 A. C. Thomas in command.One of six river gunboats built for use on the Yangtze Kiang in south central China, "Oahu" departed Shanghai on her shakedown cruise 3 November 1928, proceeding upriver to Chungking, inland, stopping at the open treaty ports en route and returning to Shanghai 2 June 1929.She then operated all along the Yangtze from the river's mouth to Chungking and in the tributaries in protection of American lives and property into the 1930s.