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Often used in a combination of two, this Weems & Plath 103 Protractor Triangle provides a straightforward method of plotting and performing chart work. Each triangle is inscribed with black markings. The protractor scale on the triangle can aid in drawing a bearing line on a chart, and the 90° angle is helpful when determining lines of position.
Antenna & Coaxial Accessories
Navigation Books
Cruising Guides
VHF Antennas
Marine Navigation
导航图