Data from William V Cauchi, "The Locomotive History of the Isle of Wight Central Railway," The Locomotive Magazine, Vol VI (January 1901), p. 3. Works number 116.
This was a little dock tank for work at the Medina Wharf in Cowes. Later painted in the Isle of Wight Central colors of olive green lined with white.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Medina |
| Locobase ID | 10167 |
| Railroad | Cowes & Newport |
| Country | Great Britain |
| Whyte | 0-4-2ST |
| Number in Class | 1 |
| Road Numbers | 4 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Black, Hawthorn |
| Year | 1870 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.25 / 1.60 |
| Engine Wheelbase (ft / m) | 10.25 / 3.12 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.51 |
| Overall Wheelbase (engine & tender) (ft / m) | 10.25 / 3.12 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 13,440 / 6096 |
| Weight on Drivers (lbs / kg) | 25,760 / 11,685 |
| Engine Weight (lbs / kg) | 34,720 / 15,749 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 480 / 1.82 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.30 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 21 / 10.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 39 / 991 |
| Boiler Pressure (psi / kPa) | 140 / 970 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 17" / 254x432 |
| Tractive Effort (lbs / kg) | 5187 / 2352.79 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.97 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 67 - 1.875" / 48 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 32 / 2.97 |
| Grate Area (sq ft / m2) | 6 / 0.56 |
| Evaporative Heating Surface (sq ft / m2) | 304 / 28.25 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 304 / 28.25 |
| Evaporative Heating Surface/Cylinder Volume | 196.72 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 840 |
| Same as above plus superheater percentage | 840 |
| Same as above but substitute firebox area for grate area | 4480 |
| Power L1 | 2732 |
| Power MT | 467.63 |