Saint Quentin a Guise Aisne 2-4-0 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class unknown (Locobase 9142)
Data from A. Sampite, Les Chemins de Fer a Faible Trafic en France (Paris: Baudry et Cie, 1888), p. 49. See also [
] for a history of these Freycinet Plan railways.
This railway operated in the Somme valley as part of the Reseau d'Interet Local network established under the 1877 Freycinet Law (see Locobase 9121). It connected Saint Quentin with Guise in the upper Oise valley and was primarily an industrial line. But when the railway went to Grafenstaden for motive power, it bought 3 of these engines for passenger service.
Sampite says these engines were used indiscriminately in all kinds of service, but were preferable to the 6-coupleds shown in Locobase 9143 for passenger work during which speeds could reach 45 km/h (28 mph).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 9142 |
| Railroad | Saint Quentin a Guise Aisne |
| Country | France |
| Whyte | 2-4-0T |
| Number in Class | 3 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 3 |
| Builder | Grafenstaden |
| Year | 1878 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 10.83 / 3.30 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 10.83 / 3.30 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 50,706 / 23,000 |
| Engine Weight (lbs / kg) | 73,193 / 33,200 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 792 / 3 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.30 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 59.10 / 1500 |
| Boiler Pressure (psi / kPa) | 127.60 / 880 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.54" x 23.62" / 420x600 |
| Tractive Effort (lbs / kg) | 11,859 / 5379.16 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.28 |
| 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) | 12.91 / 1.20 |
| Evaporative Heating Surface (sq ft / m2) | 946 / 87.94 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 946 / 87.94 |
| Evaporative Heating Surface/Cylinder Volume | 161.05 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1647 |
| Same as above plus superheater percentage | 1647 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |