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From WikipediaSensors and

HMS Zulu was a Tribal-class frigate of the Royal Navy in service from 1964 to 1984. She was the third ship bearing the name of HMS Zulu, having been named after an ethnic group located primarily in KwaZulu-Natal Province, South Africa. Zulu was built by Alexander Stephen and Sons, of Govan, at a cost of £5,100,000.[2] She was launched on 3 July 1962 and commissioned on 17 April 1964.[3] Zulu was the only Tribal built with Seacat missiles; her six sister frigates were built with two 40 mm Bofors guns and fitted with the Seacat system during later refits.

She was sold to the Indonesian Navy in 1984 and renamed Martha Khristina Tiyahahu.