Proportional Divider

Boat-Stuff Verified independent store

→

Achieve fast, accurate speed–time–distance calculations directly on your chart with this 8 inch Proportional Divider. Ideal for professional navigators and serious cruising sailors who demand precision in coastal or offshore plotting. 8" proportional divider: instantly converts chart distance to unknown speed or time High-precision German construction for reliable, repeatable results Silver/nickel alloy body with stainless steel points for durability and corrosion resistance Compact size fits standard chart tables and navigation kits Backed by a lifetime warranty for long-term confidence at sea Add this professional navigation tool to your chart table for efficient passage planning and verification. Show more