Pennant number
"Achilles" was one of two Batch 3, "Broad-Beamed" "Leander"-class frigates ordered from Yarrow Shipbuilders in early 1967, the other being and . She was laid down on 1 December 1967, launched on 21 November 1968 and completed on 9 July 1970, commissioning on 11 July with the Pennant number "F12".