Data from Richard Marsden, "The Robinson Class S1 0-8-4 Tank Locomotives" on his LNER Encyclopedia website at [], last accessed 23 July 2023; and "GCR/LNER Robinson "S1" Class 0-8-4T", BRDatabase website at
Principal Dimensions by Steve Llanso of Sweat House Media | |
---|---|
Class | S1 - superheated |
Locobase ID | 8916 |
Railroad | LNER |
Country | Great Britain |
Whyte | 0-8-4T |
Number in Class | 6 |
Road Numbers | |
Gauge | Std |
Number Built | 2 |
Builder | LNER |
Year | 1932 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 17.19 / 5.24 |
Engine Wheelbase (ft / m) | 31.17 / 9.50 |
Ratio of driving wheelbase to overall engine wheelbase | 0.55 |
Overall Wheelbase (engine & tender) (ft / m) | 31.17 / 9.50 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 43,456 / 19,711 |
Weight on Drivers (lbs / kg) | 169,456 / 76,864 |
Engine Weight (lbs / kg) | 233,520 / 105,923 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 233,520 / 105,923 |
Tender Water Capacity (gals / ML) | 3216 / 12.18 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 71 / 35.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 56 / 1422 |
Boiler Pressure (psi / kPa) | 180 / 12.40 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 26" / 457x660 (3) |
Tractive Effort (lbs / kg) | 34,523 / 15659.39 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.91 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 15.33 / 4.67 |
Firebox Area (sq ft / m2) | 151 / 14.03 |
Grate Area (sq ft / m2) | 26.54 / 2.47 |
Evaporative Heating Surface (sq ft / m2) | 1500 / 139.35 |
Superheating Surface (sq ft / m2) | 242 / 22.48 |
Combined Heating Surface (sq ft / m2) | 1742 / 161.83 |
Evaporative Heating Surface/Cylinder Volume | 130.59 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4777 |
Same as above plus superheater percentage | 5446 |
Same as above but substitute firebox area for grate area | 30,985 |
Power L1 | 6484 |
Power MT | 337.43 |