Data from Richard Marsden of [] (visited 11 December 2004).
A deep Belpaire firebox follows a high-pitched boiler over an inside-cylinder power unit that has all four driver sets under shallow splashers. James Stirling ordered these locomotives to handle the increased coal traffic to Hull's Alexandra Dock. They had two nicknames -- Sandholme Bankers, for the difficult pusher work they had to perform on that grade, and "Tinies", the ironically affectionate term usually applied to outsized locomotives.
Although initially operated at 200 psi, the H & B determined that maintenance costs could be cut significantly by dropping the pressure to 175. They were taken into the LNER at grouping, but once they were replaced in their primary service to the Hull docks, the Q10s were surplus to requirements and all were withdrawn by 1931.
Data from "Mineral Locomotive, Hull & Barnsley Ry" The Locomotive Magazine, Vol XIII (15 July 1907), p.116. See also Richard Marsden's LNER Encyclopedia entry at [], last accessed 4 July 2009.
Matthew Stirling designed this powerful group of all-adhesion engines to haul coal to Alexandra Dock in Hull. They had Belpaire fireboxes and were considerably larger than the earlier H & B locomotives. Marsden comments that the first ten were ordered for 3,650 pounds sterling each, but when the last batch of 5 was ordered, a squeeze on materials jacked the price up to 4,260 pounds each.
Boiler pressure was later reduced to 175 psi.
Although they were sturdy and reliable, post-World War One conditions rendered them surplus to requirements. Although they were taken into the LNER and designated Q10, the class was retired in 1931.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | A / Q10 | A / Q10 |
Locobase ID | 6416 | 10619 |
Railroad | Hull & Barnesly | Hull & Barnsley |
Country | Great Britain | Great Britain |
Whyte | 0-8-0 | 0-8-0 |
Number in Class | 15 | 15 |
Road Numbers | 117 | |
Gauge | Std | Std |
Number Built | 15 | 15 |
Builder | Yorkshire Engine | Yorkshire Engine |
Year | 1907 | 1906 |
Valve Gear | Stephenson | Allan |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 16.50 / 5.03 | 16.50 / 5.03 |
Engine Wheelbase (ft / m) | 16.50 / 5.03 | 16.50 / 5.03 |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 |
Overall Wheelbase (engine & tender) (ft / m) | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 37,856 / 17,171 | |
Weight on Drivers (lbs / kg) | 137,872 / 62,538 | 137,872 / 62,538 |
Engine Weight (lbs / kg) | 137,872 / 62,538 | 137,872 / 62,538 |
Tender Loaded Weight (lbs / kg) | 89,376 / 40,540 | |
Total Engine and Tender Weight (lbs / kg) | 227,248 / 103,078 | |
Tender Water Capacity (gals / ML) | 3960 / 15 | |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 57 / 28.50 | 57 / 28.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 54 / 1372 | 54 / 1372 |
Boiler Pressure (psi / kPa) | 175 / 1210 | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 26" / 483x660 | 19" x 26" / 483x660 |
Tractive Effort (lbs / kg) | 25,855 / 11727.64 | 29,549 / 13403.22 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.33 | 4.67 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 229 - 2" / 51 | 229 - 2" / 51 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 14.42 / 4.40 | |
Firebox Area (sq ft / m2) | 133 / 12.36 | 131 / 12.17 |
Grate Area (sq ft / m2) | 22 / 2.04 | 22 / 2.04 |
Evaporative Heating Surface (sq ft / m2) | 1861 / 172.96 | 1859 / 172.77 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1861 / 172.96 | 1859 / 172.77 |
Evaporative Heating Surface/Cylinder Volume | 218.12 | 217.88 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 3850 | 4400 |
Same as above plus superheater percentage | 3850 | 4400 |
Same as above but substitute firebox area for grate area | 23,275 | 26,200 |
Power L1 | 4663 | 5304 |
Power MT | 298.25 | 339.25 |