LÉ ''Emer'' (P21) of the

Irish Naval Service The Naval Service () is the maritime component of the Defence Forces (Ireland), Defence Forces of Republic of Ireland, Ireland and is one of the three branches of the Irish Defence Forces. Its base is in Haulbowline, County Cork. Though prece ...

, now known as NNS ''Prosperity'' of the

Nigerian Navy The Nigerian Navy (NN) is the Navy, naval branch of the Nigerian Armed Forces, Nigerian armed forces. With more than 70 warships, it is categorised as the fourth strongest navy in Africa (after South Africa, Egypt, Algeria and Morocco). It is co ...

, was built as a

patrol vessel A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and they ...

in Verolme Dockyard, Cork, Ireland in 1977. After evaluating for 3 years, ''Emer'' was ordered by the Irish Naval Service in 1975. Commissioned in January 1978, she was named after

Emer Emer (), in modern Irish or (with variations including , and ) and in Scottish Gaelic , is the name of the daughter of Forgall Monach and the wife of the hero Cú Chulainn in the Ulster Cycle of Irish mythology. Legend ''Tochmarc Emire' ...

, the principal wife of Cúchulainn, a legendary Irish folk hero. She was an improved version of the sole of class and similar to and . She was commissioned on 16 January 1978 and had 35 years of service with the Irish Naval Service. Decommissioned on 20 September 2013, in October 2013 ''Emer'' was sold at auction for €320,000 to a Nigerian businessman. In July 2014 ''Emer'' was impounded by the Nigerian Navy because the new owner had failed to secure the necessary military approval before bringing the ship into Nigerian waters. On 19 February 2015 ''Emer'' was commissioned into the

as a

training ship A training ship is a ship used to train students as sailors. The term is mostly used to describe ships employed by navies to train future officers. Essentially there are two types: those used for training at sea and old hulks used to house class ...

and renamed NNS ''Prosperity''.

References

1977 ships Former naval ships of the Republic of Ireland Naval ships of the Republic of Ireland Deirdre-class offshore patrol vessels Naval ships of Nigeria Ships built in Ireland {{Ireland-maritime-stub