Douglas Square Aviation Protractor. This Douglas Square Protractor is custom made by Hammond Aviation for training and navigational purposes. Use this 5 inch by 5 inch protractor for all your chart navigation needs.
JNC scale, topographical charts are used showing over 4,000 airports. Waypoints, VOR/DME, NDB's and special use airspace are included, plus weather frequencies, points of interest, landmarks, airport directory with ICAO/IATA codes, major highways and city maps, just to name a few. Airports are colour coded by runway length and surface. International, regional and aerodromes are coded by symbol shape. Pilots now have the ability to point out objects on the ground or know immediately where they are in relation to surrounding airports or points of interest: an all-in-one source of information for pre-flight or during flight. Also includes Captains Corner.
Base cartography is the US Road-Atlas 1: 2.000.000 which includes mountain ranges, lakes, rivers, etc. Includes elements such as, cities, towns. Parks and points of interest or historic value and of course, the railways and motor-ways themselves. As well, they have added all airports in USA (over 5,500) and colour coded them by runway length /surface and category ,ie. International, Regional, Civil/Military, etc.. VOR/DME , Reporting points, Waypoints, Volmet frequencies and special Use Airspace are also shown making the new Pilots' Atlas the first of it's kind.