Data from [] (30 June 2003) and "Indian State Railways", The Locomotive, Volume 17 (15 April 1911), pp. 74; and "The Work of the British Engineering Standards Association as Applied to Locomotives and Rolling Stock: The Standardization of Locomotives for Indian Railways", Locomotive Magazine, Volume XXV [25] (15 August 1919), pp. 120-123. See also Cyril Hitchcock, "The Standardisation of Locomotives in India, 1910", Engineer, Volume 110 (28 October 1910), pp. 475; The Engineer's editors presented an emphatic dismissal of the notion of standarisation of types (e.g.: "Standard Goods", "Atlantic Passenger") in the same issue at p. 468. A rebuttal by "LS" appeared in the 11 November 1910 Engineer at p. 511.
These symmetrical Passenger Tanks had all inside motion that was, like the Belpaire boiler, identical to that of the British Engineering Standards Association SG (Standard Goods) 6-coupled freight engine. The PTs came in two sizes; this one used the smaller of the two SG boilers. (The same two boiler designs were used in the 4-4-0 SP design.)
See the HP 4-6-0 (Locobase 4241) for full description of the BESA intention and varying views of its utility.
Data from "The Work of the British Engineering Standards Association as Applied to Locomotives and Rolling Stock: The Standardization of Locomotives for Indian Railways", Locomotive Magazine, Volume XXV [25] (15 August 1919), pp. 120-123. See also Cyril Hitchcock, "The Standardisation of Locomotives in India, 1910", Engineer, Volume 110 (28 October 1910), pp. 475; The Engineer's editors presented an emphatic dismissal of the notion of standarisation of types (e.g.: "Standard Goods", "Atlantic Passenger") in the same issue at p. 468. A rebuttal by "LS" appeared in the 11 November 1910 Engineer at p. 511.
Locobase 2756 describes the first BESA Passenger Tank that appeared in 1906. Like the earlier design, the 1910 update all inside motion, Belpaire firebox, and Adams sliding-type rear bogie. Upgrading bridges and permanent way to accept higher axle loads allowed the incorporation of a larger boiler and firebox with more grate area.
See the HP 4-6-0 (Locobase 4241) for full description of the BESA intention and varying views of its utility.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | BESA/PT (1906) | BESA/PT (1910) |
Locobase ID | 2756 | 20735 |
Railroad | East Indian | East Indian |
Country | India | India |
Whyte | 2-6-4T | 2-6-4T |
Number in Class | ||
Road Numbers | ||
Gauge | 5'6" | 5'6" |
Number Built | ||
Builder | ||
Year | 1906 | 1910 |
Valve Gear | Stephenson | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 12.83 / 3.91 | 12.83 / 3.91 |
Engine Wheelbase (ft / m) | 34.25 / 10.44 | 34.25 / 10.44 |
Ratio of driving wheelbase to overall engine wheelbase | 0.37 | 0.37 |
Overall Wheelbase (engine & tender) (ft / m) | 34.25 / 10.44 | 34.25 / 10.44 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 33,600 | 34,496 / 15,647 |
Weight on Drivers (lbs / kg) | 100,800 / 45,722 | 103,712 / 47,043 |
Engine Weight (lbs / kg) | 172,480 / 78,236 | 177,632 / 80,573 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | 172,480 / 78,236 | 177,632 / 80,573 |
Tender Water Capacity (gals / ML) | 2400 / 9.09 | 2400 / 9.09 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 | 3.30 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 56 / 28 | 58 / 29 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 61.50 / 1562 | 61.50 / 1562 |
Boiler Pressure (psi / kPa) | 180 / 1240 | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18.5" x 26" / 470x660 | 18.5" x 26" / 470x660 |
Tractive Effort (lbs / kg) | 22,138 / 10041.64 | 22,138 / 10041.64 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.55 | 4.68 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 236 - 1.75" / 44 | 279 - 1.75" / 44 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 11.37 / 3.47 | 11.37 / 3.47 |
Firebox Area (sq ft / m2) | 128 / 11.89 | 150 / 13.94 |
Grate Area (sq ft / m2) | 25.30 / 2.35 | 27 / 2.51 |
Evaporative Heating Surface (sq ft / m2) | 1358 / 126.16 | 1603 / 148.92 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1358 / 126.16 | 1603 / 148.92 |
Evaporative Heating Surface/Cylinder Volume | 167.88 | 198.17 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 4554 | 4860 |
Same as above plus superheater percentage | 4554 | 4860 |
Same as above but substitute firebox area for grate area | 23,040 | 27,000 |
Power L1 | 4557 | 5367 |
Power MT | 299.00 | 342.26 |