Multipurpose navigation plotter

Details Multipurpose navigation plotter Multipurpose navigation plotter

G - Physics

01

C

235/2

G01C 21/22 (2006.01)

Patent

CA 2030511

ABSTRACT. This invention relates to a manually operable "multi-purpose navigation plotter" which allows direct; course, distance and position plotting without: arithmetic calculations, Latitude/Longitude scales, compass roses imprinted on charts or any other instruments commonly used. This plotter is universally applicable for both marine and air navigation using charts scaled in accordance with any measuring system used in the world. The "basic" plotter consist of four layered transparent members held together or taken apart by a special fastener. The "complete plotter" consist of several optional attachments, the "leeway/drift vector" and the "extension ruler/hairline". Each attachment locks- on and rotates on this fastener. Desired "magnetic" values are obtained by the rotational relationship between the "magnetic" rotably protractor disk and the adjacent fixed circular "true" protractor "base" having multiple straight sides, only four shown.

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