Data from [] photo and data website, last accessed 16 November 2006 and from Maurice Demoulin, Traite Pratique de la Machine Locomotive (Paris: Libraire Polytechnique, Baudry et Cie, 1898), pp. 77.
The SACM delivered these locomotives in batches from two different works. Grafenstaden supplied 25 (works #3536-3560) and Belfort produced the other 20 (works # 3756-3775).
Operating from sheds at ChGlons, Reims, Nancy, Troyes, Chaumont, Neufchateau, STzanne, Bar le Duc, Verdun, Epinal, and Chalindrey, these engines served mixed-traffic trains as well as connecting service to major long-distance trains.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 441 |
| Locobase ID | 7945 |
| Railroad | Est |
| Country | France |
| Whyte | 0-4-2 |
| Number in Class | 45 |
| Road Numbers | 441-485 |
| Gauge | Std |
| Number Built | 45 |
| Builder | SACM |
| Year | 1885 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.55 / 2.30 |
| Engine Wheelbase (ft / m) | 14.76 / 4.50 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.51 |
| Overall Wheelbase (engine & tender) (ft / m) | 33.55 / 10.22 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 58,974 / 26,750 |
| Engine Weight (lbs / kg) | 81,968 / 37,180 |
| Tender Loaded Weight (lbs / kg) | 51,544 / 23,380 |
| Total Engine and Tender Weight (lbs / kg) | 133,512 / 60,560 |
| Tender Water Capacity (gals / ML) | 2112 / 8 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 71.70 / 1820 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.93" x 24.02" / 430x610 |
| Tractive Effort (lbs / kg) | 11,835 / 5368.27 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.98 |
| 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) | 18.29 / 1.70 |
| Evaporative Heating Surface (sq ft / m2) | 1111 / 103.22 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1111 / 103.22 |
| Evaporative Heating Surface/Cylinder Volume | 177.52 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2652 |
| Same as above plus superheater percentage | 2652 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |