The Nautical Encyclopedia

Patterson’s Illustrated Nautical Encyclopedia — Howard Patterson, 1891

⚓ The Superstition Locker ⚓

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Home ⚓ Letter E ⚓ Equiangular Spiral

Equiangular Spiral

Navigation

A rhumb line; a line cutting the meridians at a constant angle.

← Equatorial Telescope All “E” entries Equilibrium Valve →

About Historical Disclaimer Terms and Conditions Privacy Policy Contact

The Nautical Encyclopedia (1891) is in the public domain; this digital edition © 2026 PhotoOpAI.