French State Railway (État) ZZ 207 to 221
French State Railway Y 6020
In 1931 and 1932, the État ordered a total of 15 small station shunters of the type 12V100D HN5 from Baudet Donon Roussel. They had two axles, a 100-hp Mercedes diesel engine and a mechanical gearbox. Together with five locomotives of the same type ordered by other railways and two type 8V100 HN6 with a Renault diesel of the same output ordered by the État, there were 22 similar locomotives.
With the founding of the SNCF in 1938, they were numbered in the LZZ BD 10200 range. In 1946, they received new engines from Willème with 115 hp. A larger rebuild of 21 locomotives was carried out in 1960 and 1961, where they became Y 6020 to Y 6041. There they received new engines from the same manufacturer with 150 hp and a hydraulic transmission. Their withdrawals started around 1970.
Technical data
General
| Property | as built | rebuilt Y 6020 |
|---|---|---|
| Built | 1931-1932 | 1960-1961 |
| Manufacturers | Baudet Donon Roussel | |
| Wheel arrangement | B | |
| Gauge | 1,435 mm (Standard gauge) | |
Dimensions and weights
| Property | as built | rebuilt Y 6020 |
|---|---|---|
| Length | 8.89 m | |
| Wheelbase | 3.54 m | |
| Service mass | 28.7 t | 29.4 t |
| Adhesion mass | 28.7 t | 29.4 t |
| Rigid wheelbase | 3.54 m | |
| Axle load | 14.4 t | 14.7 t |
Power plant
| Property | as built | rebuilt Y 6020 |
|---|---|---|
| Engine | Mercedes Benz oder Renault | Willeme F6M 517P |
| Engine type | 6-cyl. diesel | |
Power
| Property | as built | rebuilt Y 6020 |
|---|---|---|
| Power source | diesel-mechanic | diesel-hydraulic |
| Indicated power | 74 kW (101 PS) | 110 kW (150 PS) |
| Top speed | 54 km/h | 60 km/h |
Calculated values
| Property | as built | rebuilt Y 6020 |
|---|---|---|
| Power-to-weight ratio | 2.6 kW/t | 3.7 kW/t |
| Adhesive weight/Total | 1 : 1.00 | |
