HMS POWDERHAM M2720 Built 27.5.60 J.Samuel White
1958 Operational Reserve, Hythe
11.1959 Special Trials
1960 Operational Reseve, Hythe
1961 - 62 Forth Division RNR
3.1963 Special Trials, Portsmouth
1964 Converted to Inshore Survey Craft as WATERWITCH
1982 Liverpool University RN Unit tender
then ?