FR-HAUT-L4.3

Course to steer: from route fond back to cap compas

FR-HAUT-M4 · Course to steer and dead reckoning · FR-HAUT-M4-A Distance, speed and time; the forward current triangle; and the full chain from required track back to compass heading.

The inverse problem is the one that decides most chart marks: you know where you want to go; what do you **steer**? **Rf → courant → Rs → dérive → Cv → W → Cc.**

Independent study. xplor is not affiliated with the French maritime administration (DGAMPA), the ENSM, any DDTM or any préfecture maritime, is not an approved bateau-école or training centre, and awards no title, permit, certificate or endorsement. The extension hauturière is obtained only by passing the DDTM's 1h30 paper, in French, on SHOM chart 9999; all chart data in this course are illustrative. AI-drafted content pending subject-matter-expert review.