Data from Wiener (1930) and from "Assam Bengal Railway-Design 1127", Beyer-Garrrat Patent Articulated Locomotives (Manchester, England: Beyer-Peacock & Company Limited, 1931), archived on flickr's Historical Railway Images at [], et seq, p. 28. Works numbers were 6385-6389 in 1931.
Principal Dimensions by Steve Llanso of Sweat House Media | |
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Class | T |
Locobase ID | 685 |
Railroad | Assam Bengal |
Country | India |
Whyte | 2-6-2+2-6-2 |
Number in Class | 5 |
Road Numbers | 401-405 |
Gauge | Metre |
Number Built | 5 |
Builder | Beyer, Peacock |
Year | 1927 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 17.83 / 5.43 |
Engine Wheelbase (ft / m) | 38.67 / 11.79 |
Ratio of driving wheelbase to overall engine wheelbase | 0.46 |
Overall Wheelbase (engine & tender) (ft / m) | 59 / 17.98 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 21,280 / 9652 |
Weight on Drivers (lbs / kg) | 127,680 / 57,915 |
Engine Weight (lbs / kg) | 202,048 / 91,648 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 202,048 / 91,648 |
Tender Water Capacity (gals / ML) | 2400 / 9.09 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.70 / 6.10 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 35 / 17.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 48 / 1219 |
Boiler Pressure (psi / kPa) | 180 / 12.40 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 24" / 356x610 (4) |
Tractive Effort (lbs / kg) | 29,988 / 13602.34 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.26 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 186 - 1.75" / 44 |
Flues (number - dia) (in / mm) | 26 - 5.25" / 133 |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 132 / 12.26 |
Grate Area (sq ft / m2) | 30 / 2.79 |
Evaporative Heating Surface (sq ft / m2) | 1430 / 132.85 |
Superheating Surface (sq ft / m2) | 268 / 24.90 |
Combined Heating Surface (sq ft / m2) | 1698 / 157.75 |
Evaporative Heating Surface/Cylinder Volume | 167.21 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 5400 |
Same as above plus superheater percentage | 6264 |
Same as above but substitute firebox area for grate area | 27,562 |
Power L1 | 7580 |
Power MT | 785.29 |