Irish Naval Service as a permanent component of the Irish Defence Forces. The Naval Service purchased three s from the United Kingdom in 1946 and 1947. The tradition of naming Irish Naval Ships after figures in Celtic Mythology began, and the ships were named , and . 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. In 1970, "Cliona" and "Macha" were withdrawn from service and scrapped, leaving "Maev" as the sole ship in
HMY Britannia (Royal Cutter Yacht) cost was £8,300 and like "Valkyrie II", "Britannia" was built at the D&W Henderson shipyard in Patrick on the River Clyde. With two such highly important commissions underway in the same yard, Watson delegated his protégé James Rennie Barnett to oversee both yachts. "Britannia" was launched on 20 April 1893, a week ahead of "Valkyrie II" and joined a fleet of first class cutters that was growing fast as others followed the royal lead. In a highly competitive fleet, "Britannia" soon set about achieving the race results which would eventually establish her as the most successful racing yacht of all