Please note there is a 1-2 week turnaround time for all CHS Charts as they are ordered through the CHS Gov. We appreciate your patience!
The Bi-rola Rule is a rugged plotter that is used by professional navigators because it is quick and easy to use. Patented vertical and horizontal rolling motion simplifies course and plotting calculations.
Adjustable radial arm allows automatic compass corrections in course plotting. Roller body with protractor markings and nautical mile scale. Radial arm has Loran interpolator scales and 200 millimeter rule. When radial arm and body are used jointly, the Bi-Rola becomes a 17in. divider. Speed/ time/ distance table included. Easy to following instructions included. Packaged in protective, durable vinyl pouch. Lifetime warranty.
Sign up to get the latest on sales, new releases and more …
226 W. Florence Ave | Inglewood, CA 90301
We are proud to be an ISO 9001 Certified Company.