8" Compact Parallel Plotter Training Chart Scale: 1:90

Scale: 1:90

containing forumlas used for training purposes

"Anyone who contemplates any onboard do-it-yourself work should have this book at his or her elbow

Last Correction: 15-Dec-2017

Forged brass ring that is brushed and lacquered

8" Compact Parallel Plotter Training Chart Scale: 1:90#60 Weems & Plath This compact GPS parallel rule is particularly suited for use on modern small chart tables. Overview Smaller version of our 120 rolling plotter. Plotter is mounted on marine aluminum roller assembly. Distance scales at 1 to 20,000 and 1 to 40,000. Inch scale. Semi circular protractor to plot courses against a meridian. Durable acrylic construction. Lifetime warranty. Specifications Marine aluminum roller . 20,000 &1: 40,000 Inch scale