Data from A. Sampite, Les Chemins de Fer a Faible Trafic en France (Paris: Baudry et Cie, 1888), p. 49 and the article [], last accessed 23 Feb 2008, which details the tram locomotives shown in this entry. See also [
] for a history of these Freycinet Plan railways.
Otherwise known as Chemins de Fer Sur Route (Railways on the Road), tramways played an important secondary role in the narrow-gauge networks in France. At first comprising the Le Mans au Grand Luce (31 km) and Grand Luce a la Chartre (17 km) lines, the Sarthe eventually counted 416 route-km (258 route miles) in the Le Mans area by 1922.
Traffic initially was limited to 20 km/hour in town (13 mph) although authorities later conceded that speeds could increase to 25-30 km/h, and rail weight came to a petite 15 kg/meter (30 lb/yard).
The Tubize locomotives showed the typical tram locomotive profile. All the running gear was enclosed, which sometimes led to excessive heat during prolonged stops. The cylinders drove on the middle axle, while braking was applied to the two end axles. A Belpaire firebox and short boiler contributed to ready steaming, which was indispensable in a service that had so many stops and had to scale some testing grades. The engines were credited with a maximum speed of 45 km/h (28 mph) and a 35-tonne trainload of seven carriages. Although originally equipped with a motorman's position at each end, they later had just one and used turntables to change direction.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 11 |
Locobase ID | 9236 |
Railroad | Tramways de la Sarthe |
Country | France |
Whyte | 0-6-0T |
Number in Class | 4 |
Road Numbers | 11-14 |
Gauge | Metre |
Number Built | 4 |
Builder | Tubize |
Year | 1882 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 5.91 / 1.80 |
Engine Wheelbase (ft / m) | 5.91 / 1.80 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 5.91 / 1.80 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 28,660 / 13,000 |
Engine Weight (lbs / kg) | 28,660 / 13,000 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 16 / 8 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 32.70 / 830 |
Boiler Pressure (psi / kPa) | 169.70 / 1170 |
High Pressure Cylinders (dia x stroke) (in / mm) | 9.06" x 14.17" / 230x360 |
Tractive Effort (lbs / kg) | 5131 / 2327.39 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.59 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 39.81 / 3.70 |
Grate Area (sq ft / m2) | 7.21 / 0.67 |
Evaporative Heating Surface (sq ft / m2) | 207 / 19.26 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 207 / 19.26 |
Evaporative Heating Surface/Cylinder Volume | 195.78 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1224 |
Same as above plus superheater percentage | 1224 |
Same as above but substitute firebox area for grate area | 6756 |
Power L1 | 3552 |
Power MT | 819.69 |