<prompt> Pedzisa mutsara unotevera: De Neumann akatanga kukudziridza mifungo pamusoro pezvingaitika zvechiteshi-chinodzora gadziriro apo akanga ari kaputeni weHMRC Vigilant. Iyi mifungo yakatevera kubva pakufunga nezvezviitiko zvakadai sekuputika netsaona kwechikepe chepasi pegungwa neHMS Divina muna 1950, chikepe cheNorway Baalbek kurovera neNore Army Fort muna 1953, uye njodzi  <response>: Mafashamo eNorth Sea akaunza mafashamo eCanvey Island, Foulness neEast Coast muna 1953. Muzviitiko izvi nezvimwewo, kununura uye kuunganidza ruzivo kwakakanganiswa zvakanyanya nekushayikwa kwekutungamira uye kutonga, izvo zvakakonzera kushayikwa kwekuziva mamiriro ezvinhu. 