Tasmanian Government 4-8-2 Locomotives in Australia

Class H (Locobase 8579)

Data from [], [], and [], all accessed 14 July 2007.

These small Mountains (Hills?) were works #5949-5956. They had cast-steel SCOA-P drivers and roller bearings on every axle including the four under the tender, the main (connecting) rod, and the side (coupling) rods. As delivered, the superheater measured 372 sq ft, but the diagram prepared by the Tasmanian's chief mechanical engineer H Townsend showed substantially less area and slightly more firebox area. Locobase adopted Townsend's numbers because they were taken from locomotives in service.

---

Class Q (Locobase 9559)

Data from TGR locomotive diagram hosted by [], last accessed 6 September 2008. See also "The Railways of Tasmania", Locomotive Magazine, Volume XXVIII [28] (14 October 1922), pp. 88-91 and (15 November 1922), pp. 323-326.

As delivered, these "heavy goods" (freight) engines had somewhat small boilers with Belpaire fireboxes. Along the way, most of them were fitted with 2 Nicholson thermic syphons that improved their steaming capability.

This class was supplied in several batches from several Australian builders throughout the country. Perry Engineering of Gawler, South Australia delivered the first 6 in 1922 (along with 4 R-class 4-6-2). The TGR turned to Walkers Engineering across the continent in Queensland for the next 3 in 1929. And Clyde Engineering of New South Wales finished off the class with 6 in the late 1930s and 4 more in 1940. Two of the latter were delivered in 1944 while parts for the last two were sent to the TGR, which assembled them in 1945.

According to the Tasmanian Transport Museum's Q5 exhibit page ([], last accessed 6 September 2008), these locomotives "...the class handled the majority of mainline goods trains around the state." Locobase notices that not even the Vulcan H class had cylinders as large, nor did they have thermic syphons.