History of the Irish Naval Service started, and the ships were named "Cliona", "Maev" and "Macha". These three ships were to become a key part of the Naval Service in the 1950s and 1960s. The first formal training of Irish Naval Cadets took place at the Britannia Royal Naval College, Dartmouth, UK in 1947. Between 1968 and 1970, Cliona, Maev and Macha were withdrawn from service. These were replaced by three minesweepers commissioned in 1971: Grainne, Banba and Fola. In 1971 the Naval Service commissioned Verolme Cork Dockyard to build an offshore patrol ship. Named L.É Deirdre, it was the first naval vessel purpose-built in Ireland
Royal Naval College, Osborne Rosslyn E. Wemyss was appointed Captain of HMS "Racer" and Commandant of the Royal Naval College, Osborne, under the New Scheme, on 25 November 1902, and with effect from 12 March 1903 Commander William G. E. Ruck-Keene was appointed as Executive Officer of HMS "Racer". Before admission as naval cadets at about the age of thirteen, boys had to pass an entrance examination, in which they were tested in English, history and geography (with special reference to the British Empire), arithmetic, algebra, geometry (practical and theoretical); French or German, with written and oral examinations; and Latin, with set translations and