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Paris-Lyon-Méditerranée 242 AT
The 242 AT was the first of four series of 4-8-4T tank locomotives that the PLM had built to accelerate the suburban trains that departed from the Gare de Lyon in Paris. They replaced the 4-6-4T tank locomotives 232 A...
| Paris-Lyon-Méditerranée 242 ATRemove | |
|---|---|
| Variant | Standard |
| Built | 1926-1929 |
| Manufacturers | Fives-Lille;Batignolles-Châtillon;Schneider |
| Wheel arrangement | 2D2 t |
| Gauge | 1435 mm |
| Length | 17824 mm |
| Service mass | 120021 kg |
| Top speed | 95 km/h |
| Power | |
| Engine |
General
| Property | Paris-Lyon-Méditerranée 242 AT Standard Remove |
|---|---|
| Built | 1926-1929 |
| Manufacturers | Fives-Lille, Batignolles-Châtillon, Schneider |
| Wheel arrangement | 4-8-4T (Northern) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Paris-Lyon-Méditerranée 242 AT Standard Remove |
|---|---|
| Length | 17.82 m |
| Wheelbase | 14.35 m |
| Service mass | 120 t |
| Adhesion mass | 65 t |
| Rigid wheelbase | 5.90 m |
| Axle load | 16 t |
| Water capacity | 12,000 l |
| Fuel capacity | 5 t (coal) |
Boiler
| Property | Paris-Lyon-Méditerranée 242 AT Standard Remove |
|---|---|
| Grate area | 3.08 m² |
| Firebox surface | 16.16 m² |
| Tube heating surface | 157.29 m² |
| Evaporative heating surface | 173.45 m² |
| Superheater surface | 45.1 m² |
| Total heating surface | 218.6 m² |
Power plant
| Property | Paris-Lyon-Méditerranée 242 AT Standard Remove |
|---|---|
| Driver diameter | 1,650 mm |
| Boiler pressure | 16 bar |
| Expansion type | compound |
| Cylinders | four, HP: 420 x 650 mm and LP: 630 x 650 mm |
Power
| Property | Paris-Lyon-Méditerranée 242 AT Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,200 kW (1,632 PS) |
| Top speed | 95 km/h |
| Starting effort | 130.9 kN |
| Starting effort simple | 157.0 kN |
Calculated values
| Property | Paris-Lyon-Méditerranée 242 AT Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.87 |
| Optimal speed | 56 km/h |
| Power-to-weight ratio | 10.0 kW/t |
| Heating Surface Equivalent | 344.5 m² |
| Cylinder volume/HSE | 1 : 1,111.13 |
| Adhesive weight/Total | 1 : 1.85 |
| Tractive force/Heating surface | 1 : 12.51 |
| Grate area/Heating surface | 1 : 70.96 |
| Firebox/Tube surface | 1 : 9.73 |
| Total/Superheater | 1 : 3.85 |
