Proportional Divider - Captain's Nautical Books & Charts

The 8 inch long Proportional Divider is a highly accurate speed-time-distance computer. Overview Use to accurately calculate speed-time-distance. Easily transfer points between different scale charts. Distance, picked off chart between divider points, can be immediately converted to speed or time. Silver/ nickel alloy

[RESILIENT AND ACCESSIBLE] - Captain's log designed to be flexible and durable while opening completely flat to easily record information on vessel

Direct 2 Boater Captain's Log Book - Spiral Bound Nautical Diary with Blue Flexible Cover - 100 Pages - Ideal Boat Journal/Sailing Notebook, Boater

Nautical Charts - Captain's Nautical Books & Charts

Proportional Divider - Captain's Nautical Books & Charts

Books / Weather - Captain's Nautical Books & Charts

Bathymetric Nautical Chart - F-101 Provincetown

Proportional Dividers Smithsonian Institution

5MOONSUN5 Proportional Divider Set of 5, Full Brass Dividers with Executive Wooden Box, Single Handed 8 Brass Navigational Dividers

Nautical Charts - Captain's Nautical Books & Charts

Nautical Charts - Captain's Nautical Books & Charts