Weems and Plath Black Scale Protractor Triangle
The Weems and Plath Black Scale Protractor Triangle is an extremely popular element of a navigation kit and this version is manufactured in durable clear vinylite and inscribed with black markings.
The Weems and Plath Black Scale Protractor Triangle uses two 45° triangles to provide a simplified method of plotting and performing chart work.
With its protractor scales, the Protractor Triangle is easily aligned in any direction with a chart meridian. The desired direction is maintained as one triangle is slid along the other to the desired position.
The Weems and Plath Black Scale Protractor Triangle is an extremely popular element of a navigation kit and this version is manufactured in durable clear vinylite and inscribed with black markings.
The Weems and Plath Black Scale Protractor Triangle uses two 45° triangles to provide a simplified method of plotting and performing chart work.
With its protractor scales, the Protractor Triangle is easily aligned in any direction with a chart meridian. The desired direction is maintained as one triangle is slid along the other to the desired position.
