Builder: A.Ahlström Oy, Varkauden konepaja, Eastern Finland
Completed: 1929
Measurements: 21,0x5,1x2,1 m
Steam engine: 175 indicated horsepowers, compound engine
Steam boiler: 63 m², 11 kp/cm²
Fuel: Wood (log, length of 1 metre)
Fuel consumption: about one cubic metre of wood per hour
Speed: Top speed ab. 10 knots, cruising speed ab. 7 knots

How the steam engine works (aboard Näsijärvi II, only in Finnish)

Engine commands (aboard Näsijärvi II, only in Finnish)