Data from "Locomotives of the Wrexham, Mold & Connah's Quay Ry," The Locomotive Magazine, Vol XI (15 March 1905), p. 41.. Hudswell works number was 119
Although the Duke, shown here, and the Dee, shown in Locobase 10497, shared the same boiler and grate, the earlier locomotive had taller drivers and a bit more coal bunker space.
Data from "Locomotives of the Wrexham, Mold & Connah's Quay Ry," The Locomotive Magazine, Volume XI (15 March 1905), p. 43. Hudswell works numbers were 178
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | Dee | Duke |
| Locobase ID | 10496 | 10497 |
| Railroad | Wrexham, Mold & Connah's Quay | Wrexham, Mold & Connah's Quay |
| Country | Great Britain | Great Britain |
| Whyte | 0-4-0ST | 0-4-0ST |
| Number in Class | 1 | 1 |
| Road Numbers | 9 / 402B | 7 / 401B |
| Gauge | Std | Std |
| Number Built | 1 | 1 |
| Builder | Hudswell, Clarke | Hudswell, Clarke |
| Year | 1872 | 1878 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 7.50 / 2.29 | 7.50 / 2.29 |
| Engine Wheelbase (ft / m) | 7.50 / 2.29 | 7.50 / 2.29 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 7.50 / 2.29 | 7.50 / 2.29 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 49,280 / 22,353 | 47,040 / 21,337 |
| Engine Weight (lbs / kg) | 49,280 / 22,353 | 47,040 / 21,337 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | 720 / 2.73 | 720 / 2.73 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.70 / 2 | 0.60 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 41 / 20.50 | 39 / 19.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 42.50 / 1080 | 36 / 914 |
| Boiler Pressure (psi / kPa) | 130 / 900 | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 20" / 330x508 | 13" x 20" / 330x508 |
| Tractive Effort (lbs / kg) | 8788 / 3986.17 | 10,375 / 4706.03 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.61 | 4.53 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 81 - 2" / 51 | 81 - 2" / 51 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 10 / 3.05 | 10 / 3.05 |
| Firebox Area (sq ft / m2) | ||
| Grate Area (sq ft / m2) | 8.50 / 0.79 | 8.50 / 0.79 |
| Evaporative Heating Surface (sq ft / m2) | 429 / 39.87 | 429 / 39.87 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 429 / 39.87 | 429 / 39.87 |
| Evaporative Heating Surface/Cylinder Volume | 139.63 | 139.63 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 1105 | 1105 |
| Same as above plus superheater percentage | 1105 | 1105 |
| Same as above but substitute firebox area for grate area | ||
| Power L1 | ||
| Power MT | ||