NGA Pilot Charts
PILOT CHARTS, which are oceanic charts overlaid with the accumulated empirical weather data (wind and current), and are used for passage planning, are available online (free). ATLAS of PILOT CHARTS from the The National Geospatial-Intelligence Agency (NGA):http://pollux.nss.nima.mil/pubs/pubs_j_apc_list.htmlNorth Atlantic Ocean: http://pollux.nss.nima.mil/pubs/pubs_j_apc_sections.html?rid=10499South Atlantic Ocean:http://pollux.nss.nima.mil/pubs/pubs_j_apc_sections.html?rid=285North Pacific Ocean:http://pollux.nss.nima.mil/pubs/pubs_j_apc_sections.html?rid=288South Pacific Ocean:http://pollux.nss.nima.mil/pubs/pubs_j_apc_sections.html?rid=1146