WEEMS & PLATH–Parallel Rolling Plotter
Parallel Rolling Plotter
|Warranty Details||Lifetime Warranty|
Product OverviewThis popular instrument consists of a plotter mounted on a roller, and includes a semi-circular protractor for measuring courses and bearings against a meridian. It also includes two quarter-circle protractors for measuring courses and bearings against a parallel of latitude. Lines are transferred and kept parallel by two rollers mounted on a slide axis. Contains 1:80,000, 1:40,000, and 1:20,000 distance scales and an inch scale. Easy to use and very accurate. 12-1/4"L.
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.