo-Bo-Bo locomotives for use under 1.5 kV DC and 20 kV AC. The prototype was completed in 1968 and a total of 160 further locomotives was completed by Hitachi and Mitsubishi by 1992. These were...
| Japanese National Railways class EF81Remove | |
|---|---|
| Variant | Standard |
| Built | 1968-1992 |
| Manufacturers | Hitachi;Mitsubishi |
| Wheel arrangement | BoBoBo |
| Gauge | 1067 mm |
| Length | 18600 mm |
| Service mass | 100800 kg |
| Top speed | 110 km/h |
| Power | 2550 kW |
| Engine |
General
| Property | Japanese National Railways class EF81 Standard Remove |
|---|---|
| Built | 1968-1992 |
| Manufacturers | Hitachi, Mitsubishi |
| Wheel arrangement | B-B-B |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | Japanese National Railways class EF81 Standard Remove |
|---|---|
| Length | 18.60 m |
| Service mass | 100.8 t |
| Adhesion mass | 100.8 t |
| Rigid wheelbase | 2.60 m |
| Axle load | 16.8 t |
Power
| Property | Japanese National Railways class EF81 Standard Remove |
|---|---|
| Power source | electric - AC/DC |
| Hourly power | 2,550 kW (3,467 PS) |
| Top speed | 110 km/h |
| Starting effort | 196.0 kN |
Calculated values
| Property | Japanese National Railways class EF81 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 5.05 |
| Power-to-weight ratio | 25.3 kW/t |
| Adhesive weight/Total | 1 : 1.00 |
