 Previous weapons had been of the breech-loading (BL) type.The 4-in guns were shipped one on the forecastle and one at the stern, as in the "Acheron" class, while the third was variously sited on the centreline between the two torpedo tubes or abaft both.All ships had three funnels, the foremost being tall and narrow, the second short and wide and the third level with the second but narrower.