High Quality Content by WIKIPEDIA articles! USS Antrim (FFG-20) was the twelfth ship of the Oliver Hazard Perry class of guided-missile frigates. She was named for Rear Admiral Richard Nott Antrim (1907–1969). Ordered from Todd Pacific, Seattle, WA on 28 February 1977 as part of the FY77 program, Antrim was laid down on 21 June 1978, launched on 27 March 1979, and commissioned on 26 September 1981.