New Releases for 2024- Shop now!


Protractor Triangle #103

Weems & Plath


The Protractor Triangle is inscribed with black markings. Using two 45° triangles provides an easy method of plotting and performing chart work. 


Used as a pair to transfer a directional line on a chart. Protractor scale allows easy alignment with chart meridian in any direction. Direction is maintained as one triangle is slid along the other to desired position. 90° angle helps determine lines of position. Crafted of clear, durable vinylite. Lifetime warranty.


  • Inscribed with black markings
  • Clear
  • Durable vinylite

Category: withdrawn

Type: Protractor

Vendor: Weems & Plath