Data from Ransome-Wallis (1959); Gustav Reder (Michael Reynolds, trans), The world of steam locomotives (New York: Putnam, 1974); and Hollingsworth (1982).
SNCF calculation of tractive effort yielded 46,958 lb. The only post-war example of a group of eight experimental Baltic engines planned before World War II, this relatively conventional compound locomotive was built on the frame of the turbine-powered example. (The other 7 would have been 3 simple-expansion 232.R and 4 compound 232.S;see Locobase 9979 and 9980)) Although it took advantage of the most recent steam locomotive innovations such as roller bearings and cast bar-type framing, French railroading was already beginning to electrify. Therefore, although this engine was quite satisfactory in service between Paris and Lille pulling 500-ton trains, it remained the only one of its class.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 232U |
| Locobase ID | 2465 |
| Railroad | SNCF |
| Country | France |
| Whyte | 4-6-4 |
| Number in Class | 1 |
| Road Numbers | 232 U1 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Corpet, Louvet & Cie |
| Year | 1949 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 14.40 / 4.39 |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 74.12 / 22.59 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 50,706 / 23,000 |
| Weight on Drivers (lbs / kg) | 152,000 / 68,950 |
| Engine Weight (lbs / kg) | 284,396 / 129,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 10,000 / 37.88 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 9.90 / 9 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 84 / 42 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 78.70 / 2000 |
| Boiler Pressure (psi / kPa) | 295.90 / 20.40 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.56" x 27.56" / 445x700 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 26.77" x 27.56" / 680x700 |
| Tractive Effort (lbs / kg) | 37,977 / 17226.10 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.00 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 55.70 / 5.18 |
| Evaporative Heating Surface (sq ft / m2) | 2098 / 195 |
| Superheating Surface (sq ft / m2) | 941 / 87.45 |
| Combined Heating Surface (sq ft / m2) | 3039 / 282.45 |
| Evaporative Heating Surface/Cylinder Volume | 271.58 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 16,482 |
| Same as above plus superheater percentage | 21,591 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |