The purpose of this locomotive was to carry out heavy shunting duties at Barry Docks. They were, in effect, a saddle tank version of the “A” class, a locomotive which had carried out shunting duties at the docks up to this point. 28 engines of the “F” class were manufactured, making it the second largest class of locomotive used on the Barry Railway, outnumbered only by the “B1” class. They were fitted with a reversing lever, far quicker for changing direction during shunting duties than the customary screw type reverser. They were all shedded at Barry and occasionally, in addition to their main shunting duties, they worked goods and coal traffic on the main line.
The locomotives passed to the Great Western Railway in 1922 but were withdrawn between 1926 and 1936. However so useful were the engines, that many of them were sold on, details of which are listed below. None survived into British Railways ownership and none have been preserved.
Barrie, D. S. M. (1983). The Barry Railway (reprint with addenda and amendments). Oakwood Press. p. 198. ISBN0853612366.
Davies, F. K.; Firth, J. M.; Lucking, J. H.; Thomas, R. E.; Allcock, N. J.; Sterndale, A. C.; Barrie, D. S. M.; Reed, P. J. T.; Mountford, E. R. (April 1966). White, D. E., ed. The Locomotives of the Great Western Railway, part ten: Absorbed Engines, 1922–1947. RCTS. pp. K39–K42. ISBN0-901115-20-7.
Miller, Brian J. (1984). Rails to Prosperity – The Barry & After 1884–1984. Regional Publications (Bristol) Ltd. pp. 14–15. ISBN0906570174.
Mountford, Eric R. (1987). The Barry Railway – Diagrams and Photographs of Locomotives, Coaches and Wagons. Headington: Oakwood Press. p. 14. ISBN0853613559.
Russell, J. H. (1978). Great Western Absorbed Engines. Oxford Publishing Company. pp. 36–37. ISBN0902888749.