The first engine of this wheel arrangement in England, this engine's bogies were not symmetrically disposed under the boiler, notes Ahrons (1927). Some data from Data from [] (accessed 8 April 2005). The rear bogie, though of the same wheelbase (5 1/2 ft) as the front, was much closer to the drivers.
Data from [] (accessed 8 April 2005). This pair followed the 11 (Locobase 3653) into Wirral service 7 years later. The design had grown slightly and the round-top firebox exchanged for a Belpaire type of only slightly greater heating surface. Like the 11, its rear bogie was positioned closer to the drivers than the front.
Principal Dimensions by Steve Llanso of Sweat House Media | ||
---|---|---|
Class | 11 | 14 |
Locobase ID | 3653 | 6476 |
Railroad | Wirral Railway | Wirral Railway |
Country | Great Britain | Great Britain |
Whyte | 4-4-4T | 4-4-4T |
Number in Class | 1 | 2 |
Road Numbers | 11 | 14-15 |
Gauge | Std | Std |
Number Built | 1 | 2 |
Builder | Beyer, Peacock | Beyer, Peacock |
Year | 1896 | 1903 |
Valve Gear | Stephenson | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 7.50 / 2.29 | |
Engine Wheelbase (ft / m) | 30.17 / 9.20 | |
Ratio of driving wheelbase to overall engine wheelbase | 0.25 | |
Overall Wheelbase (engine & tender) (ft / m) | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 34,216 / 15,520 | |
Weight on Drivers (lbs / kg) | 68,096 / 30,888 | 68,320 / 30,989 |
Engine Weight (lbs / kg) | 134,008 / 60,785 | 134,848 / 61,166 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | 134,008 / 60,785 | 134,848 / 61,166 |
Tender Water Capacity (gals / ML) | 2280 / 8.64 | 2280 / 8.64 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.90 / 4 | 3.90 / 4 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 57 / 28.50 | 57 / 28.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 62 / 1575 | 63 / 1600 |
Boiler Pressure (psi / kPa) | 160 / 11 | 160 / 11 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 | 17" x 24" / 432x610 |
Tractive Effort (lbs / kg) | 15,214 / 6900.96 | 14,973 / 6791.65 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.48 | 4.56 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | ||
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | ||
Firebox Area (sq ft / m2) | 93 / 8.64 | 96 / 8.92 |
Grate Area (sq ft / m2) | 17.80 / 1.65 | 17.70 / 1.64 |
Evaporative Heating Surface (sq ft / m2) | 1021 / 94.89 | 1052 / 97.77 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1021 / 94.89 | 1052 / 97.77 |
Evaporative Heating Surface/Cylinder Volume | 161.93 | 166.85 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 2848 | 2832 |
Same as above plus superheater percentage | 2848 | 2832 |
Same as above but substitute firebox area for grate area | 14,880 | 15,360 |
Power L1 | 3897 | 4082 |
Power MT | 252.33 | 263.44 |