Under the Whyte notation for the classification of steam locomotives, 4-8-0 represents the wheel arrangement of four leading wheels on two axles, usually in a leading truck or bogie, eight powered and coupled driving wheels on four axles and no trailing wheels. In North America and in some other countries the type was usually known as the Twelve-wheeler.
Under the Whyte notation for the classification of steam locomotives, 0-6-4 represents the wheel arrangement of no leading wheels, six powered and coupled driving wheels on three axles, and four trailing wheels on two axles.
The South African Railways Class H2 4-8-2T of 1909 was a steam locomotive from the pre-Union era in the Colony of Natal.
The South African Railways Class GMA 4-8-2+2-8-4 of 1954 is an articulated steam locomotive.
The South Australian Railways W and Wx class was a class of 2-6-0 steam locomotives operated by the South Australian Railways. Some were used by the Commonwealth Railways in the Northern Territory and by contractors.
The Central South African Railways Class C 2-8-4T of 1900 was a South African steam locomotive from the pre-Union era in Transvaal.
The South Australian Railways P class was a class of 2-4-0T steam locomotives operated by the South Australian Railways.
The South Australian Railways C Class locomotives were built by the Robert Stephenson and Company for the South Australian Railways in 1856. The first locomotive was in service by November 1856, with the second engine in service by January 1857. They were both withdrawn after long service lives, with No. 5 being withdrawn after 50 years working on the SAR. No. 6 lasted well into Commissioner Webbs era, finally being withdrawn in 1926 at almost 70 years old.
The South Australian Railways G Class locomotives first appeared on the South Australian Railways in 1869 after being purchased from Beyer, Peacock and Company. More locomotives were purchased and in service by 1880, and again in 1886. The G class was extinct by 1923.
The South Australian Railways Ga Class locomotive was built in 1874 by Robert Stephenson and Company for the Adelaide Glenelg & Suburban Railway Company and entered service as No. 3. In November 1881, this locomotive was sold to the Glenelg Railway Company and became their No. 3. On the 16th of December 1899 this locomotive entered service on the South Australian Railways as Ga class No. 157, after the SAR purchased the Glenelg Railway Company. Ga class No. 157 was rebuilt at Islington Railway Workshops in November 1902 and condemned in May 1915, finally being scrapped in 1922.
The South Australian Railways Gc Class locomotive was built by Robert Stephenson and Company and entered service on the Adelaide Glenelg & Suburban Railway in 1879. In November 1881, the locomotive was sold to the Glenelg Railway Company and became their No. 6. It entered service on the South Australian Railways on 16 December 1899 following the purchase of the Glenelg Railway Company. The SAR classed this locomotive as Gc and numbered it 160. No. 160 was then scrapped on the 26th of July 1905.
The South Australian Railways Gd Class locomotives were built by Beyer, Peacock and Company for service on the Holdfast Bay railway line in 1880. They were numbered 4 and 5. In November 1881, both engines were sold to the Glenelg Railway Company and became their number 9 and 10. These locomotives entered service on the South Australian Railways in December 1899, following their purchase of the Glenelg Railway Company and thus classed Gd No. 163 and 164. Nos. 163 and 164 were both condemned as of 6 February 1925 and ultimately scrapped.
The South Australian Railways Ge Class locomotives were built by Beyer, Peacock and Company for the Glenelg Railway Company in 1897, entering service as numbers 11 and 12. They entered service on the South Australian Railways (SAR) as Ge Class Nos. 165 and 166 on 16 December 1899 following the purchase of the Glenelg Railway Company. No. 166 was condemned on the 8th of April 1929, followed by No. 165 on 4 June 1935. They were both eventually scrapped.
The South Australian Railways H Class locomotives were built by Robert Stephenson and Company in 1870 for the South Australian Railways. The first of three numbered 25, 26 and 27 were all in service by June 1871. After being a well received class, two more locomotives were ordered and were in service by October 1872. Nos. 30 and 31 arrived in August 1874. The final two locomotives ordered for the SAR arrived in August 1877 and were numbered 2 and 3. These locomotives worked on the SAR system for many years, with only one member of the class being withdrawn in 1888. The rest of the class were rebuilt over the years and lasted well into the next century with, the final locomotive being withdrawn by 1930.
The first South Australian Railways I class locomotive was built by Neilson and Company, Scotland for the Canterbury Provincial Railways, New Zealand in 1873 and numbered 9. In May 1878, the South Australian Railways (SAR) purchased it. The ship that transported it to South Australia was wrecked, but the locomotive was salvaged and entered service on the SAR in April 1879 as number 38. In 1880 or 1881, it was renumbered 48. It was allocated to "I" class – which was ultimately to be known as the "first I class" – in 1887 or 1888. In October 1905, the SAR withdrew it from service, then sold it in May 1906 to the South Australian Harbours Board for use in the construction of the Outer Harbour breakwater. It was scrapped in August 1909.
Eighteen South Australian Railways K class (broad-gauge) locomotives were built by Beyer, Peacock and Company for the South Australian Railways (SAR) between 1878 and 1884. Despite having a fundamental design flaw that affected their original role as light-line passenger locomotives, they eventually performed shunting duties exclusively. They operated for six decades.
Four South Australian Railways L class broad-gauge locomotives with a 4-4-0 wheel arrangement were built by Beyer, Peacock and Company in 1879 and entered service in March–April 1880. They were condemned in 1928 and 1931, and were subsequently scrapped.
The South Australian Railways O Class (1st) locomotives were built by Baldwin Locomotive Works for the South Australian Railways (SAR). They entered service in 1881 on the SAR system and were both withdrawn and scrapped by 1904.
The South Australian Railways O Class (2nd) locomotive was a 4-4-0WT built by Robert Stephenson and Company in 1868 for the Launceston and Western Railway Company. It entered service with the South Australian Railways in 1912 and was cut up in 1930.
The South Australian Railways Q Class were steam locomotives constructed between 1885 and 1892 by Dübs and Company and James Martin & Co for the South Australian Railways (SAR).
