GS&WR Class 21

The Great Southern and Western Railway (GS&WR) Class 21 (Or perhaps more simply engine numbers 21 to 40) consisted of half of the initial order of 40 passenger locomotives ordered for the GS&WR and which entered service between approximately 1845 and 1847. A number were later rebuilt to 2-4-0 locomotives for goods work.

Engine No. 36, built in 1847, covered 300000 mi and is preserved at Cork Kent. There were suggestions it was able to achieve 60 mph downhill on Ballybrophy bank but climbing out of Kingsbridge towards Inchicore on a wet day might require the fireman to walk alongside shovelling sand under the wheels to prevent slipping.