Paris-Lyon-Mediterrannee 0-4-0 Locomotives in France


Class Details by Steve Llanso of Sweat House Media

Class 5 601 (Locobase 13368)

Data from the PLM Wiki vault crammed with data and plans at [link]. Data as of 1869.

These little maintenance-of-way switchers had a vertical boiler with two lengths of tubes. All of them had exterior diameters of 55 mm (2.17 inches), but the 30 long ones measured 850 mm long (33.5 inches) and the 68 short tubes were 500 mm long (19.7 inches).

The engines were renumbered 7 038-7 040 in 1911 and 7 001-7 003 in 1914-1918. All were still in use when the PLM went into the SNCF in 1938. Later they were rebuilt as crane tanks with a capstan winch in front using a 3-cylinder, steam-powered Brotherhood engine.


Class 7 004 (Locobase 13369)

Data from the PLM Wiki vault crammed with data and plans at [link]. Data as of 1925.

Similar in arrangement to the maintenance-of-way tank described in Locobase 13368, this pair came from Pittsburgh, PA after World War One. Both were later converted to gas-powered locomotives using a 7-hp Dake motor.

Principal Dimensions by Steve Llanso of Middle Run Media
Class5 6017 004
Locobase ID13368 13369
RailroadParis-Lyon-Mediterrannee (PLM)Paris-Lyon-Mediterrannee (PLM)
CountryFranceFrance
Whyte0-4-0T0-4-0T
Number in Class32
Road Numbers5 601-5 603/ 7 038-7 0402 395-2 400/ 7 004-7 005
GaugeStdStd
Number Built32
BuilderFives LilleFairbairn
Year19061856
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.25 / 1.60 8.37 / 2.55
Engine Wheelbase (ft / m) 5.25 / 1.60 8.37 / 2.55
Ratio of driving wheelbase to overall engine wheelbase11
Overall Wheelbase (engine & tender) (ft / m) 5.25 / 1.60 8.37 / 2.55
Axle Loading (Maximum Weight per Axle) (lbs / kg)16,711 / 758031,791 / 14,420
Weight on Drivers (lbs / kg)32,849 / 14,90064,375 / 29,200
Engine Weight (lbs / kg)32,849 / 14,90064,375 / 29,200
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)32,849 / 14,90064,375 / 29,200
Tender Water Capacity (gals / ML)467 / 1.77792 / 3
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.40 0.90 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)27 / 13.5054 / 27
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)27.60 / 70047.40 / 1204
Boiler Pressure (psi / kPa)142.10 / 980105.90 / 730
High Pressure Cylinders (dia x stroke) (in / mm)9.84" x 11.02" / 250x28016.54" x 24.02" / 420x610
Tractive Effort (lbs / kg)4670 / 2118.2812,479 / 5660.39
Factor of Adhesion (Weight on Drivers/Tractive Effort) 7.03 5.16
Heating Ability
Tubes (number - dia) (in / mm)133 - 1.969" / 50
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.29 / 3.44
Firebox Area (sq ft / m2)46.61 / 4.3367.92 / 6.31
Grate Area (sq ft / m2) 8.40 / 0.7810.87 / 1.01
Evaporative Heating Surface (sq ft / m2)167 / 15.50771 / 71.64
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)167 / 15.50771 / 71.64
Evaporative Heating Surface/Cylinder Volume172.17129.07
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation11941151
Same as above plus superheater percentage11941151
Same as above but substitute firebox area for grate area66237193
Power L126961555
Power MT361.88106.51

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