“1 boat is obvious astern of An additional when her hull and tools in ordinary posture are driving a line abeam from the aftermost stage of the opposite boat’s hull and tools in typical place. Another boat is obvious in advance. They overlap when neither is evident astern. [snip] Should https://www.whofish.org/Default.aspx?tabid=45&modid=379&action=detail&itemid=310505&rCode=18