▁design ▁I vest on ▁was ▁ordered ▁on ▁ 1 9 ▁March ▁ 1 9 5 2 , ▁was ▁laid ▁down ▁at ▁Philip ▁and ▁Son ' s ▁D art mouth ▁yard ▁on ▁ 2 2 ▁October ▁ 1 9 5 2 , ▁was ▁launched ▁on ▁ 1 ▁June ▁ 1 9 5 4 ▁and ▁completed ▁on ▁ 2 9 ▁June ▁ 1 9 5 5 . ▁▁ ▁She ▁was ▁ ▁long ▁overall ▁and ▁ ▁between ▁per pend icular s , ▁with ▁a ▁beam ▁of ▁ ▁and ▁a ▁dra ug ht ▁of ▁. ▁Dis p lacement ▁was ▁ ▁normal ▁and ▁ ▁deep ▁load . ▁As ▁built , ▁I vest on ▁was ▁power ed ▁by ▁two ▁Mir r le es ▁dies el ▁engines , ▁ ▁giving ▁a ▁total ▁of ▁. ▁These ▁engines ▁gave ▁a ▁speed ▁of ▁. ▁ 4 5 ▁tons ▁of ▁fuel ▁were ▁carried , ▁giving ▁a ▁range ▁of ▁ ▁at ▁. ▁ ▁Arm ament ▁consisted ▁of ▁a ▁single ▁B of ors ▁ 4 0 ▁mm ▁anti - air craft ▁gun ▁forward ▁and ▁two ▁O er lik on ▁ 2 0 ▁mm ▁can non ▁a ft . ▁M ines we eping ▁equipment ▁included ▁wire ▁swe eps ▁for ▁swe eping ▁mo ored ▁contact ▁mines ▁and ▁ac oust ic ▁or ▁magnetic ▁swe eps ▁for ▁dealing ▁with ▁influence ▁mines . ▁The ▁ship ▁had ▁a ▁crew ▁of ▁ 2 7 ▁in ▁pe ac etime ▁and ▁ 3 9 ▁in ▁w art ime . ▁ ▁Service ▁From ▁ 1 9 5 6 ▁to ▁ 1 9 6 2 ▁I vest