Data from 1946 Beyer, Peacock catalogue hosted on Martyn Bane's website at [] (accessed 21 May 2006). See also Eng. Udaya Peeligama, "A Concise History Of Motive Power Development On Sri Lankan Railways", presented on the Institution of Engineers Sri Lanka-New South Wales Chapter website at [
], posted 7 September 2018, last accessed 3 August 2021. Beyer, Peacock works numbers were 6391-6399 in 1927, 6467-6480 in 1928, and 6678-6679 in 1930. Armstrong Whitworth (12) and Robert Stephenson & Company (12) completed this large class.
Batch #156 inaugurated Beyer, Peacock Ten-wheeler deliveries to the CGR. Quite small for the broad-gauge, these had low-drivers and the familiar Belpaire firebox. Many of which were named after British Governors of Ceylon,
Eng Peeligama describes this "majestic" design as the" culmination in the ultimate development of the NOA Classes ." These engines "epresented the finest and highly versatile steam locomotive type on the island. The most handsome of all steam Classes, they were the workhorses of the system hauling the fast expresses and heaviest goods trains in the steam era."
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | B1 |
Locobase ID | 7506 |
Railroad | Ceylon Government Railway |
Country | Ceylon |
Whyte | 4-6-0 |
Number in Class | 49 |
Road Numbers | |
Gauge | 5'6" |
Number Built | 49 |
Builder | several |
Year | 1927 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 10 / 3.05 |
Engine Wheelbase (ft / m) | 21.54 / 6.57 |
Ratio of driving wheelbase to overall engine wheelbase | 0.46 |
Overall Wheelbase (engine & tender) (ft / m) | 49.79 / 15.18 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 29,792 / 13,513 |
Weight on Drivers (lbs / kg) | 88,256 / 40,032 |
Engine Weight (lbs / kg) | 117,152 / 53,139 |
Tender Loaded Weight (lbs / kg) | 95,334 / 43,243 |
Total Engine and Tender Weight (lbs / kg) | 212,486 / 96,382 |
Tender Water Capacity (gals / ML) | 3960 / 15 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 53.50 / 1359 |
Boiler Pressure (psi / kPa) | 162.40 / 1120 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18.5" x 26" / 470x660 |
Tractive Effort (lbs / kg) | 22,960 / 10414.49 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.84 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 128 / 11.90 |
Grate Area (sq ft / m2) | 26.50 / 2.46 |
Evaporative Heating Surface (sq ft / m2) | 1180 / 109.67 |
Superheating Surface (sq ft / m2) | 160 / 14.87 |
Combined Heating Surface (sq ft / m2) | 1340 / 124.54 |
Evaporative Heating Surface/Cylinder Volume | 145.88 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4304 |
Same as above plus superheater percentage | 4820 |
Same as above but substitute firebox area for grate area | 23,282 |
Power L1 | 5836 |
Power MT | 437.35 |