Navio da República Portuguesa
Navio da República Portuguesa, abbreviated as N.R.P. or NRP, is a ship prefix used to identify a commissioned ship of the Portuguese Navy.
During the Portuguese Monarchy era, there was no standard method for referring to the Royal Portuguese Navy's ships. After the establishment of the Portuguese Republic on 5 October 1910, all Portuguese naval ships started to be officially referred to by their name preceded by Navio da República Portuguesa or its abbreviation.
After July 1981, Portuguese Navy's vessels not considered as naval ships came to be officially referred to by the prefix Unidade Auxiliar da Marinha, abbreviated as U.A.M. or UAM.
Sometimes, some Portuguese Navy vessels are referred to by alternative prefixes that indicate their function or type, as N.E. for Navio-Escola or N.H. for Navio Hidrográfico. For example, although the official name of the school ship Sagres is N.R.P. Sagres, she is occasionally referred to as N.E. Sagres.
