Midland & South-Western Junction / Swindon, Marlborough & Andover 0-6-0 Locomotives in Great_Britain


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 10142)

Data from "The Locomotives of the Midland & South-Western Junction Railway," The Locomotive Magazine, Volume V [5] (April 1900), p. 56; and "Tank Locomotive, Swindon, Marlborough and Andover Ry," Locomotive Magazine, Volume XXVIII [28] (15 May 1922), p 130-131. Works numbers were 1482-1484 in 1881.

These were the first of the SM&A's locomotives and thus the earliest of what would become the Midland & South Western Junction Railway. They were rebuilt in 1900 by the Avonside company.


Class 19-24 (Locobase 10156)

Data from "Locomotives of the Midland & South-Western Junction Railway," The Locomotive Magazine, Vol V (August 1900), p. 122. Works numbers were 4097-4102.

The LM article says these locomotives were purchased because development at the port of Southampton and the establishment of the Ludgershall military facility increased traffic demand. Note that they did NOT have Belpaire fireboxes.

Four more (4440-4443) would follow in 1903, but Locobase isn't sure if they were produced to the same design. They were taken into the Great Western during Grouping in 1923.


Class 4 (2nd) (Locobase 10147)

Data from "The Locomotives of the Midland & South-Western Junction Railway," The Locomotive Magazine, Vol V (June 1900), p. 89. Works number was 3164, 3168

The first of the two replacing the first #4 (a single Fairlie described in Locobase 7374), this pair of locomotive shared their boiler and firebox design with the single 4-4-0 (Locobase 10145) from earlier in the year and the three 2-4-0s (Locobase 10148) that immediately followed (and preceded) these all-adhesion tanks on the production line. Its smaller drivers didn't prevent the railway from using it on passenger work because they had fitted the engine with an automatic vacuum brake system.

Principal Dimensions by Steve Llanso of Middle Run Media
Class119-244 (2nd)
Locobase ID10142 10156 10147
RailroadSwindon, Marlborough & Andover (MSWJ)Midland & South-Western Junction (MSWJ)Midland & South-Western Junction (MSWJ)
CountryGreat BritainGreat BritainGreat Britain
Whyte0-6-0T0-6-00-6-0T
Number in Class362
Road Numbers1-319-24 / 1003-1011, 10134, 13 / 825, 843
GaugeStdStdStd
Number Built362
BuilderDubs & CoBeyer, PeacockDubs & Co
Year188118991894
Valve GearStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.50 / 3.2015.50 / 4.7215.33 / 4.67
Engine Wheelbase (ft / m)10.50 / 3.2015.50 / 4.7215.33 / 4.67
Ratio of driving wheelbase to overall engine wheelbase111
Overall Wheelbase (engine & tender) (ft / m)10.50 / 3.2015.33 / 4.67
Axle Loading (Maximum Weight per Axle) (lbs / kg)24,640 / 11,17729,288 / 13,28534,720 / 15,749
Weight on Drivers (lbs / kg)70,784 / 32,10784,224 / 38,20398,560 / 44,706
Engine Weight (lbs / kg)70,784 / 32,10784,224 / 38,20398,560 / 44,706
Tender Loaded Weight (lbs / kg)62,776 / 28,475
Total Engine and Tender Weight (lbs / kg)147,000 / 66,678
Tender Water Capacity (gals / ML)900 / 3.414800 / 18.181200 / 4.55
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.10 / 1 4.40 / 4 1.40 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)39 / 19.5047 / 23.5055 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 121962.50 / 158855 / 1397
Boiler Pressure (psi / kPa)140 / 970140 / 970150 / 1030
High Pressure Cylinders (dia x stroke) (in / mm)15.5" x 22" / 394x55918" x 26" / 457x66017" x 24" / 432x610
Tractive Effort (lbs / kg)13,104 / 5943.8816,039 / 7275.1816,079 / 7293.32
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.40 5.25 6.13
Heating Ability
Tubes (number - dia) (in / mm)160 - 1.75" / 44196 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.25 / 2.82
Firebox Area (sq ft / m2)70 / 6.5094.30 / 8.76106.78 / 9.92
Grate Area (sq ft / m2)15 / 1.3918 / 1.6716.62 / 1.54
Evaporative Heating Surface (sq ft / m2)749 / 69.581079 / 100.281047 / 97.30
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)749 / 69.581079 / 100.281047 / 97.30
Evaporative Heating Surface/Cylinder Volume155.89140.91166.06
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation210025202493
Same as above plus superheater percentage210025202493
Same as above but substitute firebox area for grate area980013,20216,017
Power L1256229533448
Power MT239.39231.89231.38

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