Aircraft litter seafloor off S. O'ahu Tenbruggencate Jan Staff Advertiser Final Post-WWI biplanes, flying boats among last week's finds BY JAN TENBRUGGENCATE, Advertiser Science Writer An undersea aircraft museum lies on the ocean floor off South O'ahu, and it includes representatives of virtually the entire era of the flying boats - from early post-World War I biplanes to World War II PBY Catalinas and a postwar behemoth that sank in 1950, the Martin Marshall Mars. The National Oceanic and Atmospheric Administration yesterday announced a series of discoveries made last week and said agencies are mapping the seafloor to document the...