Data from the 1924 TH & B Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 47665, 48836-48837 in 1910, 50741-50742 and 51512-51513 in 1912.
Firebox heating surface area included 26.7 sq ft (2.5 sq m) in four arch tubes. Piston valve diameter was 14" (356 mm).
101 was scrapped in 1945 and 104-106 were scrapped in 1950. 102 was sold to Stelco in Hamilton. 103 was preserved as a display at Gage Park and later moved to Rockton, Ontario's Westfield Heritage Village for restoration. And 107 traveled west to Sasketechewan's Western Mining.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Gs |
| Locobase ID | 14707 |
| Railroad | Toronto, Hamilton & Buffalo |
| Country | Canada |
| Whyte | 2-8-0 |
| Number in Class | 7 |
| Road Numbers | 50-56, 101-107 |
| Gauge | Std |
| Number Built | 7 |
| Builder | Montreal LW |
| Year | 1910 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 17 / 5.18 |
| Engine Wheelbase (ft / m) | 25.75 / 7.85 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.66 |
| Overall Wheelbase (engine & tender) (ft / m) | 56.92 / 17.35 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 178,800 / 81,102 |
| Engine Weight (lbs / kg) | 204,500 / 92,760 |
| Tender Loaded Weight (lbs / kg) | 136,000 / 61,689 |
| Total Engine and Tender Weight (lbs / kg) | 340,500 / 154,449 |
| Tender Water Capacity (gals / ML) | 7000 / 26.52 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 10 / 9 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 75 / 37.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 55 / 1397 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 23" x 28" / 584x711 |
| Tractive Effort (lbs / kg) | 41,204 / 18689.84 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.34 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 202 - 2" / 51 |
| Flues (number - dia) (in / mm) | 28 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 15 / 4.57 |
| Firebox Area (sq ft / m2) | 187.80 / 17.45 |
| Grate Area (sq ft / m2) | 50.80 / 4.72 |
| Evaporative Heating Surface (sq ft / m2) | 2365 / 219.71 |
| Superheating Surface (sq ft / m2) | 585 / 54.35 |
| Combined Heating Surface (sq ft / m2) | 2950 / 274.06 |
| Evaporative Heating Surface/Cylinder Volume | 175.71 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 9144 |
| Same as above plus superheater percentage | 10,973 |
| Same as above but substitute firebox area for grate area | 40,565 |
| Power L1 | 10,504 |
| Power MT | 518.06 |
