Toronto, Hamilton, & Buffalo 4-6-2 Locomotives in Canada


Class Details by Steve Llanso of Sweat House Media

Class K-1 (Locobase 1077)

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 65359-65360 in November 1923.

The diagram shows that 27 sq ft (2.51 sq m) of the firebox heating surface was represented by arch tubes. No separate figure for superheating surface is published; Locobase uses the figure for the Canadian National engines described in Locobase 5087, which were built around the same time by the same builder and had very similar dimensions.

Largest, heaviest engines ever built to a TH&B design and was fitted with 14"(356 mm) piston valves. Last hand-fired locomotives allowed to run in the United States. Scrapped in 1955, 1952.


Class Ks (Locobase 1076)

Data from 1924 TH&B locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works number was 53287 in 1913.

Lone Pacific fitted with larger cylinders and boiler than the superheated 4-6-0s. Firebox heating surface includes 28 sq ft (2.6 sq m) of arch tubes. Steam admission through relatively large 14" (356 mm) piston valves.

Scrapped in 1950.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassK-1Ks
Locobase ID1077 1076
RailroadToronto, Hamilton, & BuffaloToronto, Hamilton, & Buffalo
CountryCanadaCanada
Whyte4-6-24-6-2
Number in Class21
Road Numbers15-1611
GaugeStdStd
Number Built21
BuilderMontreal LWMontreal LW
Year19231913
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13 / 3.9613 / 3.96
Engine Wheelbase (ft / m)33.83 / 10.3135.58 / 10.84
Ratio of driving wheelbase to overall engine wheelbase 0.38 0.37
Overall Wheelbase (engine & tender) (ft / m)46.65 / 14.2265.75 / 20.04
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)172,600 / 78,290138,000 / 62,596
Engine Weight (lbs / kg)263,500 / 119,522219,000 / 99,337
Tender Loaded Weight (lbs / kg)154,200 / 69,944175,000 / 79,379
Total Engine and Tender Weight (lbs / kg)417,700 / 189,466394,000 / 178,716
Tender Water Capacity (gals / ML)8000 / 30.309000 / 34.09
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)10 / 914 / 13
Minimum weight of rail (calculated) (lb/yd / kg/m)96 / 4877 / 38.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)69 / 175369 / 1753
Boiler Pressure (psi / kPa)200 / 13.80180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)24" x 28" / 610x71123" x 28" / 584x711
Tractive Effort (lbs / kg)39,736 / 18023.9732,844 / 14897.81
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.34 4.20
Heating Ability
Tubes (number - dia) (in / mm)228 - 2" / 51178 - 2" / 51
Flues (number - dia) (in / mm)32 - 5.375" / 13726 - 5.375" / 137
Flue/Tube length (ft / m)20 / 6.1020 / 6.10
Firebox Area (sq ft / m2)242 / 22.49193 / 17.94
Grate Area (sq ft / m2)56.50 / 5.2549.30 / 4.58
Evaporative Heating Surface (sq ft / m2)3517 / 326.862768 / 257.25
Superheating Surface (sq ft / m2)757590 / 54.83
Combined Heating Surface (sq ft / m2)4274 / 326.863358 / 312.08
Evaporative Heating Surface/Cylinder Volume239.90205.65
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation11,3008874
Same as above plus superheater percentage13,33410,471
Same as above but substitute firebox area for grate area57,11240,993
Power L118,10513,907
Power MT693.77666.51

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