LÉ Emer (P21)

LÉ Emer (P21) was a ship in the Irish Naval Service. The ship was named after Emer, the principal wife of Cúchulainn and the daughter of a chieftain from Rush, County Dublin.

After evaluating LÉ Deirdre (P20) for 3 years, Emer was ordered in 1975. Experience with Deirdre showed a need for more engine power, better crew accommodation and improved silencing. The vessel was modernised throughout her service life in order to take advantage of new technologies and to make life for the crew more comfortable; additions included air conditioning.

She was an improved version of the sole of Class LÉ Deirdre (P20) and is similar to the improved versions LÉ Aoife (P22) and LÉ Aisling (P23). She was commissioned on 16 January 1978 and decommissioned on 20 September 2013.

On 23 October 2013 Emer was sold at auction for €320,000 to a Nigerian Businessman