Data from [], supplemented by "New Tank Engines of the Eastern Railway of France", Railway Engineer, Volume 34, No 8 (August 1913), pp. 236-23
Bonnin describes this locomotive as typically Est. It had a Belpaire boiler, 21-element Schmidt superheater. The data refer to that variant--4402-4512. 4401 used the Mestre superheater
As late as 1957, the SNCF still had 102 141.TBs in service. In 1962, the surviving 74 replaced the 131 TBs, offering a boost in train weight from 330 to 440 tons. By the end of 1969, however, steam service on the V line had ended and the 141.TB was retired.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 141.TB |
| Locobase ID | 5109 |
| Railroad | Est |
| Country | France |
| Whyte | 2-8-2T |
| Number in Class | 112 |
| Road Numbers | 4401-4512 |
| Gauge | Std |
| Number Built | 112 |
| Builder | Epernay |
| Year | 1913 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 16.73 / 5.10 |
| Engine Wheelbase (ft / m) | 32.32 / 9.85 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 32.32 / 9.85 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 35,274 / 16,000 |
| Weight on Drivers (lbs / kg) | 132,277 / 60,000 |
| Engine Weight (lbs / kg) | 203,046 / 92,100 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2072 / 7.85 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.20 / 4 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 55 / 27.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 62.20 / 1580 |
| Boiler Pressure (psi / kPa) | 232.10 / 1600 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 21.65" x 25.94" / 550x659 |
| Tractive Effort (lbs / kg) | 38,565 / 17492.81 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.43 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 137 - 1.929" / 49 |
| Flues (number - dia) (in / mm) | 21 - 5.236" / 133 |
| Flue/Tube length (ft / m) | 13.78 / 4.20 |
| Firebox Area (sq ft / m2) | 127.70 / 11.86 |
| Grate Area (sq ft / m2) | 26.05 / 2.42 |
| Evaporative Heating Surface (sq ft / m2) | 1369 / 127.18 |
| Superheating Surface (sq ft / m2) | 393 / 36.51 |
| Combined Heating Surface (sq ft / m2) | 1762 / 163.69 |
| Evaporative Heating Surface/Cylinder Volume | 123.86 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 6046 |
| Same as above plus superheater percentage | 7376 |
| Same as above but substitute firebox area for grate area | 36,160 |
| Power L1 | 12,070 |
| Power MT | 804.67 |