É Niamh (P52) is a Róisín-class offshore patrol vessel in the Irish Naval Service. It is the youngest ship in service in the Irish fleet, and is named after Niamh, queen of Tír na nÓg, a character from Irish mythology... The ship has an all-steel hull based on the Mauritian Vigilant patrol vessel launched in 1995, but without the helicopter deck and hangar facilities. The high level of automation incorporated into the ship's systems allows the ship to be operated with just 44 crew including six officers. The crew is provided with comfortable accommodation. The vessel is designed for winter North Atlantic operations...Niamh was involved in the rescue of the Canadian Navy submarine Chicoutimi off the northwestern coast of Ireland on October 5, 2004. (Source Wikipedia)