Data from "The Locomotives of the Midland & South-Western Junction Railway," The Locomotive Magazine, Vol V (June 1900), p. 90-91. Works number was 3682..
This was a single example on the MSWJ of what was a popular arrangement for mixed-traffic locomotives that would be operated stop-and-go.
Data from Titre Exposition universelle internationale de 1878 a Paris. Rapports du jury internationale..Volume Groupe VI - Classe 64. Rapport sur le materiel des chemins de fer. p. 50 (cnum.cnam.fr/CGI/fpage.cgi?8XAE277-11.1/54/100/312/0/0 (accessed 1 September 2005) table and page 89, [] (accessed 7 Jan 2006), and "The Locomotives of the Midland & South-Western Junction Railway," The Locomotive Magazine, Vol V (April 1900), p. 56
The steamindex summary tells us that this single Fairlie was Avonside's works #1244 that was shown at the Paris Exposition and then sold to the SM & A railway. Unlike most other Fairlie designs, a single boiler lay over the running gear on a rigid frame.
A check of a website dealing with the successor railway (the MSWJ) -- [] (accessed 7 January 2006) -- describes the line as "The Midland & South Western Junction Railway ...a minor railway of just under 60 route miles". An associated table shows that during its time with the SM & A, its working boiler pressure was raised from 120 psi to 140 psi. It was withdrawn in 1892. A listing in [
] ("MICK'S FIELD SOURCE GUIDE TO MAGAZINE ENTRIES FOR THE SOUTHERN RAILWAY" also accessed on 7 January 2006) says its boiler was later used as a stationary boiler at Cirencester.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 15 | B |
Locobase ID | 10152 | 7374 |
Railroad | Midland & South-Western Junction (MSWJ) | Swindon, Marlborough & Andover (MSWJ) |
Country | Great Britain | Great Britain |
Whyte | 0-4-4T | 0-4-4T |
Number in Class | 1 | 1 |
Road Numbers | 15 / 23 | 4 |
Gauge | Std | Std |
Number Built | 1 | 1 |
Builder | Beyer, Peacock | Avonside |
Year | 1895 | 1878 |
Valve Gear | Stephenson | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 7.50 / 2.29 | 6.50 / 1.98 |
Engine Wheelbase (ft / m) | 21.58 / 6.58 | |
Ratio of driving wheelbase to overall engine wheelbase | 0.30 | |
Overall Wheelbase (engine & tender) (ft / m) | 15.58 / 4.75 | 21.58 / 6.58 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 35,336 / 16,028 | |
Weight on Drivers (lbs / kg) | 67,144 / 30,456 | 52,911 / 24,000 |
Engine Weight (lbs / kg) | 107,184 / 48,618 | 97,003 / 44,000 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | 1440 / 5.45 | |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.20 / 2 | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 56 / 28 | 44 / 22 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 62 / 1575 | 66 / 1676 |
Boiler Pressure (psi / kPa) | 150 / 1030 | 140 / 970 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 | 16" x 22" / 406x559 |
Tractive Effort (lbs / kg) | 14,264 / 6470.05 | 10,155 / 4606.24 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.71 | 5.21 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 181 - 2" / 51 | |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 10.79 / 3.29 | |
Firebox Area (sq ft / m2) | 96.60 / 8.98 | 72 / 6.69 |
Grate Area (sq ft / m2) | 17.70 / 1.64 | 15.50 / 1.44 |
Evaporative Heating Surface (sq ft / m2) | 1026 / 95.35 | 1094 / 101.67 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1026 / 95.35 | 1094 / 101.67 |
Evaporative Heating Surface/Cylinder Volume | 162.73 | 213.69 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 2655 | 2170 |
Same as above plus superheater percentage | 2655 | 2170 |
Same as above but substitute firebox area for grate area | 14,490 | 10,080 |
Power L1 | 3710 | 4374 |
Power MT | 243.63 | 364.50 |