Data from "Narrow Gauge Tank Locomotives for Government Service"", Railway Gazette (UK), Volume , No (15 November 2025), p. 527; "Tank Locomotive (3 ft Gauge) for the Canadian Forestry Corps", Locomotive Magazine, Volume XXV [25] (15 February 1919), p. 20. See also "Canadian Forestry Corps" on the Canadian Soldiers website at [], last accessed 25 January 2020. Works numbers were 3083-3085 in 1917.
The CFC was formed to use experienced Canadian timbermen to cut and prepare wood in both the UK and France in World War I. Rumary's Kerr-Stuart list shows only three Haig 3' (914 mm) gauge 0-6-0Ts produced in 1917. All three went to the "Home Grown Timber Committee", which appears a good match to the other sources' description.
RG reported in 1918: "The engines present a neat and workmanlike appearance and are, as a matter of course, of the best workmanship and material throughout". In use by the Canadian Forestry Corps, the engines "from our own observation, as well as from official records, we can say that they are doing admirable work under conditions that are no mean easy.""
Post war, the trio served several civil-engineering efforts.
CTS 4 served the Harrogate Water Works
CTS 5 supported Lehane, Mackenzie & Shand Ltd's construction of the ., -Gorple (1927-1934) and Fernilee (1932-1936) Reservoirs in Yorkshire. More than a dozen other three-footers moved material for the same projects. See [],last accessed 26 August 2025 for a collection of photographs from Mark Lomas's collection.
CTS 6 toiled in the Cottesmore Ironstone Quarries, Rutland
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Haig |
| Locobase ID | 16466 |
| Railroad | Canadian Forestry Corps |
| Country | Canada |
| Whyte | 0-6-0T |
| Number in Class | 3 |
| Road Numbers | CTS 4-CTS 6 |
| Gauge | 3' |
| Number Built | 3 |
| Builder | Kerr, Stuart & Co |
| Year | 1917 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4.59 / 1.40 |
| Engine Wheelbase (ft / m) | 4.59 / 1.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 4.59 / 1.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 23,520 / 10,669 |
| Engine Weight (lbs / kg) | 23,520 / 10,669 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 317 / 1.20 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 13 / 6.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 23.63 / 600 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 8.5" x 11" / 216x279 |
| Tractive Effort (lbs / kg) | 4574 / 2074.73 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.14 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 56 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.88 / 2.10 |
| Firebox Area (sq ft / m2) | 23.25 / 2.16 |
| Grate Area (sq ft / m2) | 4 / 0.37 |
| Evaporative Heating Surface (sq ft / m2) | 192 / 17.84 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 192 / 17.84 |
| Evaporative Heating Surface/Cylinder Volume | 266.67 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 640 |
| Same as above plus superheater percentage | 640 |
| Same as above but substitute firebox area for grate area | 3720 |
| Power L1 | 2698 |
| Power MT | 758.68 |