-Snekoski - Suolahti 0-6-0 Locomotives in Finland


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 5989)

See also "Renovation of the H.K. Porter locomotive" dated 29 October 2009 []. Works number was 2313 in March 1901.

This has been a difficult entry to piece together. The one site with the most to say about this little Porter export [] --left out the driver diameter and the boiler pressure. A 1993 letter from Jussi Tepponen (tepponen@simeoni.it.lut.fi) to

Newsgroups: rec.railroad (Date: 1993-05-08 14:57:04 PST) gave the current working pressure as 11 bar, but the original working pressure of 12 bar.

Both sites noted that #1's boiler was replaced by one built by Tampereen Pellava- ja Rautateollisuus (Tampella) in Tampere, Finland in 1932 and the copper firebox supplanted by a steel one in the 1940s.

According to the site, the 1 was called the Big Ram (Iso Passi) and served the ASR for 40 years.

At that point, the little narrow-gauge railway was replaced by a 5'-gauge state railway line. #1 then went to the -Snekoski Paper Mills where it stayed in service until 1964.

After storage and various movements to avoid scrapping, renovation began in 1974. The Joikonen Museum website gives the full details of a project that ended with a reborn locomotive 30 years later.


Class 1/2 (Locobase 20978)

(Thanks to Teemu Koivumaki for his 9 January 2022 email reporting the Works number was 1930 in February 1899.

Known to the engine drivers of the ASR as Pikku-Passi (Little Ram). Delivered as the first engine on the ASR. Acquisition of the Iso-Passi (Locobase 5989) led to the railway renumbering the 1 with 2.

Principal Dimensions by Steve Llanso of Sweat House Media

Class11/2
Locobase ID5989 20978
Railroad-Snekoski - Suolahti (ASR)-Snekoski - Suolahti (ASR)
CountryFinlandFinland
Whyte0-6-0T0-6-0T
Number in Class11
Road Numbers11/2
Gauge75 cm75 cm
Number Built11
BuilderPorterPorter
Year18991899
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.99 / 1.52
Engine Wheelbase (ft / m)19 / 5.79
Ratio of driving wheelbase to overall engine wheelbase 0.26
Overall Wheelbase (engine & tender) (ft / m)19 / 5.79
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)30,203 / 13,70018,739 / 8500
Engine Weight (lbs / kg)30,203 / 13,70018,739 / 8500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)30,203 / 13,70018,739 / 8500
Tender Water Capacity (gals / ML)1001 / 3.791001 / 3.79
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.10 / 1 1.10 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)17 / 8.5010 / 5
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)29.50 / 75029.50 / 750
Boiler Pressure (psi / kPa)171.10 / 11.80142.10 / 9.80
High Pressure Cylinders (dia x stroke) (in / mm)9.02" x 14.02" / 229x3567.05" x 12.01" / 179x305
Tractive Effort (lbs / kg)5624 / 2551.012444 / 1108.58
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.37 7.67
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) 5.17 / 0.48
Evaporative Heating Surface (sq ft / m2)218 / 20.25105 / 9.72
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)218 / 20.25105 / 9.72
Evaporative Heating Surface/Cylinder Volume210.24193.50
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation885
Same as above plus superheater percentage885
Same as above but substitute firebox area for grate area
Power L1
Power MT

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