The Rogers Data Protractor Triangle EASA/ICAO is a professional aviation navigation plotting tool used for VFR flight planning, course measurement, and distance calculation on ICAO aeronautical charts (typically 1:200,000 and 1:500,000 scales).

It is designed to meet EASA PPL examination requirements and is widely used by student pilots, flight schools, and VFR pilots for manual navigation tasks such as course plotting, heading determination, and distance measurement in nautical miles.

The triangle integrates both a course protractor and ruler functionality, along with a built-in circular template for waypoint marking. It features dual-direction (eastbound/westbound) course reading and clearly marked scales optimized for aviation chart use.

Key features include:

EASA / ICAO compliant navigation plotting tool
Designed for VFR flight planning and PPL exam use
Hypotenuse length: 22.5 cm
Dual-color course system (eastbound 0°–180°, westbound 180°–360°)
Scales for 1:200,000 and 1:500,000 ICAO charts
Nautical mile distance measurement integrated
Built-in circle template (10 mm) for waypoint marking
Transparent aviation-grade plastic for chart readability
Anti-smudge “ink nub” spacing feet
Suitable for left- and right-handed use
Used in pilot training and flight schools across Europe
Supports manual dead reckoning navigation techniques
Manufactured for ICAO Annex 4 chart compatibility