A "Royal Yacht" is a specially designed ship used by a monarch or royal family for official and ceremonial purposes. These yachts often serve as a symbol of national pride and are equipped with luxurious amenities to accommodate the royal family and their guests during voyages. Historically, royal yachts have played significant roles in state functions, diplomatic missions, and public appearances. Notable examples include the HMY Britannia, which served the British royal family from 1954 until 1997, and the Royal Yacht Victoria and Albert, used by the British monarchy in the 19th century.