The Bandon Tanks excelled due to their elegant design, high power output and compact wheel arrangement, which suited the track of the CB&SCR network.

[citation needed] The wheelbase was also short-coupled (close to each other) in order to manage the tight curves on the CB&SCR lines.

4 in April 1915 but World War I restrictions prevented Beyer, Peacock from completing and delivering it until October 1919.

[citation needed] Despite the bunker size being limited by the 4–6–0T layout, Bandon Tanks had no difficulty covering distances on the CB&SCR network,[2] the greatest of which was 62 miles (100 km) between Cork Albert Quay and Baltimore.

In CB&SCR service the class was painted olive green with yellow lining.

[8] Throughout the period of Great Southern Railways operation (1925-45), along with all locomotives on the West Cork system (and further afield), they were all-over unlined dark grey, which was carried over into CIE days.