Six years later the naval strength had virtually doubled and another five ships (he destroyers SAS SIMON VAN DER STEL and SAS JAN VAN RIEBEECK, the survey ship, SAS PROTEA, as well as the ocean minesweepers, SAS PIETERMARITZBURG and SAS BLOEMFONTEIN) had been added to the fleet.
Kwiminyaka emithandathu emva koku amandla omkhosi wamanzi laphindaphindeka kabini (abatshabalalisi be-SAS SIMON VAN DER STEL kunye ne-SAS JAN VAN RIEBEECK, inqanawa yokuhlola, i-PROTEA i-SAS, ngokunjalo zezikhukulisi zibhombho, i-SAS PIETERMARITZBURG kunye ne-SAS BLOEMFONTEIN) kwaye kongezwa neenqananwa ezintandathu.