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South Africa operates three Lillian Ngoyi-class environmental patrol vessels, based on the Damen Stan 4708 design. The vessels are named Lillian Ngoyi, Ruth First and Victoria Mxenge.
The vessels were constructed in South Africa by Farocean Marine. The United States Coast Guard later decided to construct up to 58 Sentinel-class 154 ft (47 m) fast response cutters (FRC), also based on the Damen Stan patrol vessel 4708 design, citing the success of the South African vessels.
Video Lillian Ngoyi-class patrol vessel
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Source of the article : Wikipedia