Bergslagernas Jarnvagar/Statens Jarnvagar 4-6-0 Locomotives in Sweden

Class H3/A6 (Locobase 20212)

Data from Litt-A6, one of a series of SJ locomotive diagrams archived by Anders Lundbing on [], last accessed 10 June 2017 (Snabcon AB advertised its tools for mounting RJ45 connectors on bundled cables.)

Works numbers for the first four were Nohab's 953-956 in 1910, 988-989 in 1912, Motala 492-493 in 1913, and Falun 224, 226 in 1916.

Piston valves for this first set of ten in a widely distributed design measured 200 mm (7.9") in diameter.

(NB: Locobase's specifications show the evaporative heating surface area using the tubes' outer diameter (i.e., the water side). The SJ's calculation used the narrower, fire-side diameter of 44.5 mm, which produced a total EHS of 116.03 sq m (1,365 sq ft).)

Class H3s/A8 (Locobase 4836)

Data originally from Dirty Nico's Steamdepot []; supplemented and amended by Litt-A8-BJ, one of a series of SJ locomotive diagrams archived by Anders Lundbing on [], last accessed 10 June 2017

Originally built for a private Swedish railroad, these were the only three-cylinder passenger locomotives to operate in Sweden. An H3s set the Swedish steam engine speed record at 125.5 kph (78 mph).

This class also served as the design basis for fifteen Dutch railways locomotives purchased in 1943 for postwar use; see Locobase 4837.

The four Swedish engines were taken into the SJ as the A8 class (1806-1809) in 1948. Steady progress toward electrification meant that when the quartet was taken into the national railway, their focus on express passenger work and high axle loading rendered the class unsuitable for other types of service. They were soon retired.