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, cast bar-type framing. The SNCF also fitted a Houlet superheater that used annular elements. (See Locobase 1053 for Locobase's description of this alternative to the Schmidt design.).
Despite the improvements, 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 Middle Run 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 / 2040 |
| 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 | |