The rapporteur règle is also known as the Breton rapporteur. It was conceived and designed by Yvonnick Guéret, with a mobile squared disk marked with the 4 cardinal points. Its use is much more intuitive than the famous Règle Cras, but with its mobile protractor in the center, it can âeuros for purists! - and lose precision.
The 4 key points of the Topo Reporter :
- Read heading in window
- Point the arrow in the direction of the course to follow
- Use the center line or one edge of the ruler to trace the route
- Using the grid to orientate North
Draw a route from A to B in 3 steps
Place one edge of the ruler on the line connecting A to B, indicating the direction of travel with the arrow.
Here we want to know the course in Quiberon Bay.
1 - Turn the disc, bringing North (N) to the top of the map - without moving the ruler!
2 âeuros Align the protractor grid with a meridian (vertical line) or a parallel (horizontal line). Choose the most convenient according to your position on the map.
Read the course directly in the reading window. Here, the 101° heading is read just above the black arrow (see magnifying glass).
