Nord Belge / SNCB 2-8-0 Locomotives in Belgium


Class Details by Steve Llanso of Sweat House Media

Class Type 48 (Locobase 14874)

Data from SACM diagram UG Type 170 from Elsassische Maschinenbau AG from locomotive book supplied by Dany Machi at [] as

Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007). Additional information from Phil Dambly, "OnziFme pTriode, 1940-1946 - Reprise du + Nord Belge + (suite)" posted 24 November 2010 at Rixke Rail's Archives ([], last accessed 21 January 2013).

Locobase takes at his word Dambly's statement that these compound Consolidations were "absolutely identical" to the Nord 140As that began appearing in 1921 (Locobase 14873) and repeats the dimensions from the earlier entry. Dambly reports that these engines developed 2,000 horsepower and could pull 1,600 tonnes (1,764 short tons) up a 0.5% grade. They also would be pressed into service to haul heavy passenger trains.

NB: Tube and flue diameters are water side dimensions as used in Anglo-American practice. The fireside dimensions were as follows: 84 tubes had 65 mm (2.56"), 6 had 60 mm (2.36"); the larger flues measured 125 mm (4.9 in) on the fire side.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassType 48
Locobase ID14874
RailroadNord Belge / SNCB
CountryBelgium
Whyte2-8-0
Number in Class35
Road Numbers421-455/4821-4855 /48.001-48.035
GaugeStd
Number Built35
BuilderCockerill
Year1927
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)19.36 / 5.90
Engine Wheelbase (ft / m)27.76 / 8.46
Ratio of driving wheelbase to overall engine wheelbase 0.70
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)164,906 / 74,800
Engine Weight (lbs / kg)188,495 / 85,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)4253 / 16.11
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 6.60 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)69 / 34.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)61 / 1550
Boiler Pressure (psi / kPa)232.10 / 16
High Pressure Cylinders (dia x stroke) (in / mm)16.54" x 25.2" / 420x640
Low Pressure Cylinders (dia x stroke) (in / mm)22.44" x 27.56" / 570x700
Tractive Effort (lbs / kg)29,793 / 13513.89
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.54
Heating Ability
Tubes (number - dia) (in / mm)90 - 2.756" / 70
Flues (number - dia) (in / mm)24 - 5.236" / 133
Flue/Tube length (ft / m)14.76 / 4.50
Firebox Area (sq ft / m2)187.08 / 17.38
Grate Area (sq ft / m2)34.66 / 3.22
Evaporative Heating Surface (sq ft / m2)1546 / 143.59
Superheating Surface (sq ft / m2)484 / 45
Combined Heating Surface (sq ft / m2)2030 / 188.59
Evaporative Heating Surface/Cylinder Volume246.70
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation8045
Same as above plus superheater percentage9975
Same as above but substitute firebox area for grate area53,842
Power L112,789
Power MT683.90

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