Data from [], [
], and [
], all accessed 14 July 2007.
Data from TGR locomotive diagram hosted by [], last accessed 6 September 2008. See also "The Railways of Tasmania", Locomotive Magazine, Volume XXVIII [28] (14 October 1922), pp. 88-91 and (15 November 1922), pp. 323-326.
Principal Dimensions by Steve Llanso of Sweat House Media | ||
---|---|---|
Class | H | Q |
Locobase ID | 8579 | 9559 |
Railroad | Tasmanian Government | Tasmanian Government |
Country | Australia | Australia |
Whyte | 4-8-2 | 4-8-2 |
Number in Class | 8 | 19 |
Road Numbers | H1-H8 | Q1-Q19 |
Gauge | 3'6" | 3'6" |
Number Built | 8 | 19 |
Builder | Vulcan Foundry | several |
Year | 1951 | 1922 |
Valve Gear | Walschaert | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 13.28 / 4.05 | 12.87 / 3.92 |
Engine Wheelbase (ft / m) | 31.80 / 9.69 | 29.87 / 9.10 |
Ratio of driving wheelbase to overall engine wheelbase | 0.42 | 0.43 |
Overall Wheelbase (engine & tender) (ft / m) | 55.46 / 16.90 | 53.48 / 16.30 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 29,120 / 13,209 | 27,720 / 12,574 |
Weight on Drivers (lbs / kg) | 112,000 / 50,802 | 108,752 / 49,329 |
Engine Weight (lbs / kg) | 152,992 / 69,396 | 145,488 / 65,992 |
Tender Loaded Weight (lbs / kg) | 94,976 / 43,080 | 87,360 / 39,626 |
Total Engine and Tender Weight (lbs / kg) | 247,968 / 112,476 | 232,848 / 105,618 |
Tender Water Capacity (gals / ML) | 4800 / 18.18 | 4200 / 15.91 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 | 6.60 / 6 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 | 45 / 22.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 48 / 1219 | 48 / 1219 |
Boiler Pressure (psi / kPa) | 200 / 13.80 | 160 / 11 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 | 20" x 24" / 508x610 |
Tractive Effort (lbs / kg) | 27,540 / 12491.95 | 27,200 / 12337.73 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 | 4.00 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 109 - 2" / 51 | 189 - 2" / 51 |
Flues (number - dia) (in / mm) | 20 - 5.5" / 140 | 18 - 5.25" / 133 |
Flue/Tube length (ft / m) | 16.52 / 5.04 | 15.75 / 4.80 |
Firebox Area (sq ft / m2) | 176 / 16.36 | 166 / 15.43 |
Grate Area (sq ft / m2) | 34 / 3.16 | 32.50 / 3.02 |
Evaporative Heating Surface (sq ft / m2) | 1624 / 150.93 | 1272 / 118.22 |
Superheating Surface (sq ft / m2) | 298 / 27.70 | 320 / 29.74 |
Combined Heating Surface (sq ft / m2) | 1922 / 178.63 | 1592 / 147.96 |
Evaporative Heating Surface/Cylinder Volume | 229.75 | 145.76 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 6800 | 5200 |
Same as above plus superheater percentage | 7888 | 6240 |
Same as above but substitute firebox area for grate area | 40,832 | 31,872 |
Power L1 | 11,739 | 7307 |
Power MT | 924.29 | 592.51 |