Admiralty Research EstablishmentThe Admiralty Research Establishment was formed on 1 April 1984 from various Admiralty establishments. It became part of the Defence Research Agency on 1 April 1991.Constituent parts on formation Admiralty Surface Weapons Establishment, Portsdown, Portsmouth Admiralty Marine Technology Establishment – formed from amalgamation of other research departments in 1977 Admiralty Underwater Weapons Establishment, Portland, Dorset.