ICAO Chart Ruler

Designed for precision and ease, the ICAO Chart Ruler features dual graduations in statute and nautical miles, perfectly calibrated for 1:1,000,000 and 1:500,000 scale aeronautical charts. Trusted by aviation students and professionals alike, it enhances navigation training and real-world flight planning, ensuring accurate distance measurements every time. Elevate your navigation skills and confidence with this essential tool.