Weems & Plath
Bi-Rola Waypoint Ruler
The W&P Waypoint Ruler has been designed to simplify the process of transferring data from elecrtonic navigation aids to your paper charts. This instrument is ideal for plotting latitude/longitude coordinates from devices such as Loran, GPS, Omega, Decca, Transit and clestial navigation computers. The Waypoint Ruler will also give rapid readings of true courses, bearings and distances. The Ruler does not have to refer to the charts compass rose and can be used on the lap with badly creased and folded charts. The Weems & Plath Bi-Rola Waypoint Ruler comes with a handle that also serves as a pencil holder, pencil, instructions and durable vinyl pouch. dimensions: 5-1/8" x 15-1/4".
Discontinued, replaced by the Weems & Plath Protractor.