| Builders Dubs & Co North British Locomotive Co |
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| coupled wheel diameter 3'6.5" | ||||
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| coal capacity 5.5 tons | ||||
| water capacity 2,200 gallons | ||||
| number in service 57 (F & Fs) |
The F class was a heavy freight engine introduced into service in August, 1902 to replace the K class engines between Midland Junction & Northam. Fifty seven locomotives of the class were in service by September, 1913, including Fs.460, then numbered F.407, which began operating on the WAGR on 19 July, 1913.
Superheating was introduced into Western Australia in 1912 with an F class locomotive & F.407 received this equipment in 1937, becoming an Fs on 10 December that year. On 21 December, 1949 it was renumbered Fs.460, & the class was displaced from main line working by the S & V classes after the Second World War. Fs.460 was stored between August, 1962 & July, 1963 when it was returned to service, & it finished its days as a shunting engine at Collie from about 1970. It was retired from service & stored at Collie before being towed to Perth & placed in the Rail Transport Museum on 6 June, 1972.