Alexandra Docks 0-6-0 Locomotives in Great_Britain

Class Details by Steve Llanso of Sweat House Media

Class Alexandra (Locobase 10197)

Data from "Six-Coupled Side Tank Enginer", Locomotive Magazine, Vol VI (July 1901), p. 125. Works number was 911. Driver diameter is missing, so the figure given is an estimate.

Locobase bases his identification of the operator of this locomotive based on later buys by the ADR of Barclay tanks. The author repeats "Messrs Barclay" assertion that "The rigidity of framing is one of the features [they] believe in for tank engines, maintaining that all roads and conditions of running should be such as to allow of stiff framing to be used if possible."

An interesting point of view, given the preference in much of North American railroading for locomotives that could "work a bit" on indifferent track and still do the job.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID10197
RailroadAlexandra Docks
CountryGreat Britain
Number in Class1
Road Numbers
Number Built1
BuilderAndrew Barclay
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.50 / 3.81
Engine Wheelbase (ft / m)12.50 / 3.81
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)12.50 / 3.81
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)86,800 / 39,372
Engine Weight (lbs / kg)86,800 / 39,372
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)86,800 / 39,372
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)48 / 24
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 1295
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)16,384 / 7431.67
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.30
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)11.50 / 1.07
Evaporative Heating Surface (sq ft / m2)865 / 80.39
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)865 / 80.39
Evaporative Heating Surface/Cylinder Volume154.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1840
Same as above plus superheater percentage1840
Same as above but substitute firebox area for grate area
Power L1
Power MT

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Wes Barris