The ships provide sea transportation for personnel and equipment for SAF 's overseas training , as well as a training platform for RSN 's midshipmen . RSS '' Endurance '' became the first RSN ship to circumnavigate the globe when it participated in the 2000 International Naval Review in New York City . The ships are also actively involved in humanitarian and disaster relief operations , notably in East Timor , the Persian Gulf , the tsunami-hit Indonesian province of Aceh and most recently , disappearance of Indonesia AirAsia Flight 8501 . The four ships form the 191 Squadron of the RSN
Indonesia AirAsia Flight 8501
Indonesia AirAsia Flight 8501
Republic of Singapore Navy