Alsace-Lorraine 4-4-0 Locomotives in France


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 15507)

Data from SACM diagram Nr. 105 from Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [] as

Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007). See also See also G F Tyas, "Early Locomotives of the Alsace-Lorraine State Railways", Locomotive Magazine, Volume XXV [25] (15 April 1919), p. 59.

Tyas remarked that this design was "very like some of the French locomotives, with the exception of chimney, dome and safety valves, which were of the Prussian State Railway pattern." They "somewhat" resembled the De Glehn type of compounds.

An unusual feature was the internal dry pipe leading forward from the dome to a junction with the two outside steam pipes that dropped straight down to the valve chests. Allan valve gear operated on these chests outside of the frames.

Tube diameter is the interior measurement. External tube diameter was 46 mm (1.81").


Class unknown (Locobase 15508)

Data from SACM diagram Nr. 116 from Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [] as

Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007). See also G F Tyas, "Early Locomotives of the Alsace-Lorraine State Railways", Locomotive Magazine, Volume XXV [25] (15 April 1919), p. 58.

Tyas wrote that these De Glehn cross-compounds "worked the fastest and heaviest trains for some considerable time."

Tube diameter is the interior measurement. External tube diameter was 46 mm (1.81"); the resulting "water side" area was 1,335 sq ft (124.03 sq m) and with firebox heating surface area, 1,428 sq ft (132.67 sq m).

Principal Dimensions by Steve Llanso of Sweat House Media

Classunknownunknown
Locobase ID15507 15508
RailroadAlsace-LorraineAlsace-Lorraine
CountryFranceFrance
Whyte4-4-04-4-0
Number in Class10
Road Numbers
GaugeStdStd
Number Built10
BuilderSACMSACM
Year18931902
Valve GearAllanWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.79 / 2.38 7.71 / 2.35
Engine Wheelbase (ft / m)21.54 / 6.5621.54 / 6.56
Ratio of driving wheelbase to overall engine wheelbase 0.36 0.36
Overall Wheelbase (engine & tender) (ft / m)40.53 / 12.3640.53 / 12.36
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)108,688 / 49,300119,049 / 54,000
Tender Loaded Weight (lbs / kg)79,366 / 36,00081,571 / 37,000
Total Engine and Tender Weight (lbs / kg)188,054 / 85,300200,620 / 91,000
Tender Water Capacity (gals / ML)3960 / 153960 / 15
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.50 / 5 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)72.80 / 185072.80 / 1850
Boiler Pressure (psi / kPa)174 / 12171.10 / 11.80
High Pressure Cylinders (dia x stroke) (in / mm)18.31" x 24.41" / 465x62019.09" x 24.41" / 485x620 (1)
Low Pressure Cylinders (dia x stroke) (in / mm)28.74" x 24.41" / 730x620 (1)
Tractive Effort (lbs / kg)16,626 / 7541.4412,331 / 5593.25
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)228 - 1.614" / 41226 - 1.614" / 41
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14.60 / 4.4512.47 / 3.80
Firebox Area (sq ft / m2)91.39 / 8.4992.46 / 8.59
Grate Area (sq ft / m2)22.17 / 2.0621.85 / 2.03
Evaporative Heating Surface (sq ft / m2)1324 / 123.021283 / 119.20
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1324 / 123.021283 / 119.20
Evaporative Heating Surface/Cylinder Volume177.98317.32
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation38583739
Same as above plus superheater percentage38583739
Same as above but substitute firebox area for grate area15,90215,820
Power L150543954
Power MT

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