Biere-Apples-Morges 0-6-0 Locomotives in Switzerland


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 7125)

[link] (accessed 20 Nov 2005) is the home of the L'isle region and, in particular, the Apples-L'Isle narrow-gauge railway conceived by the four Swiss communes Isle, Montricher, Pampigny, and Apples to connect that group to the Biere-Apples-Morges.

After a study of alternatives, the alignment was chosen and Pumpin and Herzog of Bern took on the construction of the line for a fixed price of 610,000 Swiss francs on 12 March 1896. But the railway failed to make money from the start. At the same time, the BAM was proceeding with its own construction and after the bank called in the loans of the failed Jura de Vaud Apples-L'Isle, the BAM took over that rail line as well.

The Lisle website describes the three locomotives that the BAM took delivery of on 1 July 1895 (works 883-885) and the one delivered to the Apples-L'Isle in 1897, but does not give cylinder or driving wheel dimensions. Locobase found [link] (accessed 20 November 2005 as well) which describes the central Swiss Brunigbahn and the ten locomotives procured from SLM from 1887 to 1901. In addition, this site says, four more were supplied to the BAM and two to the CF de Montreux - Oberland Bernois (MOB). Locobase cannot swear that the cylinder and driver diameters were the same, but believes that it is likely that they were.

Principal Dimensions by Steve Llanso of Middle Run Media
Class1
Locobase ID7125
RailroadBiere-Apples-Morges
CountrySwitzerland
Whyte0-6-0T
Number in Class4
Road Numbers1-4
GaugeMetre
Number Built4
BuilderSLM
Year1894
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.20 / 2.50
Engine Wheelbase (ft / m) 8.20 / 2.50
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 8.20 / 2.50
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)55,997 / 25,400
Engine Weight (lbs / kg)55,997 / 25,400
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)686 / 2.60
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.60 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)31 / 15.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)41.30 / 1050
Boiler Pressure (psi / kPa)203.10 / 1400
High Pressure Cylinders (dia x stroke) (in / mm)12.2" x 18.9" / 310x480
Tractive Effort (lbs / kg)11,759 / 5333.80
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.76
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) 8.61 / 0.80
Evaporative Heating Surface (sq ft / m2)607 / 56.40
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)607 / 56.40
Evaporative Heating Surface/Cylinder Volume237.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1749
Same as above plus superheater percentage1749
Same as above but substitute firebox area for grate area
Power L1
Power MT

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