Suomen valtionrautatiet 0-4-2 Locomotives in Finland


Class Details by Steve Llanso of Sweat House Media

Class B1 (Locobase 5607)

Data from Markku Karvonen's personal.inet.fi/koti/markku.karvonen/prk/vanha3.htm (visited 29 March 2003).; and Eljas Polho- Pekka Honkanen, Hoyryveturit Valtionrautateilla (The Steam Locomotives of the Finnish State Railways), Suomen Rautatiehistoriallinen Seura Ry (Finnish Railway History Society) 1967-2017. Publishing information supplied by Teemu Koivumaki in a 24 January 2022 email as part of an indispensable series of emails concerning Finnish locomotives. Works numbers were 846-847 in 1868, added 1334 in 1872, 1511-1513 in 1875. Then a long pause ended with 3208-3209 in 1890.

Here the TE was 9,716 lb from boilers pressed to 142 psi; the early engines had 120-psi boilers allowing a TE of 8,360.

An unusual saddle-tank design with the adhesion wheels leading, most likely to permit faster acceleration.

After long careers, the class went out of service in December 1924 (56), July 1925 (53); July, October, and November 1926 (9-10, 151, respectively); September 1927 (150); and January 1928 (54)


Class B2 (Locobase 5608)

Data from Markku Karvonen's personal.inet.fi/koti/markku.karvonen/prk/vanha3.htm (visited 29 March 2003); and Eljas Polho- Pekka Honkanen, Hoyryveturit Valtionrautateilla (The Steam Locomotives of the Finnish State Railways), Suomen Rautatiehistoriallinen Seura Ry (Finnish Railway History Society) 1967-2017. Publishing information supplied by Teemu Koivumaki in a 24 January 2022 email as part of an indispensable series of emails concerning Finnish locomotives. Works number was 1970 in 1880.

A smaller, one-off saddle-tanker used in constructing the Tampella-Nkolainkaupunki railway. As small as it was, the engine endured until it was put out of service, withdrawn and sold in February 1920. Enso OY used it in the Jaaski area until 1925.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassB1B2
Locobase ID5607 5608
RailroadSuomen valtionrautatiet (VR)Suomen valtionrautatiet (VR)
CountryFinlandFinland
Whyte0-4-2ST0-4-2ST
Number in Class81
Road Numbers9, 10, 53-56, 150-151100
Gauge5'5'
Number Built81
BuilderBeyer, PeacockBeyer, Peacock
Year18681880
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.50 / 1.68
Engine Wheelbase (ft / m)11.75 / 3.58
Ratio of driving wheelbase to overall engine wheelbase 0.47
Overall Wheelbase (engine & tender) (ft / m)13.58 / 4.1411.75 / 3.58
Axle Loading (Maximum Weight per Axle) (lbs / kg)21,605 / 980015,432 / 7000
Weight on Drivers (lbs / kg)43,211 / 19,60030,865 / 14,000
Engine Weight (lbs / kg)58,202 / 26,40045,195 / 20,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)792 / 3317 / 1.20
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.20 / 2 2.20 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)36 / 1826 / 13
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)49.20 / 125045 / 1143
Boiler Pressure (psi / kPa)145 / 1000123.30 / 850
High Pressure Cylinders (dia x stroke) (in / mm)14.02" x 20" / 356x50811.5" x 17.99" / 292x457
Tractive Effort (lbs / kg)9848 / 4466.985541 / 2513.36
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.39 5.57
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)10.23 / 0.95 8.40 / 0.78
Evaporative Heating Surface (sq ft / m2)675 / 62.73434 / 40.33
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)675 / 62.73434 / 40.33
Evaporative Heating Surface/Cylinder Volume188.89200.67
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation14831036
Same as above plus superheater percentage14831036
Same as above but substitute firebox area for grate area
Power L1
Power MT

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