more at: http://shops.quickfound.net/marine_and_aviation.html
"ON ANY DAY, U.S. NAVY SHIPS CAN BE FOUND VIRTUALLY ANYWHERE ON THE WORLD'S OCEANS AND SEAS. SAFE NAVIGATION CAN ONLY BE ASSURED IF CREW MEMBERS UNDERSTAND THE CORRECT APPLICATION OF THE VARIOUS NAVIGATIONAL CHARTS IN USE ABOARD NAVAL SHIPS. PROGRAM EXPLAINS THREE TYPES OF CHARTS -- MERCATOR, GNOMONIC, AND THE LAMBERT CONFRONTATIONAL. A VITAL STEP IN THE SAFE NAVIGATION OF ANY VESSEL IS THE PROPER USE OF CHARTS. MASTERY OF THESE TECHNIQUES IS OF CRITICAL IMPORTANCE TO EVERY SAILOR IN THE FLEET."
also see: Navigation by Lighthouses: "Night Piloting" 1943 US Navy Chesapeake Bay
also see: "Star Identification" 1942 US Navy Basic Astronomy for Navigation http://www.youtube.com/watch?v=QZ3IJRgr9v4
Reupload of a previously uploaded film with improved video & sound.
Public domain film from the US National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
...Free nautical charts
An ocean mapping site with free charts, and a social network for sea lovers, BlooSee is a worldwide ocean mapping site, a mobile app, and a social network for sea lovers, offering free NOAA/United States, New Zealand/Pacific Ocean and Brazil charts. BlooSee leverages the power of the community to complement official nautical chart data with content generated by sailors, surfers, divers, kayakers, fisherman, NGO's, merchants, and other ocean communities. BlooSee's charts and data are layered over the satellite imagery of Google Maps/Google Earth.
Marine GeoGarage is the first nautical chart web portal in the Cloud. The website allows to freely view seamless georeferenced nautical raster chart layers issued from different Hydrographic Services (NOAA US, Linz NZ , DNH Brazil) upon Google Maps imagery.
Additional free features are available for the user (voyage planning, waypoint and route monitoring with transfer to GPS, bearing and distance calculations).
OpenSeaMap.org (OSeaM) is a free nautical chart. It's a worldwide Wiki-project and part of OpenStreetMap. Everybody can contribute his nautical knowledges about estuary, harbours and Marina, as geografic chart informations and as textdata in a linked Wiki-port pilot book. OpenSeaMap covers worldwide all seas and the inland waterways. The chart shows lights, buoys, harbour informations and a lot of other nautical geo-data. The chart displays also weather informations like wind, air pressure, wave hight on a detailed worldwide weather chart including a weather forecast for three days.
TeamSurv creates charts using crowd sourced data. Boats log GPS and depth sounder information (plus compass heading and sea surface temperature when available) as they go about their nortmal activities, and upload the data to the server where the data undergoes quality checks and is corrected for tide height, speed of sound and other factors before being used to create a chart. Data can be collected using a hardware logger or through a number of software packages, and is open to all. Processed data can be viewed at the teamsurv.eu web site, overlaid on top of Google Maps.
The US National Oceanic and Atmospheric Administration is now offering complete detailed nautical charts for free download for home printing for the entire US coast. The charts are continuously updated. This should improve the safety at sea, while reducing costs for mariners. Note, however, that these print-at-home charts will typically not offer the detail that "full size" NOAA charts do.