Data from [] (accessed 8 April 2005). This was the Wirral's only 4-4-2 tank. It had a long wheelbase and apparently plenty of adhesion. A review of the SH&D's 0-4-4Ts (Locobase 6477) suggest that this was a one-off to examine the relative merits of a leading axle; its boiler was smaller. Still #1 lasted on the railway until grouping.
Writing in Railway Magazine in 1954, W A Tuplin, the noted locomotive observer who grew up along the Wirral, summarized his view of the 1: "[It] seemed to me rather a weak oddity ..."
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 1 |
Locobase ID | 6475 |
Railroad | Wirral Railway |
Country | Great Britain |
Whyte | 4-4-2T |
Number in Class | 1 |
Road Numbers | 1 |
Gauge | Std |
Number Built | 1 |
Builder | Beyer, Peacock |
Year | 1892 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 58,016 / 26,316 |
Engine Weight (lbs / kg) | 107,744 / 48,872 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 2280 / 8.64 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.90 / 4 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 62 / 1575 |
Boiler Pressure (psi / kPa) | 140 / 970 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
Tractive Effort (lbs / kg) | 11,793 / 5349.22 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.92 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 89 / 8.27 |
Grate Area (sq ft / m2) | 15.75 / 1.46 |
Evaporative Heating Surface (sq ft / m2) | 982 / 91.26 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 982 / 91.26 |
Evaporative Heating Surface/Cylinder Volume | 175.83 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2205 |
Same as above plus superheater percentage | 2205 |
Same as above but substitute firebox area for grate area | 12,460 |
Power L1 | 3696 |
Power MT | 280.90 |