2-4-2 Steam Locomotives in Finland

Brahestad


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 12334)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 22, p. 72. Works numbers were 16634-16635 in April 1899.

The Brahestad operated on the northeastern coast of the Gulf of Bothnia.


Class F2 (Locobase 5617)

Data from Markku Karvonen's personal.inet.fi/koti/markku.karvonen/prk/vanha3.htm (visited 29 March 2003). Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 22, p. 74. Works number was 16635

The animator's railroad website -- [] (2 April 2003) -- says that this little tank was privately operated for most of its working life. Indeed, when the VR gained title to this engine, it took it out of service.

The photo shows a balanced profile with the steam dome sitting over the space between the two driven axles and sand domes ahead and behind. The snowplow pilot and vestibule cab are Finnish standard, while the stack resembles a martini glass.

Principal Dimensions by Steve Llanso of Middle Run Media
Class1F2
Locobase ID12334 5617
RailroadBrahestadBrahestad
CountryFinlandFinland
Whyte2-4-2T2-4-2T
Number in Class21
Road Numbers1-265
Gauge5'5'
Number Built21
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year18991899
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)5 / 1.525 / 1.52
Engine Wheelbase (ft / m)20.96 / 6.3920.96 / 6.39
Ratio of driving wheelbase to overall engine wheelbase 0.24 0.24
Overall Wheelbase (engine & tender) (ft / m)20.96 / 6.3920.96 / 6.39
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)32,000 / 14,51532,000 / 14,515
Engine Weight (lbs / kg)55,000 / 24,94855,116 / 25,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)550 / 2.08550 / 2.08
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)27 / 13.5027 / 13.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)49 / 124548.80 / 1240
Boiler Pressure (psi / kPa)150 / 1030150 / 1030
High Pressure Cylinders (dia x stroke) (in / mm)12" x 20" / 305x50812" x 20" / 305x508
Tractive Effort (lbs / kg)7494 / 3399.237525 / 3413.29
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.27 4.25
Heating Ability
Tubes (number - dia) (in / mm)120 - 1.77" / 45120 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.25 / 2.82 9.25 / 2.82
Firebox Area (sq ft / m2)54.50 / 5.0754.50 / 5.07
Grate Area (sq ft / m2) 9.80 / 0.91 9.25 / 0.86
Evaporative Heating Surface (sq ft / m2)575 / 53.44575 / 53.44
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)575 / 53.44575 / 53.44
Evaporative Heating Surface/Cylinder Volume219.63219.63
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation14701388
Same as above plus superheater percentage14701388
Same as above but substitute firebox area for grate area81758175
Power L139663949
Power MT546.47544.13

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