How Boat Things Work is a resource you can't afford to be without

Special diagrams permit rapid check of hour angle and also provides means of finding altitude and azimuth of unplotted celestial bodies or identification of unplotted bodies from known altitude and azimuth

or enter as needed for cruising

Chart Image Size: 40¼" x 26⅝"

CEN-A ENC Collection: Great Lakes, Superior and Huron Elsie Hulsizer How Boat Things Work isBEFORE PURCHASING DIGITAL CHARTS, PLEASE READ THROUGH THE FAQ PAGE FOR ALL TECHNICAL QUESTIONS, THAT CAN BE FOUND THROUGH THIS LINK: https: www. charts. gc. ca help aide faq eng. html Electronic Navigational Chart (ENC) collection in S 57 format for Great Lakes Superior and Huron. The CEN A collection contains the approximate equal coverage as the following paper charts: 2200, 2201, 2205, 2206, 2207, 2224, 2225, 2228, 2235, 2241, 2242, 2243, 2244,